HP LaserJet Enterprise 500 Color M551n manual

L A SERJET ENTERP RISE 500 COLOR Service Manual M551n M551dn M551xh[...]

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HP LaserJet Enterprise 500 color M551 Printers Service Manual[...]

Copyright and License © 2011 Copyright Hewlett-Packard Development Company, L.P. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in[...]

Conventions used in this guide TIP: Tips provide helpful hints or shortcuts. NOTE: Notes provide important information to exp lain a concept or to complete a task. CAUTION: Cautions indicate procedures that you should follow to avoid losing data or damaging the product. WARNING! Warnings alert you to specific procedures that you should follow to av[...]

iv Conventions used in this guide ENWW[...]

Table of contents 1 Theory of operation ............. ................................................................ ........................... .. 1 Basic operation ............... ...................................... .......................................................... ......... 2 Sequence of operation ........ .........................[...]

Step 8: Fusing ............. .................................................. .......................... 26 Step 9: ITB cleaning ................... ................................... ........................... 27 Step 10: Drum cleaning ..... ................................................. ...................... 27 Print cartridge ...........[...]

Cautions during removal and repl acement ................................................................. 70 Electrostatic discharge ...... ........................................................... ............................ 71 Required tools .......... ...................................... ................................. ..................[...]

Remove the left bottom handle ..... ..................................... ....................... 114 Hardware in tegration po cket (HIP) ( dn and xh mo dels o nly) ....................................... 115 Control panel assembly ....................... ........................................... ....................... 116 Right front cover ....[...]

Reinstall the high voltage po wer supply lo wer ............................. 169 Developing disengagement motor ..................... .............................. ........................ 170 Remo ve th e dev elopi ng di senga gemen t moto r ........................................... 17 0 Pickup motor ......................... .................[...]

3 Solve problems ................... ................................ ............................... ........................... 237 Solve problems checklist ............. ......................................................................................... . 238 Menu map ................... ........................... ........................[...]

Base product .................................................... ...................... 286 1 x 500 paper feeder ................ ... ....................................... .... 293 General timing chart ........................ ............................... ........................ 294 Circuit diagrams ................................. ........[...]

10.22.51 ............................. .................................................. ............... 393 10.22.52 .......................................... ............................... ..................... 393 10.23.50 .......................................... ............................... ..................... 393 10.23.51 ...........[...]

33.XX.YY Used board/disk ...................... ............................ ................... 412 41.02.00 Error ...................................................................................... 412 41.03.YZ Unexpected size in tray <X> ... ............................. ..................... 413 41.05.YZ Unexpected type in tray <X&g[...]

99.00.07 Upgrade not performed error reading upgrade ...... ..................... 435 99.00.08 Upgrade not performed error reading upgrade ...... ..................... 435 99.00.09 Upgrade canceled by user ..................................... .................. 435 99.00.10 Upgrade canceled by user ..................................... ...........[...]

Close front door .......................... ........................................................... 446 Close lower right door ............ ...................... ...................... .................... 446 Close upper right door ............................................... ............................. 446 Creating cleaning page .......[...]

Printing Menu Ma p... ............................................................................. 456 Printing PQ Troubleshooting... ..... ...................................... ...................... 456 Printing Registration Page ... ................................... .................................. 456 Printing RGB Samples... .... ........[...]

View an event log ............................... .............................. ..................... 470 Clear an event log ....... .......................................................... ................. 470 Clear jams ............... ............................ ...................... .......................... ......................... ...[...]

Execute a Clean Disk ... ................................................. ........... 512 Preboot menu options ......... ................................................................................................. . 514 Product updates .................................. .........................................................................[...]

HP's Premium Protection Warranty: LaserJet print cart ridge limited warranty stat ement .................. 578 Color LaserJet Fuser Kit, Toner Coll ection Unit, and Transfer Kit Limi ted Warranty Statement .......... 579 Data stored on the print cartridge ........... ............................. ........................... ...................[...]

Laser safety ............... ............................................................................ ............... 598 Canadian DOC regulations ....... ................................................... .......................... 598 VCCI statement (Japan) . ........................................................... .......................[...]

List of tables Table 1-1   Sequence of operat ion .................................... ..................................................................... ... 3 Table 1-2   Solenoids ............................... ...................................................................................... ......... 6 Table 1-3   Clutches .......[...]

Table 3-14   Important information on the configuration pages ................................................................. 306 Table 3-15   Sign In menu ................................ ............................................................... ................... 310 Table 3-16   Retrieve Job From USB menu .........................[...]

Table 3-55   Preboot menu options (5 of 5) ............................................................................................ 519 Table 3-56   Preboot menu options (5 of 5) ............................................................................................ 520 Table 4-1   Common fasteners ...................................[...]

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List of figures Figure 1-1   Relationship between the main product systems ......................................................................... 2 Figure 1-2   Engine control system ....... .................................................................................................. .... 4 Figure 1-3   DC controller block diagram ...[...]

Figure 1-33   Cassette presence sensor ............................... ...................................... ............................... 4 4 Figure 1-34   Cassette lift mechanism ......... ............................................................................................. 45 Figure 1-35   Paper level detection mechanis m ......[...]

Figure 2-22   Remove the pickup roller (Tray 1; 2 of 2) ............................................................................. 88 Figure 2-23   Remove the pickup roller (Tray 2; 1 of 4) ............................................................................. 89 Figure 2-24   Remove the pickup roller (Tray 2; 2 of 4) ..............[...]

Figure 2-63   Remove the left bottom handl e ..................... ........................................................ ............. 114 Figure 2-64   Remove the HIP (1 of 2) ............. .............................. .............................. .......................... 115 Figure 2-65   Remove the HIP (2 of 2) ............. .....[...]

Figure 2-104   Remove the residual toner feed mo tor (6 of 7) ......... .......................................................... 141 Figure 2-105   Remove the residual toner feed mo tor (7 of 7) ......... .......................................................... 141 Figure 2-106   Reinstall the residual toner co llection door ....... .....[...]

Figure 2-145   Remove the developing disengagement motor (2 o f 2) ............................ ........................... 171 Figure 2-146   Remove the pickup motor ................................. .......................... ....................... ............. 172 Figure 2-147   Remove the lifter drive assembly (1 of 2) .......... ......[...]

Figure 2-186   Reinstall the PGC actuators ( 2 of 5) ................ ................................................. ................ 199 Figure 2-187   Reinstall the PGC actuators ( 3 of 5) ................ ................................................. ................ 199 Figure 2-188   Reinstall the PGC actuators ( 4 of 5) .........[...]

Figure 2-227   Remove the delivery assembly (4 of 5) .............. .................................. ............................. 230 Figure 2-228   Remove the delivery assembly (5 of 5) .............. .................................. ............................. 231 Figure 2-229   Reinstall the delivery assembly (1 of 2) . ............[...]

Figure 3-35   Component locations (5 of 6) ................................................................. ........................... 290 Figure 3-36   Component locations (6 of 6) ................................................................. ........................... 291 Figure 3-37   1 x 500 paper feeder ...........................[...]

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1 Theory of operation ● Basic operation ● Engine control system ● Laser/scanner system ● Image formation system ● Pickup, feed, and delivery system ● Jam detection ● Optional paper feeder ENWW 1[...]

Basic operation The product routes all high-level processes thro ugh the formatter, which stores font information, processes the print image, and communicates with the host computer. The basic product operation comprises the following systems: ● The engine-control system, which includes the po wer supply and the DC controller printed circuit asse[...]

Sequence of operation The DC controller PCA controls the operating se quence, as described in the following table. NOTE: The terms fusing and fixing are synonymous. Table 1-1 Sequence of operation Period Duration Description Waiting From the time the power is turned on, the door is closed, or when the product exits Sleep mode until the product is r[...]

Engine control system The engine-control system receives commands from the formatter and interacts with the other main systems to coordinate all product functions. The engine-control system consists of the following components: ● DC controller ● High-voltage power supply ● Low-voltage power supply Figure 1-2 Engine control system Laser/scanne[...]

DC controller The DC controller controls the oper ational sequence of the printer. Figure 1-3 DC controller block diagram Fuser Laser/scanner ENWW Engine control system 5[...]

Solenoids Table 1-2 Solenoids Component abbreviation Component name SL1 Primary transfer roller disengagement solenoid SL2 Duplex reverse solenoid (HP LaserJet Enterp rise 500 color M551dn and HP LaserJet Enterprise 500 color M551xh only) SL3 Multipurpose-tray pickup solenoid SL4 Cassette pickup solenoid Clutches Table 1-3 Clutches Component abbrev[...]

Sensors Table 1-5 Sensors Component abbreviation Component name SR1 Drum home position sensor 1 SR2 Drum home position sensor 2 SR3 Drum home position sensor 3 SR5 Fuser output sensor SR6 Output bin full sensor SR7 Fuser pressure release sensor SR8 Registration sensor SR9 Fuser pressure release sensor SR11 Developer alienation sensor SR13 Tray 2 ca[...]

The product has 11 motors and three fan motors. Th e motors drive the components in the paper-feed and image-formation systems. The fan motors cool the product's inside. Table 1-6 Motors Abbreviation Name Purpose T ype Failure detection M2 Fuser motor Drives the Fuser roller, the delivery roller, and the Fuser pressure roller DC motor Yes M3 D[...]

Table 1-6 Motors (continued) Abbreviation Name Purpose T ype Failure detection M12 Residual toner-feed motor Drives the residual toner feed screw DC motor Yes M13 Pickup motor Drives the cassette pickup roller, MP tray pickup roller, feed roller, registration roller, and re-pickup roller Stepping motor No Table 1-7 Fans Abbreviation Name Cooling ar[...]

High voltage power supply The high-voltage power supply delivers the high-vol tage biases to the following components used to transfer toner during the image-formation process: ● Primary-charging roller (in the cartridge) ● Developing roller (in the cartridge) ● Primary-transfer roller ● Secondary-transfer roller Figure 1-4 High voltage pow[...]

Table 1-8 High voltage power su pply circuits (continued) Circuit Descrip tion Primary-transfer-bias generation DC positive bias transfer s the latent toner image from each photosensitive drum onto the ITB. Secondary-transfer-bias generation Two DC biases, one positive and one negative , transfer the toner from the ITB onto the paper. ENWW Engine c[...]

Low voltage power supply The low-voltage power-supply circuit converts th e AC power from the wall receptacle into the DC voltage that the product components use. The pr oduct has two low-voltage power-supplies for 110 Volt or 220 Volt input. Figure 1-5 Low voltage power-supply circuit +3.3V A Protection circuit 24VRMT Low-voltage power supply AC i[...]

Table 1-9 Converted DC voltages Main DC voltage Sub-voltage Behavior Notes +24 V +24VA Stopped during Sleep (powersave) mode The 24V POWER SUPPLY (24VRMT) signal controls supply or interruption of +24VA. +24VB Interrupted when the front door or right door open Stopped during Sleep (powersave) mode +5 V +5VA Supplied during Sleep (powersave) mode 2 [...]

Overcurrent/overvoltage protection The low-voltage power supply stops supplying the DC voltage to the product components whenever it detects excessive current or abnorma l voltage from the power source. The low-voltage power supply has a protective circ uit against overcurrent and overvoltage to prevent failures in the power supply circuit. If the [...]

Power off condition The DC controller turns off the product with th e 24V POWER SUPPLY (24VRMT) signal, 5V POWER SUPPLY (VC5VOFF) signal, 3V POWER SUPPLY (VC3VOFF) signal, and VOLTAGE CONVERSION (PWRSAVE) signal. +5VA and +5VC, are converted into +3.2V, and +3.3V A and supplied during the power off condition. Fuser control The fuser-control circuit[...]

Fuser temperature control circuit The temperatures of the two rollers in the fuser fluctu ate according to the stage of the printing process. The DC controller sends commands to the fu ser-control circuit to adjust temperatures. Figure 1-7 Fuser temperature control circuit Fuser Fuser sleev e unit Fuser Fuser heater safety circuit Fuser control cir[...]

Fuser over temperature protection To protect the fuser from excessive temperatures, the product has four layers of protective functions. If one function fails, the subsequent functions should detect the problem. ● DC controller : When a thermistor or thermopile detects a temperature above a certain threshold, the DC controller interrupts power to[...]

Fuser failure detection When the DC controller detects any of the following conditions, it d etermines that the fuser has failed. The DC controller then interrupts power to the fuser heaters and notifies the formatter. ● Abnormally high temperatures : Temperatures are too high for any of the following components, at any time: ◦ TH1: 230° C (44[...]

Laser/scanner system The laser/scanner system forms the latent electrosta tic image on the photosensitive drums according to the VIDEO signals sent from the formatter. The pr oduct has two laser/scanners: one for yellow and magenta and the other for cyan and black. The formatter sends the DC controller instructions for the image of the page to be p[...]

The DC controller determines that a laser/scanner has failed when any of the following conditions occurs: ● Laser failure : The detected laser intensity does not ma tch a specified value when the product initializes. ● Beam-detect (BD) failure : The BD interval is outside a specified range during printing. ● Scanner-motor failure : The scanne[...]

Image formation system The image-formation system creates the printed imag e on the paper. The system consists of the laser/ scanners, print cartridges, imaging drums, ITB, and fuser. Figure 1-9 Image formation system Las er/scanner Laser/scan ner Fus e r Y M C K ENWW Image formation system 21[...]

Image formation process The image-formation system consists of ten steps divided into six functional blocks. Figure 1-10 Image formation process Fusing Fuser Y M C K Table 1-11 Image formation process Functional block Steps Description Latent image formation 1. Pre-exposure 2. Primary charging 3. Laser-beam exposure An invisible latent image forms [...]

Step 1: Pre-exposure Light from the pre-exposure LED strikes the surface of the photosensitive drum to remove any residual electrical charges from the drum surface. Figure 1-11 Pre-exposure Step 2: Primary charging The primary-charging roller contacts the photose nsitive drum and charges the drum with negative potential. Figure 1-12 Primary chargin[...]

Step 3: Laser-beam exposure The laser beam strikes the surface of the photosensi tive drum in the areas where the image will form. The negative charge neutralizes in those ar eas, which are then ready to accept toner. Figure 1-13 Laser-beam exposure Step 4: Development Toner acquires a negative charge as the developing cylinder contacts the develop[...]

Step 5: Primary transfer The positively charged primary-transfer rollers contac t the ITB, giving the ITB a positive charge. The ITB attracts the negatively charged toner from the surf ace of each photosensitive drum, and the complete toner image transfers onto the ITB, beginning with yellow, followed by magenta, cyan, and black. Figure 1-15 Primar[...]

Step 7: Separation The stiffness of the paper causes it to separate fr om the ITB as the ITB bends. The static-charge eliminator removes excess charge from the pape r to ensure that the toner fuses correctly. Figure 1-17 Separation Step 8: Fusing To create the permanent image, the paper passes thro ugh heated, pressurized rollers to melt the toner [...]

Step 9: ITB cleaning The cleaning blade scrapes the residual toner off the surface of the ITB. The residual toner feed screw deposits residual toner in the toner collection box. Figure 1-19 ITB cleaning Step 10: Drum cleaning Inside the print cartridge, the cleaning blade remove s residual toner from the surface of the drum to prepare it for the ne[...]

The DC controller rotates the drum motor to drive the photosensitive drum, developing roller, and the primary-charging roller. Figure 1-21 Print-cartridge system The DC controller rotates the drum motor to drive th e photosensitive drum, developing unit, and primary charging roller. The memory tag is a non-volatile memory chip that stores informati[...]

The DC controller notifies the formatter of an error if any of the following conditions exist: ● The memory tag fails to either read to or write from the DC controller ● The RD sensors detect a missing or incorrectly installed print cartridge. ● The accumulated print time reaches a specified ti me period or the cartridge runs out of toner. ?[...]

The DC controller rotates the developing disengag ement motor and changes the direction of the cam according to the instructions from the formatter for each print job. When the product is turned on and at the end of each print job, al l four of the developing rollers disengage from the photosensitive drums. If the next print job is full-color mode,[...]

Intermediate transfer belt (ITB) unit The ITB unit accepts the toner images from the phot osensitive drums and tra nsfers the completed image to the paper. The ITB unit has these main components: ● ITB ● ITB drive roller ● ITB-driven roller ● Primary-transfer rollers ● ITB cleaner The ITB motor drives the ITB drive roller, which rotates t[...]

Primary-transfer-roller engagement and disengagement Depending on the requirements of the print job, the primary-transfer rollers engage with the ITB so it can receive toner from the photosensitive drums. Table 1-12 Primary-transfer-roller engagement states Roller state Product state All rollers disengaged The home position for the ITB unit 32 Chap[...]

Table 1-12 Primary-transfer-roller engagement states (continued) Roller state Product state All rollers engaged The state for a full-color print job Black roller engaged The stat e for a black-only print job Figure 1-24 Three states of primary-transfer -roller engagement and disengagement F our colors are disengaged F our colors are engaged Only bl[...]

If the DC controller does not receive the expected signal from the ITB home-position sensor when the primary-transfer-roller engages or disengages, but the primary-transfer-roller disengagement motor is rotating, the DC controller determines that the pr imary-transfer-disengagemen t mechanism has failed, and notifies the formatter. 34 Chapter 1 The[...]

ITB cleaning The cleaning blade in the ITB cleaner scrapes the re sidual toner off the ITB surface. The drum motor (M5) drives the residual toner feed screw. The scre w feeds the residual toner to the residual toner feed unit. The residual toner feed motor (M12) drives the residual toner feed screw. The residual toner feed screw deposits the residu[...]

Calibration The product calibrates itself to maintain excellent pr int quality. Calibration corrects color-misregistration and color-density variation. During calibration, the product places a specific pa ttern of toner on the surface of the ITB. Sensors at the end of the ITB read the toner pattern to determine if adjustments are necessary. Figure [...]

If data from the color-misregistration and image-de nsity sensors is outside a specified range when the product is turned on or when it is beginning the calibration sequence, the DC controller determines that these sensors have failed, and it notifies the formatter. Image stabilization control Environmental changes or deterioration of the phot osen[...]

Pickup, feed, and delivery system The pickup, feed, and delivery system uses a series of rollers to move the paper through the product. Figure 1-27 Switches and sensors for the pickup , feed, and delivery system (1 of 2) Y M C K Table 1-14 Switches and sensors for the pickup , feed, and delivery system (1 of 2) Abbreviation Component SR5 Fuser outp[...]

Table 1-14 Switches and sensors for the pickup, feed , and delivery system (1 of 2) (continued) Abbreviation Component SR21 Tray 1 paper SR22 Duplexer refeed (duplex models only) Figure 1-28 Switches and sensors for the pickup , feed, and delivery system (2 of 2) SR10 Table 1-15 Switches and sensors for the pickup , feed, and delivery system (2 of [...]

Figure 1-29 Motors and solenoids for the pickup, feed, and delivery system Y M C K Table 1-16 Motors and solenoids for the pickup, feed, and delivery system Abbreviation Component M2 Fuser motor M5 Drum motor 3 M7 Lifter motor M11 Duplex reverse motor (duplex models only) M13 Pickup motor CL1 Duplex re-pickup clutch (duplex models only) SL2 Duplex [...]

Figure 1-30 Three main units of the pickup, feed, and delivery system F user/deli v ery block Duple x block Y M C K ENWW Pickup, feed, and delivery system 41[...]

Pickup-and-feed unit The pickup-and-feed unit picks an individual sheet of paper from the multipurpose tray or the cassettes, carries it through the secondary-transf er unit, and feeds it into the fuser. Figure 1-31 Pick feed mechanism Y M C K 42 Chapter 1 Theory of operation ENWW[...]

Cassette pickup The sequence of steps for the cassette-tr ay pickup operation is the following: 1. When the product starts or the tray closes, the lift ing mechanism lifts the paper stack so it is ready. 2. After receiving a print command fr om the formatter, the DC controller rotates the pickup motor, which causes the cassette pickup roller, casse[...]

Cassette presence detection The cassette presence sensor is in the lifter drive unit. The sensor detects the cassette-presence sensor flag and determines whether the cassette is installed correctly. Figure 1-33 Cassette presence sensor 44 Chapter 1 Theory of operation ENWW[...]

Cassette lift operation The DC controller rotates the lifter motor (M7) and mo ves the lifter rack until the Tray 2 cassette lifter sensor (SR9) detects it. The lifter lifts, and the lift ing plate moves up to the position where the media can be picked up. The lift operation is performed by monitoring the cassette media-stack-surface sensor when th[...]

Cassette paper presence detection The cassette media-presence sensor detec ts whether paper is in the cassette. Figure 1-35 Paper level detection mechanism 46 Chapter 1 Theory of operation ENWW[...]

Cassette media width detection The paper width 1 sensor (SR10) detects the size of the paper loaded in the cassette. The DC controller determines the paper size using the paper-width senso r. The paper-width sensor flag moves relative to the cassette-side paper guide. The pickup pressure is adjusted according to the paper size to prevent a pickup f[...]

Multifeed prevention In the cassette, a separation roller prevents multip le sheets of paper from entering the paper path. The cassette pickup roller drives the separa tion roller through a sheet of paper. The low friction force between the sheets weakens the driving force from the cassette pickup roller. Because some braking force is applied to th[...]

Multipurpose tray pickup The multipurpose tray paper-presence sensor detects wh ether paper is in the tray. If no paper is present, the DC controller notifies the formatter. Prin ting does not occur until paper is in the tray. The sequence of steps for the multipurpo se tray pickup operation as follows: 1. After receiving a print command fr om the [...]

Paper feed After the pickup operation, the paper feed s through the product and into the fuser. 1. The paper passes through the feed rollers. The registration shutter aligns the paper correctly to prevent skewed printing. 2. The DC controller detects the leading edge of pa per by the Registration sensor (SR8) and controls the rotational speed of th[...]

Skew-feed prevention The product can straighten the paper without slowing the feed operation. 1. As the paper enters the paper path, the leading edge strikes the registration shutter, which straightens the paper. The paper does not pass through the shutter . 2. The feed rollers keep pushing the paper, which creates a force on the leading edge again[...]

OHT detection The OHT sensor detects overhead transparencies. The OHT sensor is a transmission sensor that uses an LED. The DC controller determines a media mismatch and notifies the formatter when the media type differs from the media type detected by the OHT senso r. The DC controller turns the LED in the OHT sensor on and off during the wait or [...]

Loop control The loop control monitors the tension of the paper between the second-transfer roller and the fuser. ● If the fuser rollers rotate more slowly than the se condary transfer rollers, the paper warp increases and an image defect or paper crease occurs. ● If the fuser rollers rotate faster than the secondar y transfer rollers, the pape[...]

Pressure-roller pressurization control To prevent excessive wear on the pressure roller and help with jam-clearing procedures, the pressure roller pressurizes only during printing and standby. The DC controller reverses the fuser motor. The fuser motor rotates the fuser pressure-release cam. Figure 1-43 Pressure-roller pressurization control Fuser [...]

Duplexing unit (duplex models) For supported models, the duplexing unit reverses the paper and feeds it through the paper path to print the second side. The duplexing unit consists of the following components: ● Duplexing-reverse unit : Installed on top of the product ● Duplexing-feed unit : Along the right side The DC controller controls the o[...]

Duplexing reverse and feed control The duplexing reverse procedure pulls the paper into the duplexing unit after it exits the fuser. The duplexing feed procedure moves the paper through the duplexer so it can enter the product paper path to print the second side of the page. 1. After the first side has printed, the duplexing fl apper solenoid opens[...]

Jam detection The product uses the following sensors to detect th e paper as it moves through the paper path and to report to the DC controller if the paper has jammed. ● Fuser output sensor (SR5) ● Registration sensor (SR8) ● Fuser loop 1 (SR14) ● Fuser loop 2 (SR15) ● Duplexer refeed (SR22) Figure 1-45 Jam detection sensors Y M C K The [...]

Table 1-17 Jams that the product detects (continued) Jam Description Fuser delivery delay jam The fuser delive ry paper-feed sensor does not detect the leading edge of the paper within a specified period after the TOP se nsor detects the leading edge. Fuser delivery stationary jam The fuser de livery paper-feed sensor does not detect the trailing e[...]

Optional paper feeder The 1x500-sheet paper feeder is optionally installed at bottom of the printer. The paper feeder picks up the print media and feeds it to the printer. NOTE: These optional trays are not identical to the main cassette (Tray 2). Figure 1-46 Optional paper feeder Y M C K The paper-deck drivers contain a microcomputer and control t[...]

Figure 1-47 Signals for the paper feeder The input trays contain several motors, solenoids, se nsors, and switches, as described in the following table. Table 1-18 Electrical components for the paper feeder Compo nent type Abbreviation Component name Motors M1 Paper feeder motor M2 Paper feeder lift motor Solenoids SL1 Paper feeder pickup solenoid [...]

Paper-feeder pickup and feed operation The paper feeder picks up one sheet from the pap er-feeder cassette and feeds it to the product. Figure 1-48 Paper-feeder pickup and feed operation ENWW Optional paper feeder 61[...]

Paper size detection and cassette presence detection The paper-feeder cassette media-size switch (SW1) d etects the size of paper loaded in the paper-feeder cassette. The paper-feeder driver determines the me dia size by monitoring the combination of the switches. Figure 1-49 Paper size detection Table 1-19 Paper size detection Paper size Paper-fee[...]

Table 1-19 Paper size detection (continued) Paper size Paper-feed er cassette media-si ze switch settings Top switch Center switch Bottom switch A5 On Off Off B5 Off On On Executive On Off On Letter Off On Off A4 Off Off On Legal On On Off No cassette Off Off Off The paper-feeder cassette media size switch (SW1 ) detects whether the paper-feeder ca[...]

Paper feeder cassette lift operation The cassette lift operation keeps the stack surface of paper at a specified height to maintain stable media feeding. The paper-feeder driver controls th e paper-feeder lifter motor (M2) and monitors the paper-feeder media stack surface sensors (SR1, SR2) to adjust the stack height when the printer is turned on, [...]

The paper-feeder driver notifies th e formatter if either of the pape r-feeder media-stack surface sensors fails to detect the stack surface within a specifie d period from when a lift-up operation starts. ENWW Optional paper feeder 65[...]

Paper feeder presence detection The Tray 3 paper present (SR3) detects whether the paper is present in the paper-feeder cassette. 66 Chapter 1 Theory of operation ENWW[...]

Paper-feeder multiple feed prevention The paper-feeder uses a separation roller to prevent multiple sheets of paper from entering the printer. The separation roller prevents multiple feeds of paper by allowing the paper-feeder separation roller to rotate in the same direction as the paper-feeder f eed roller 1. The paper-feeder separation roller is[...]

Paper feeder jam detection The paper feeder uses the Tray 3 feed (SR4) to detect the presence of paper and to check whether paper has jammed. Figure 1-52 Jam detection Y M C K The paper-feeder driver identifies a jam if the sens or detects paper at a specified timing stored in the paper-feeder driver. The paper-feeder driver stops printing and noti[...]

2 Removal and replacement ● Introduction ● Removal and replacement strategy ● Service approach ● Customer self repair (CSR) components ● Covers ● Internal assemblies ● Optional paper feeder assembly (Tray 3) ENWW 69[...]

Introduction This chapter describes the removal and replacement of field-replaceable units (FRUs) and customer- replaceable units (CRUs). Replacing FRUs is generally the reverse of removal. Occasionally, notes and tips are included to provide directions for difficult or critical replacement procedures. HP does not support repairing individual subas[...]

Electrostatic discharge CAUTION: Some parts are sensitive to electrostatic discharge (ESD). Look for the ESD reminder when removing product parts. Always perform service work at an ESD protecte d workstation or mat, or use an ESD strap. If an ESD workstat ion, mat, or strap is not available, ground yourself by touching the sheet-metal chassis befor[...]

Required tools ● #2 Phillips screwdriver with a magneti c tip and a 152-mm (6-inch) shaft length ● Small flat blade screwdriver ● Needle-nose pliers ● ESD mat or ESD strap (if one is available) ● Penlight (optional) CAUTION: Always use a Phillips screwdriver (callout 1). Do not use a pozidrive screwdriver (callout 2) or any motorized scre[...]

Service approach Before performing service ● Remove all media from the product. ● Turn off the power using the power switch. ● Unplug the power cable and interface cable or cables. ● Place the product on an ESD workstation or mat, or use an ESD strap (if one is available). If an ESD workstation, mat, or strap is not available, ground yourse[...]

Parts removal order Figure 2-2 Parts removal order (1 of 2) Component Remove Remove Remove Remove Remove Remove Print cartridges Duplex reverse guide Toner collection unit (TCU) Formatter Hard dr ive ( HDD) Formatter Solid sta te drive (SSD) Formatter Memory DIMMs Formatter Tray 2-3 cassettes Fuser Tray 1 pickup roller Tray 2 pickup and separation [...]

Figure 2-3 Parts removal order (2 of 2) Component Remove Remove Remove Remove Remove Remove Remove Remove Remove Remove Delivery fan, cartridge fan, and environmental sensor TCU Left cover Toner collection sensor TCU Left cover Residual-to ner feed motor TCU ITB Left cover Registration density (RD) sensor T2 ITB Power supply (PS) fan and fan duct T[...]

Customer self repair (CSR) components Print cartridges CAUTION: If toner gets on your clothing, wipe it of f with a dry cloth and wash clothing in cold water. Hot water sets toner into fabric . 1. Open the front door. Make sure th at the door is completely open. Figure 2-4 Remove the print cartridge (1 of 2) 76 Chapter 2 Removal and replacement ENW[...]

2. Grasp the print-cartridge handle an d pull out to remove. Repeat this step for each print cartridge. CAUTION: Do not touch the green roller. Doing so can damage the cartridge. Do not expose the cartridge to strong light. Cover the cartridge with a sheet of paper to protect it from light. Reinstallation tip Align the print cartridge with its slot[...]

Duplex reverse guide 1. Grasp the duplex reverse guide and pull it away from the product to release it. Figure 2-6 Remove the duplex reverse guide (1 of 2) 2. Remove the guide. Figure 2-7 Remove the duplex reverse guide (2 of 2) 78 Chapter 2 Removal and replacement ENWW[...]

Toner collection unit NOTE: The toner collection unit is designed for a sing le use. Do not try to empty the toner collection unit and reuse it. Doing so could cause toner to sp ill inside the product and result in reduced print quality. For recycling informatio n, see the product user guide. 1. Open the front door. Make sure th at the door is comp[...]

3. To prevent toner spills, place the blue cap (callout 1) over the blue opening at the top of the unit (callout 2). Figure 2-10 Remove the toner collection unit (3 of 4) 1 2 Figure 2-11 Remove the toner collection unit (4 of 4) 4. Recycle the toner collection unit. 80 Chapter 2 Removal and replacement ENWW[...]

Formatter PCA CAUTION: ESD sensitive component. 1. Turn the product off and disconnect the powe r and interface cable or interface cables. 2. Unscrew the formatter thumb screws, and then firmly pull the formatter from the product. Place the formatter on a clean, flat, grounded surface. Figure 2-12 Remove the formatter NOTE: When reinstalling the fo[...]

Disk drives NOTE: The product has a hard disk drive (HDD) or solid state module (SSM) installed. If you install a replacement disk drive, you must pe rform reload the product firmware. See Reload the firmware on page 85 . Before proceeding, remove the following components: ● Formatter PCA. See Formatter PCA on page 81 Remove the HDD CAUTION: ESD [...]

3. Hold the locking tab in the rele ase position, and then slide the HDD toward the edge of the formatter to remove it. Reinstallation tip When the HDD is reinstalled, make su re that the HDD is fully seated and that the locking lever snaps into the locked position. Figure 2-14 Remove the HDD (2 of 2) ENWW Customer self repair (CSR) components 83[...]

Remove the SSM CAUTION: ESD sensitive component. 1. Place the formatter on a clean, flat, grounded surface. 2. Turn the locking tab to release it, and then remove the tab. Figure 2-15 Remove the SSM (1 of 2) 3. Slide the SSM toward the edge of the formatter to remove it. Figure 2-16 Remove the SSM (2 of 2) 84 Chapter 2 Removal and replacement ENWW[...]

Install a replacement hard drive After installing a replacement hard drive, you mu st reload the firmware by performing a firmware upgrade. Reload the firmware 1. Copy the xxxxxxx.bdl file to a portable USB flash me mory storage device (thumbdrive). 2. Turn the product on, and then wait until it reaches the Ready state. 3. Press the Home button or [...]

Tray cassette NOTE: Use this procedure to remove the Tr ay 2 or optional Tray 3 cassette. 1. Pull the tray straight out of the product until it stops. Figure 2-17 Remove the tray cassette (1 of 2) 2. Carefully lift up on the tray to re lease it, and then remove the tray. Figure 2-18 Remove the tray cassette (2 of 2) 86 Chapter 2 Removal and replace[...]

Fuser CAUTION: The fuser might be hot. Allow enough time after turning off the product power for the fuser to cool. 1. Open the right door assembly. Figure 2-19 Remove the fuser (1 of 2) 2. Grasp the handles and squeeze the blue release triggers. Pull the fuser straight out of the product to remove it. Figure 2-20 Remove the fuser (2 of 2) ENWW Cus[...]

Pickup roller (Tray 1) CAUTION: Do not touch the spongy roller surface unless you are replacing the roller. Skin oils on the roller can cause paper pickup problems. 1. Open Tray 1, release two tabs (callout 1), and th en rotate the roller cover away from the product to remove it. TIP: Push down along the top edge of th e cover to easily release the[...]

Pickup roller (Tray 2) CAUTION: Do not touch the spongy roller surface unless you are replacing the roller. Skin oils on the roller can cause paper pickup problems. 1. Look up into the Tray 2 cavity (where the cassette would be insta lled), and pull down to release the blue roller-locking lever. Reinstallation tip When the roller is reinstalled, ro[...]

3. Rotate the roller shaft down and away from the pr oduct, and then slide the roller toward the rear of the product to release the front of the roller shaft. Figure 2-25 Remove the pickup roller (Tray 2; 3 of 4) 4. Remove the pickup roller. Reinstallation tip Make sure that the roller is orientated correctly when it is reinstalled the large white [...]

Pickup and feed rollers (Tray 3) CAUTION: Do not touch the spongy roller surface unless you are replacing the roller. Skin oils on the roller can cause paper pickup problems. 1. Locate the Tray 3 pickup and feed rollers. TIP: The feeder is shown front side up in this proc edure for clarity. You do not have to separate the product from the feeder to[...]

2. Release three tabs (callout 1) , and then remove the rollers. Reinstallation tip When you reinstall the rollers, make sure that the rollers snap into place. Figure 2-28 Remove the Pickup and feed rollers (Tray 3; 2 of 2) 1 92 Chapter 2 Removal and replacement ENWW[...]

Separation roller (Tray 2) CAUTION: Do not touch the spongy roller surface unless you are replacing the roller. Skin oils on the roller can cause paper pickup problems. NOTE: Remove the Tray 2 cassette if not already removed for service. See Tray cassette on page 86 . Remove two screws (callout 1), and then remove the separation roller assembly (ca[...]

Secondary transfer roller CAUTION: Do not touch the spongy roller surface unless you are replacing the roller. Skin oils on the roller can cause image quality problems. 1. Open the right door assembly. Figure 2-30 Remove the transfer roller (1 of 3) 2. Use the blue lever (callout 1) to lo wer the secondary transfer assembly. Figure 2-31 Remove the [...]

3. Grasp the roller shaft collars, and lift the transfer roller off of the product. Figure 2-32 Remove the transfer roller (3 of 3) Reinstall the transfer roller When you reinstall the transfer roller, make sure that the pins on the shaft coll ars (callout 1) align with the holes in the mounting assembly. Figure 2-33 Reinstall the transfer roller 1[...]

Secondary transfer assembly The secondary transfer assembly includes the transfer roller. 1. Open the right door assembly. 2. Use the blue lever (callout 1) to lo wer the secondary transfer assembly. Figure 2-34 Remove the secondary tr ansfer assembly (1 of 3) 1 3. Push the pin on the release-lever side of the assembly toward the inside of the prod[...]

4. Pull the assembly straight out of the product to remove it. Figure 2-36 Remove the secondary transfer assembly (3 of 3) Reinstall the secondary transfer assembly Press and hold down the blue release lever when you reinstall the assembly. Figure 2-37 Reinstall the secon dary transfer assembly ENWW Customer self repair (CSR) components 97[...]

Intermediate transfer belt (ITB) CAUTION: Do not touch the black-plastic be lt. Skin oils and fingerprints on the belt can cause print- quality problems. Always place the ITB on a fl at surface in a safe and protected location. 1. Open the right door assembly. 2. Use the blue lever (callout 1) to lo wer the secondary transfer assembly. Figure 2-38 [...]

4. Grasp the large handles on the ITB and then pull th e ITB straight out of the product to remove it. CAUTION: The ITB is a sensitive component. Be careful when handling the ITB so that it is not damaged. Always place the ITB in a safe and protected location. Figure 2-40 Remove the intermediate transfer belt (3 of 3) Reinstallation tip If you are [...]

Right door (optional paper feeder) 1. Open the right door. Figure 2-41 Remove the right door; optional paper feeder (1 of 3) 2. Release one tab (callout 1), and then slide the stopper toward the right side of the product to remove it. Figure 2-42 Remove the right door; optional paper feeder (2 of 3) 1 100 Chapter 2 Removal and replacement ENWW[...]

3. Support the door, and then release the door-retai ner arm at the bottom of the door. Raise the door to release the lower hinge pin, and then remove the door. Figure 2-43 Remove the right door; opt ional paper feeder (3 of 3) ENWW Customer self repair (CSR) components 101[...]

Covers Identification and location Figure 2-44 External panels, covers, and doors; identification and location 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Item Description Item Description 1 Front top cover (see Front top cover on page 122 ) 8 Left bottom handle (see Left bottom handle on page 114 102 Chapter 2 Removal and replacement ENWW[...]

Item Description Item Description 2 Rear top cover (see Rear top cover on page 127 ) 9 Rear bottom handle (see Rear bottom handle on page 130 ) 3 Hardware integratio n pocket (HIP) (see Hardware integration pocket (HIP) (dn and xh models only) on page 115 ) 10 Rear cover (see Rear cover and upper rear cover on page 124 ) 4 Right door assembly (see [...]

2. Remove two screws (callout 1), and then remove the front door assembly. NOTE: A small sheet-metal bracket on the left side of the door is not captive. Do not lose the bracket when you remove the screw. Figure 2-46 Remove the front door assembly (2 of 2) 1 104 Chapter 2 Removal and replacement ENWW[...]

Right door assembly 1. Open the right door assembly. Figure 2-47 Remove the right door assembly (1 of 8) 2. Close the secondary transfer assembly. Figure 2-48 Remove the right door assembly (2 of 8) ENWW Covers 105[...]

3. Remove three screws (callout 1). NOTE: Press down on the hinge with your hand to prevent it from springing upward when the screws are removed. Figure 2-49 Remove the right door assembly (3 of 8) 1 4. Carefully release one link arm. Figure 2-50 Remove the right door assembly (4 of 8) 106 Chapter 2 Removal and replacement ENWW[...]

5. Remove one screw (callout 1). Push the cover (callout 2) toward the product, and then lift the cover to remove. Figure 2-51 Remove the right door assembly (5 of 8) 1 2 6. Disconnect two connectors (callout 1), and th en release the wire harness from the guide (callout 2). TIP: It is easier to disconnect the lower connector if you first remove th[...]

7. While pressing down on the small hinge (ca llout 1), remove two screws (callout 2). Figure 2-53 Remove the right door assembly (7 of 8) 2 1 8. Remove the right door assembly. Figure 2-54 Remove the right door assembly (8 of 8) 108 Chapter 2 Removal and replacement ENWW[...]

Right rear cover 1. Open the right door assembly. Figure 2-55 Remove the right rear cover (1 of 3) 2. Remove two screws (callout 1) and release two tabs (callout 2). Figure 2-56 Remove the right rear cover (2 of 3) 2 1 ENWW Covers 109[...]

3. Rotate the cover away from the product, and then remove it. Figure 2-57 Remove the right rear cover (3 of 3) 110 Chapter 2 Removal and replacement ENWW[...]

Left cover Before proceeding, remove the following components: ● Formatter PCA. See Formatter PCA on page 81 . ● Toner collection unit. See Toner collection unit on page 79 . Remove the left cover 1. Remove four screws (callout 1). Figure 2-58 Remove the left cover (1 of 4) 1 2. Release the rear edge of the cover, and sl ightly separate the cov[...]

3. Slide the cover toward the back of the product. Figure 2-60 Remove the left cover (3 of 4) 4. Remove the cover. Figure 2-61 Remove the left cover (4 of 4) 112 Chapter 2 Removal and replacement ENWW[...]

Left bottom cover Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Left cover. See Left cover on page 111 . Remove the left bottom cover ▲ Remove two screws (callout 1) and the cover. Figure 2-62 Remove the left bottom cover 1 ENWW Covers 113[...]

Left bottom handle Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Left cover. See Left cover on page 111 . ● Left bottom cover. See Left bottom cover on page 113 . Remove the left bottom handle ▲ Release the retainer (callout 1), and then slide th e handle toward the fro[...]

Hardware integration pocket (HIP) (dn and xh models only) 1. Remove one screw (callout 1), and then release two tabs (callout 2). Figure 2-64 Remove the HIP (1 of 2) 2 1 2. Release one connector (callout 1). Figure 2-65 Remove the HIP (2 of 2) 1 ENWW Covers 115[...]

Control panel assembly 1. Open the front door and the right door. 2. Remove one screw (callout 1). Figure 2-66 Remove the control panel assembly (1 of 4) 1 3. Remove one screw (callout 1). Figure 2-67 Remove the control panel assembly (2 of 4) 1 116 Chapter 2 Removal and replacement ENWW[...]

4. Lift the control panel assembly up, and then rotate the top of the assembly to the left to release from the product. CAUTION: The control panel assembly is attached to the product by the wire harness connector. Figure 2-68 Remove the control panel assembly (3 of 4) 1 2 5. Disconnect one connector (callout 1), and then remove the control panel as[...]

Right front cover Before proceeding, remove the following components: ● Control panel assembly. See Control panel assembly on page 116 . Remove the right front cover NOTE: Be careful. When removing the cover, do no t dislodge the power button. If the button is dislodged, see Reinstall the power button on page 121 to reinstall it. 1. Remove one sc[...]

2. Remove one screw (callout 1). Figure 2-71 Remove the right front cover (2 of 5) 1 3. Before you proceed, take note of the tab locations at the bottom of the cover. Figure 2-72 Remove the right front cover (3 of 5) ENWW Covers 119[...]

4. Release the tab on the bottom of the cover. TIP: It might be easier if you position the product at the edge of the work surface so that there is space to access the tab. You might try pushing the tab down by carefully inserting a small flat blade screwdriver. Figure 2-73 Remove the right front cover (4 of 5) 5. Pull down on the cover to remove i[...]

Reinstall the power button Snap the power button into the holders on the cover. Make sure that the spring is correctly installed. Figure 2-75 Reinstall the power button ENWW Covers 121[...]

Front top cover Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Left cover. See Left cover on page 111 . ● Control panel assembly. See Control panel assembly on page 116 . Remove the front top cover 1. Remove one screw (callout 1). Figure 2-76 Remove the front top cover (1 [...]

2. Slide the cover toward the left side of the pr oduct to release it, and then remove the cover. Figure 2-77 Remove the front top cover (2 of 2) ENWW Covers 123[...]

Rear cover and upper rear cover Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Right rear cover. See Right rear cover on page 109 . ● Left cover. See Left cover on page 111 . Remove the rear cover and upper rear cover 1. Remove eight screws (callout 1). Figure 2-78 Remove [...]

2. Slide the cover up. Figure 2-79 Remove the rear cover and upper rear cover (2 of 4) 3. Release three tabs (callout 1) and then remove the cover. Figure 2-80 Remove the rear cover and upper rear cover (3 of 4) 1 ENWW Covers 125[...]

4. Slide the upper rear cover toward the left to rele ase three tabs (callout 1), and then separate the upper rear cover (callout 2) from the rear cover. Figure 2-81 Remove the rear cover and upper rear cover (4 of 4) 2 1 126 Chapter 2 Removal and replacement ENWW[...]

Rear top cover Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Left cover. See Left cover on page 111 . ● Hardware integration pocket (HIP). See Hardware integration pocket (HIP) (dn and xh models only) on page 115 . ● Control panel assembly. See Control panel assembly on[...]

2. Lift the corner of the cover to release one tab (c allout 1), and then slide the cover toward the left side of the product to remove it. Figure 2-83 Remove the rear top cover (2 of 2) 1 128 Chapter 2 Removal and replacement ENWW[...]

Right bottom handle Before proceeding, remove the following components: ● Right rear cover. See Right rear cover on page 109 . ● Control panel assembly. See Control panel assembly on page 116 . ● Right front cover. See Right front cover on page 118 . Remove the right bottom handle ▲ Remove one screw (callout 1), and then slide the ha ndle t[...]

Rear bottom handle Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Right rear cover. See Right rear cover on page 109 . ● Left cover. See Left cover on page 111 . ● Rear cover and rear upper cover. See Rear cover and upper rear cover on page 124 . Remove the rear bottom h[...]

Internal assemblies TIP: For clarity, some photos in this chapter show components removed that would not be removed to service the product. If necessary, remove the compon ents listed at the beginning of a procedure before proceeding to service the product. Delivery fan, cartridge fan, and environmental sensor Before proceeding, remove the followin[...]

2. Disconnect five connectors (callout 1). NOTE: Disconnect the larger connector on the righ t side from the bottom. Disconnect the two smaller connectors on the right side from the top. Figure 2-87 Remove the delivery fan, cartridge fan, and environmental sensor (2 of 9) 1 3. Release two tabs (callout 1), and then slide the de livery fan and cartr[...]

4. Pull the assembly slightly out of the product, disconnect two connectors (callout 1), and then remove the assembly. Figure 2-89 Remove the delivery fan, cartridge fan, and environmental sensor (4 of 9) 1 5. Remove one screw (callout 1), and then remove the cover (callout 2). Figure 2-90 Remove the delivery fan, cartridge fan, and environmental s[...]

6. Disconnect two connectors (callout 1), an d then remove the fans (callout 2). Figure 2-91 Remove the delivery fan, cartridge fan, and environmental sensor (6 of 9) 2 1 7. Remove the antistatic foam (callout 1). Figure 2-92 Remove the delivery fan, cartridge fan, and environmental sensor (7 of 9) 1 134 Chapter 2 Removal and replacement ENWW[...]

8. Release one tab (callout 1). Figure 2-93 Remove the delivery fan, cartridge fan, and environmental sensor (8 of 9) 1 9. Disconnect one connector (callout 1), and then remove the environmental sensor. CAUTION: ESD sensitive part. Figure 2-94 Remove the delivery fan, cartridge fan, and environmental sensor (9 of 9) 1 ENWW Internal assemblies 135[...]

Toner collection sensor Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Left cover. See Left cover on page 111 . Remove the toner collection sensor 1. Remove five screws (callout 1), and then remove the sheet-metal plate (callout 2). Figure 2-95 Remove the toner collection se[...]

3. Remove one screw (callout 1). Reinstallation tip When you reinstall the sensor, make su re that the tab (callout 2) on the sensor body completely engages the slot in the product chassis. Figure 2-97 Remove the toner collection sensor (3 of 4) 1 2 4. Remove the toner collection sensor. Figure 2-98 Remove the toner collection sensor (4 of 4) ENWW [...]

Residual toner feed motor Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Intermediate transfer belt (ITB). See Intermediate transfer belt (ITB) on page 98 . ● Left cover. See Left cover on page 111 . Remove the residual toner feed motor NOTE: Be careful. Do not dislodge th[...]

2. Remove the cover. Figure 2-100 Remove the residual toner feed motor (2 of 7) 3. Disconnect one connector (callout 1). Figure 2-101 Remove the residual toner feed motor (3 of 7) 1 ENWW Internal assemblies 139[...]

4. Support the assembly, and then re move two screws (callout 1). Figure 2-102 Remove the residual toner feed motor (4 of 7) 1 5. Be careful. Do not dislodge the residual toner collection door when you remove the assembly. If the door becomes dislodged, see Reinstall the residual toner collection door on page 142 to reinstall it. Figure 2-103 Remov[...]

6. Release two tabs (callout 1), and then push th e assembly into the product to release it. Figure 2-104 Remove the residual toner feed motor (6 of 7) 1 7. Remove the motor. Figure 2-105 Remove the residual toner feed motor (7 of 7) ENWW Internal assemblies 141[...]

Reinstall the residual toner collection door Snap the residual toner collection door into the hold ers on the assembly. Make sure that the spring is correctly installed. Figure 2-106 Reinstall the residual toner collection door 142 Chapter 2 Removal and replacement ENWW[...]

Registration density (RD) sensor assembly Before proceeding, remove the following components: ● Secondary transfer assembly. See Secondary transfer assembly on page 96 . ● Intermediate transfer belt (ITB). See Intermediate transfer belt (ITB) on page 98 . Remove the RD sensor assembly 1. Remove two screws (callout 1). Figure 2-107 Remove the RD[...]

2. Slide the shutter toward the right side of the product. Keep the shutter in this position for the following step. Figure 2-108 Remove the RD sensor assembly (2 of 6) 3. Carefully separate the assembly from the product. The assembly wire harnesses are still attached to the product. CAUTION: Do not damage the shutter as it passes through the chass[...]

4. Disconnect two connectors (callout 1) on the back side of the assembly. Figure 2-110 Remove the RD sensor assembly (4 of 6) 1 5. Push in on the locking tab to release the retainer (callout 1), and then separate the retainer from the assembly. NOTE: The retainer remains attached to the wire harness, and disengages from the assembly. Figure 2-111 [...]

6. Remove the assembly. Figure 2-112 Remove the RD sensor assembly (6 of 6) 146 Chapter 2 Removal and replacement ENWW[...]

Power supply fan and fan duct Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Right rear cover. See Right rear cover on page 109 . ● Left cover. See Left cover on page 111 . ● Rear cover and upper rear cover. See Rear cover and upper rear cover on page 124 . NOTE: It is n[...]

2. To remove the fan only : Release two tabs (callout 1), and then remove the fan from the fan duct. Reinstallation tip When the fan is reinstalled, the air must flow into the product. Look at the arrows embossed on the fan frame that indicate air flow direction. Figure 2-114 Remove the power supply fan (2 of 4) 1 3. To remove the fan and fan duct [...]

4. To remove the fan and fan duct : Release one tab (callout 1), and then remove the fan and fan duct (callout 2). Figure 2-116 Remove the power supply fan (4 of 4) 1 2 ENWW Internal assemblies 149[...]

Registration assembly Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Secondary transfer assembly. See Secondary transfer assembly on page 96 . ● Intermediate transfer belt (ITB). See Intermediate transfer belt (ITB) on page 98 . ● Right rear cover. See Right rear cover o[...]

2. Pull down on the cover to release one tab, an d then rotate the cover away from the product to remove it. Figure 2-118 Remove the registration assembly (2 of 8) 3. Release two green latches (callout 1), and then lower the feed guide. Reinstallation tip Make sure that the feed guide snaps into the closed position when you reinstall the registrati[...]

4. Remove three screws (callout 1). Figure 2-120 Remove the registration assembly (4 of 8) 1 5. Separate the assembly from the product, release one tab (callout 1), and then remove the cover (callout 2). CAUTION: The assembly is still attached to the product by the wire harnesses. Figure 2-121 Remove the registration assembly (5 of 8) 1 2 152 Chapt[...]

6. Disconnect one connector (callout 1), and then release the wire harness from the retainer. Figure 2-122 Remove the registration assembly (6 of 8) 1 7. Disconnect three connectors (callout 1) on the back side of the assembly, and then release the wires from the retainers. Figure 2-123 Remove the registration assembly (7 of 8) 1 ENWW Internal asse[...]

8. Remove the assembly. Reinstallation tip When you reinstall the registration asse mbly, make sure that it is correctly positioned in the product. The tabs on the assemb ly must fit into the slots in the product chassis and the assembly should fit securely up against the product chassis. Figure 2-124 Remove the registration assembly (8 of 8) 154 C[...]

Lower pickup guide Remove the lower pickup guide 1. Open the right Door. The lower pickup guide is directly below the registration assembly and is locked into place by 2 green circular knobs, one on each side of the upper portion of the guide. 1 ENWW Internal assemblies 155[...]

2. Press upward from below the on each knob at the same time to release the assembly. 1 3. Using a small straight edged screw driver, wedge the blade and press inward on the hinge pin on the lower right side of the assembly and then pull the assembly out of the hinge pin hole. 1 4. Remove the assembly by rotating it up an d away from the printer co[...]

Reinstall the lower pickup guide ▲ Put the lower left side of the parts axle into the hole in the sheet metal, slightly depress the right hinge pin, and then snap the pin back into the wh ole in the sheet metal. Rotate the lower pickup guide back into place toward the printer until the green knobs snap back into place. ENWW Internal assemblies 15[...]

Interconnect board (ICB) Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Formatter. See Formatter PCA on page 81 . ● Right rear cover. See Right rear cover on page 109 . ● Left cover. See Left cover on page 111 . ● Rear cover and upper rear cover. See Rear cover and upp[...]

2. Disconnect three connectors (callout 1). Figure 2-126 Remove the ICB (2 of 3) 1 3. Carefully rotate and slide the ICB up and away from the chassis to remove. Figure 2-127 Remove the ICB (3 of 3) ENWW Internal assemblies 159[...]

DC controller PCA and tray Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Formatter. See Formatter PCA on page 81 . ● Right rear cover. See Right rear cover on page 109 . ● Left cover. See Left cover on page 111 . ● Rear cover and upper rear cover. See Rear cover and u[...]

2. Disconnect all the connectors. Reinstallation tip The connector locations J133 and J134 are not used. Figure 2-129 Remove the DC controller PCA and tray (2 of 4) 3. Remove four screws (callout 1), and then remove the DC controller PCA. Figure 2-130 Remove the DC controller PCA and tray (3 of 4) 1 NOTE: If removing the DC controller to access ano[...]

4. If necessary, remove three screws (callout 1), re move the wire guide (callout 2), and then remove the sheet-metal tray. Figure 2-131 Remove the DC controller PCA and tray (4 of 4) 2 1 162 Chapter 2 Removal and replacement ENWW[...]

Low voltage power supply Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Formatter. See Formatter PCA on page 81 . ● Right rear cover. See Right rear cover on page 109 . ● Left cover. See Left cover on page 111 . ● Rear cover and upper rear cover. See Rear cover and upp[...]

2. Push in on the locking tab to release the retainer (callout 1), and then separate the retainer from the assembly. NOTE: The retainer remains attached to the wire harness, and disengages from the assembly. Figure 2-133 Remove the low voltage power supply (2 of 7) 1 3. Remove seven screws (callout 1). NOTE: The illustration below shows the ICB rem[...]

4. Remove two screws (callout 1). Figure 2-135 Remove the low voltage power supply (4 of 7) 1 5. Release one tab (callout 1), and then rotate the formatter cage away from the top of the product. Figure 2-136 Remove the low voltage power supply (5 of 7) 1 ENWW Internal assemblies 165[...]

6. Remove the assembly. Figure 2-137 Remove the low voltage power supply (6 of 7) 7. Remove three screws (callout 1), and then separa te the formatter cage from the low voltage power supply. NOTE: If you are removing the power supply for internal product access, you can leave the formatter cage installed on the power supply chassis. Figure 2-138 Re[...]

High voltage power supply lower (HVPS-D) Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Formatter. See Formatter PCA on page 81 . ● Right rear cover. See Right rear cover on page 109 . ● Left cover. See Left cover on page 111 . ● Rear cover and upper rear cover. See Re[...]

2. Use a small flat blade screwdri ver to carefully remove four locking clips (callout 1). CAUTION: Do not damage the PCA with the screwdriver. Figure 2-140 Remove the high voltage power supply lower (2 of 4) 1 3. Disconnect one connector (callout 1; J114), and then release four clips (callout 2). NOTE: To locate DC controller connector locations, [...]

4. Rotate the top of the power supply away from th e chassis, and then disconnect one connector (callout 1). Remove the power supply. Reinstallation tip Make sure the cables do not get st uck behind or damaged by the sheet metal. Figure 2-142 Remove the high voltage power supply lower (4 of 4) 1 Reinstall the high voltage power supply lower When yo[...]

Developing disengagement motor Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Formatter. See Formatter PCA on page 81 . ● Right rear cover. See Right rear cover on page 109 . ● Left cover. See Left cover on page 111 . ● Rear cover and upper rear cover. See Rear cover a[...]

2. Remove the motor. Figure 2-145 Remove the developing disengagement motor (2 of 2) ENWW Internal assemblies 171[...]

Pickup motor Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Formatter. See Formatter PCA on page 81 . ● Right rear cover. See Right rear cover on page 109 . ● Left cover. See Left cover on page 111 . ● Rear cover and upper rear cover. See Rear cover and upper rear cove[...]

Lifter drive assembly Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Formatter. See Formatter PCA on page 81 . ● Right rear cover. See Right rear cover on page 109 . ● Left cover. See Left cover on page 111 . ● Rear cover and upper rear cover. See Rear cover and upper [...]

2. Remove five screws (callout 1), disconnect two connectors (callout 2), release the wire harness from the retainers (callout 3), and then remove the assembly. Figure 2-148 Remove the lifter drive assembly (2 of 2) 1 2 3 174 Chapter 2 Removal and replacement ENWW[...]

Automatic close assembly Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Formatter. See Formatter PCA on page 81 . ● Right rear cover. See Right rear cover on page 109 . ● Left cover. See Left cover on page 111 . ● Rear cover and upper rear cover. See Rear cover and upp[...]

Cassette pickup drive assembly Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Formatter. See Formatter PCA on page 81 . ● Right rear cover. See Right rear cover on page 109 . ● Left cover. See Left cover on page 111 . ● Rear cover and upper rear cover. See Rear cover a[...]

2. Disconnect six connectors (callout 1; J106, J107, J108, J137, J138, J140). NOTE: To locate DC controller connector locations, see DC controller PCA on page 284 . Figure 2-151 Remove the cassette pickup drive assembly (2 of 10) 3 1 3. Disconnect one connector (callout 1; J119), remo ve one screw (callout 2), and then release the wire harness from[...]

4. Release one tab (callout 1), and then re move the fan and fan duct (callout 2). Figure 2-153 Remove the cassette pickup drive assembly (4 of 10) 1 2 5. Disconnect five connectors (callout 1; J110, J 111 on the DC controller PCA), release the FFCs from the guide (callout 2), and then rele ase the wire harnesses from the guides. NOTE: To locate DC[...]

6. Release one tab (callout 1), and then remove the guide. Figure 2-155 Remove the cassette pickup drive assembly (6 of 10) 1 7. Release one tab (callout 1), and then remove the guide. Figure 2-156 Remove the cassette pickup drive assembly (7 of 10) 1 ENWW Internal assemblies 179[...]

8. Remove two screws (callout 1), and then re move the high voltage bracket (callout 2). Figure 2-157 Remove the cassette pickup drive assembly (8 of 10) 2 1 9. Remove three screws (callout 1). Figure 2-158 Remove the cassette pickup drive assembly (9 of 10) 1 180 Chapter 2 Removal and replacement ENWW[...]

10. Carefully remove the assembly. CAUTION: The gears, arm, and spring on the assemb ly are not captive. Use your finger to secure the arm and spring as you remove the as sembly. If the gears, arm, or spring become dislodged, see Reinstall the cassette pickup drive assembly on page 181 . Figure 2-159 Remove the cassette pickup drive assembly (10 of[...]

2. Make sure that the spring (ca llout 1) is correctly installed. Figure 2-161 Reinstall the cassette pic kup drive assembly (2 of 3) 1 3. Make sure that the gears, arm, and spring are correctly installed. Figure 2-162 Reinstall the cassette pic kup drive assembly (3 of 3) 182 Chapter 2 Removal and replacement ENWW[...]

Cassette pickup assembly Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Formatter. See Formatter PCA on page 81 . ● Secondary transfer unit. See Secondary transfer assembly on page 96 . ● Intermediate transfer belt. See Intermediate transfer belt (ITB) on page 98 . ● R[...]

Remove the cassette pickup assembly 1. Release one tab (callout 1), and th en remove the gear (callout 2). Figure 2-163 Remove the cassette pi ckup assembly (1 of 3) 2 1 2. Remove two screws (callout 1). Figure 2-164 Remove the cassette pi ckup assembly (2 of 3) 1 184 Chapter 2 Removal and replacement ENWW[...]

3. Remove the assembly. Figure 2-165 Remove the cassette pi ckup assembly (3 of 3) ENWW Internal assemblies 185[...]

Laser/scanner assembly (Y/M) Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Formatter. See Formatter PCA on page 81 . ● Right rear cover. See Right rear cover on page 109 . ● Left cover. See Left cover on page 111 . ● Rear cover and upper rear cover. See Rear cover and[...]

2. Disconnect the in-line one connector (callout 1) , and then release the wire harnesses from the guide (callout 2). Figure 2-167 Remove the laser/scanner assembly (Y/M) (2 of 12) 2 1 3. Release one tab (callout 1), and th en remove the guide (callout 2). Figure 2-168 Remove the laser/scanner assembly (Y/M) (3 of 12) 2 1 ENWW Internal assemblies 1[...]

4. Remove one screw (callout 1), and then remove the cover (callout 2). Figure 2-169 Remove the laser/scanner assembly (Y/M) (4 of 12) 2 1 5. Disconnect one FFC (callout 1), and th en release one spring (callout 2). CAUTION: The spring is not captive. Do not lose th e spring when it is removed. Use a pair of needle-nose pliers to safely retain the [...]

6. Disconnect six connectors (callout 1). NOTE: Disconnect the larger connector on the righ t side from the bottom. Disconnect the two smaller connectors on the right side from the top. Figure 2-171 Remove the laser/scanner assembly (Y/M) (6 of 12) 1 7. Release two tabs (callout 1), and then slide the fan assembly toward the power-supply side of th[...]

8. Pull the fan assembly slightly ou t of the product, disconnect two connectors (callout 1), and then remove the assembly. Figure 2-173 Remove the laser/scanner assembly (Y/M) (8 of 12) 1 9. Remove one screw (callout 1), and then release one spring (callout 2). CAUTION: The spring is not captive. Do not lose th e spring when it is removed. Use a p[...]

10. Remove the toner collection sensor. Figure 2-175 Remove the laser/scanner assembly (Y/M) (10 of 12) 11. Rotate the front of the laser/scanner assembly down (callout 1), and then slide it toward the right (callout 2). Lower the left corner, and then rotate the left corner out of the product (callout 3). Figure 2-176 Remove the laser/scanner asse[...]

12. Pull the laser/scanner assembly straig ht out of the product to remove it. Figure 2-177 Remove the laser/scanner assembly (Y/M) (12 of 12) 192 Chapter 2 Removal and replacement ENWW[...]

Laser/scanner assembly (C/Bk) Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Formatter. See Formatter PCA on page 81 . ● Right rear cover. See Right rear cover on page 109 . ● Left cover. See Left cover on page 111 . ● Rear cover and upper rear cover. See Rear cover an[...]

Remove the laser/scanner assembly (C/Bk) 1. Release one spring (callout 1), and then disconnect one connector (callout 2). CAUTION: The spring is not captive. Do not lose th e spring when it is removed. Use a pair of needle-nose pliers to safely retain the spring when it is removed. Do not use a flat blade screwdriver to remove the spring; the spri[...]

3. Remove two screws (callout 1) located below the front door. Figure 2-180 Remove the laser/scanner assembly (C/Bk) (3 of 7) 1 4. Open the front door, and then remove one sc rew (callout 1) and th e cover (callout 2). Figure 2-181 Remove the laser/scanner assembly (C/Bk) (4 of 7) 1 2 ENWW Internal assemblies 195[...]

5. Remove two screws (callout 1). Use your finger to release the locking tab (callout 2), and then remove the cover. CAUTION: Be careful. The PGC actuators are easily dislodged when the cover is removed. See Figure 2- 185 Reinstall the PGC actuators (1 of 5) on page 198 . To reinstall the actuators, see Reinstall the protective glass cleaner (PGC) [...]

6. Release one spring (callout 1). CAUTION: The spring is not captive. Do not lose th e spring when it is removed. Use a pair of needle-nose pliers to safely retain the spring when it is removed. Do not use a flat blade screwdriver to remove the spring; the spring co uld forcibly leave the product and strike you. Reinstallation tip When you reinsta[...]

7. Rotate the corner of the assembly away from the product until you can see the PCA, and then remove the assembly from the product. Reinstallation tip When the laser/scanner is properly po sitioned in the chassis, the plastic parts which protrude at the front and rear of the product will be firmly seated against the locator tabs on the chassis. Ve[...]

2. Remove the actuator and spring from the pr oduct. Install the spring on the actuator. Figure 2-186 Reinstall the PGC actuators (2 of 5) 3. Before proceeding, take note of the following: ● Callout 1 : The pin on the actuator will be in stalled into the slot in the chassis. ● Callout 2 : The pin on the pivot arm will be inst alled into the slo[...]

4. Place the end of the actuator into the PGC rod, and then use a small flat blade screw driver to fasten the end of the spring on the tab on the chassis. Figure 2-188 Reinstall the PGC actuators (4 of 5) 5. Push down on the actuator to seat it into place. Verify that the actuators is correctly installed. The PGC actuator should freely move wh en y[...]

High voltage power supply upper (HVPS-T) Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Formatter. See Formatter PCA on page 81 . ● Right rear cover. See Right rear cover on page 109 . ● Left cover. See Left cover on page 111 . ● Hardware integration pocket (HIP). See [...]

Remove the high voltage power supply upper CAUTION: ESD sensitive part. NOTE: If the sheet-metal tray was removed with the DC controller, begin at step 3. 1. Remove one screw (callout 1). Figure 2-190 Remove the high voltage power supply upper (1 of 5) 1 2. Remove three screws (callout 1), and then ro tate the sheet-metal plate away from the power [...]

3. Duplex models only : Disconnect one connector (callout 1). Figure 2-192 Remove the high voltage power supply upper (3 of 5) 1 4. Remove three screws (callout 1). Figure 2-193 Remove the high voltage power supply upper (4 of 5) 1 ENWW Internal assemblies 203[...]

5. Release four tabs (callout 1), and then remove the power supply. Figure 2-194 Remove the high voltage power supply upper (5 of 5) 1 204 Chapter 2 Removal and replacement ENWW[...]

Reinstall the high voltage power supply upper When you reinstall the power supply, look through the holes in the PCA and make sure that the high voltage contact springs are correctly seated against the PCA. NOTE: For a replacement power supply, remove one wire harness (callout 1) and then install it on the replacement power supply. Figure 2-195 Rei[...]

Drum motor 1 Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Formatter PCA. See Formatter PCA on page 81 . ● Right rear cover. See Right rear cover on page 109 . ● Left cover. See Left cover on page 111 . ● Hardware integration pocket (HIP). See Hardware integration poc[...]

Remove the drum motor 1 ▲ Disconnect one connector (callout 1), remove four screws (callout 2), and then remove the motor. Figure 2-196 Remove the drum motor 1 2 1 ENWW Internal assemblies 207[...]

Drum motor 2 or drum motor 3 Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Formatter PCA. See Formatter PCA on page 81 . ● Right rear cover. See Right rear cover on page 109 . ● Left cover. See Left cover on page 111 . ● Hardware integration pocket (HIP). See Hardware[...]

Remove the drum motor 2 or drum motor 3 ▲ Do one of the following: ● Remove drum motor 2: Disconnect one connector (callout 1), remove four screws (callout 2), and then remove the motor. ● Remove drum motor 3: Disconnect one connector (callout 3), remove four screws (callout 4), and then remove the motor. Figure 2-197 Remove the drum motor 2 [...]

Fuser motor Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Formatter. See Formatter PCA on page 81 . ● Right rear cover. See Right rear cover on page 109 . ● Left cover. See Left cover on page 111 . ● Hardware integration pocket (HIP). See Hardware integration pocket ([...]

Remove the fuser motor Disconnect one connector (callout 1), remove thr ee screws (callout 2), and then remove the motor. Figure 2-198 Remove the fuser motor 2 1 ENWW Internal assemblies 211[...]

Main drive assembly Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Formatter. See Formatter PCA on page 81 . ● Fuser. See Fuser on page 87 . ● Secondary transfer assembly. See Secondary transfer assembly on page 96 . ● Intermediate transfer belt (ITB). See Intermediate[...]

Remove the main drive assembly 1. Remove two screws (callout 1), and then remove the cover (callout 2). Figure 2-199 Remove the main drive assembly (1 of 7) 1 2 2. Release the wire harnesses from the guide (callo ut 1), and then remove one screw (callout 2). Figure 2-200 Remove the main drive assembly (2 of 7) 2 1 ENWW Internal assemblies 213[...]

3. Lift the high voltage bracket up to re lease it, and then remove the bracket. Figure 2-201 Remove the main drive assembly (3 of 7) 4. Disconnect seven connectors (callout 1), and th en release the wire harnesses from the guides. Figure 2-202 Remove the main drive assembly (4 of 7) 1 214 Chapter 2 Removal and replacement ENWW[...]

5. Remove two screws (callout 1), and then remove the sheet-metal plates (callout 2). Figure 2-203 Remove the main drive assembly (5 of 7) 1 2 6. Release the FFCs and lower wiring harness from th e guide, and then release one tab (callout 1) and remove the guide. Figure 2-204 Remove the main drive assembly (6 of 7) 1 ENWW Internal assemblies 215[...]

7. Remove ten screws (callout 1), and then carefully remove the assembly. CAUTION: Be careful when you remove the assemb ly. The cams on the backside of the assembly can be dislodged. If th e cams become dislodged, install them on the shafts as shown in Figure 2- 207 Reinstall the main drive assembly (2 of 11) on page 217 . The black cam must be in[...]

Reinstall the main drive assembly 1. Remove the bracket (callout 1), two guides (cal lout 2), and the developing disengagement motor (callout 3). Install the bracket and guides on the replacement main drive assembly. NOTE: Do not install the developing disengagement motor on the assembly (this motor must be removed from the assembly to align the ma[...]

3. Slowly rotate the shaft near the black cam. WARNING! Do not touch the plastic gears or cams. Yo u must not wipe away any of the grease that is applied to these components. Always rota te the gears and cams by rotating the metal drive shaft. Figure 2-208 Reinstall the main drive assembly (3 of 11) 4. Continue to rotate the shaft until the holes i[...]

5. Verify that the cams (callout 1) align correctly. TIP: The second cam in from the right (the white cam to the left of the black cam), should have the second hole aligned with the hole in the sheet-metal chassis. The third cam in from the right, should have the third hole aligned with the hole in the sheet-metal chassis. The fourth cam in from th[...]

6. When the cams align correctly, they easi ly fit into the holes in the chassis. Figure 2-211 Reinstall the main drive assembly (6 of 11) 7. When the assembly is placed on the chassis, the pin on the swing gear and on the bracket (callout 1), must align with the holes in the chassis (callout 2). Figure 2-212 Reinstall the main drive assembly (7 of[...]

8. Position the assembly on the chassis. Figure 2-213 Reinstall the main drive assembly (8 of 11) 9. Use your finger to push in on the assembly, and us e a small flat blade screwdriver to align the pin on the swing gear with the hole in the chassis. Figure 2-214 Reinstall the main drive assembly (9 of 11) ENWW Internal assemblies 221[...]

10. When the assembly is correctly installed agai nst the chassis, the pin above the swing gear protrudes through the hole in the chassis. Figure 2-215 Reinstall the main drive assembly (10 of 11) 11. Install the main drive assembly mounting screws, and then reinstall the developing disengagement motor (callout 1). TIP: After reassembling the produ[...]

Fuser drive assembly Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Formatter. See Formatter PCA on page 81 . ● Fuser. See Fuser on page 87 . ● Secondary transfer assembly. See Secondary transfer assembly on page 96 . ● Right rear cover. See Right rear cover on page 10[...]

Remove the fuser drive assembly 1. Disconnect one connector (callout 1), and then release the wire harnesses from the guide (callout 2). Figure 2-217 Remove the fuser drive assembly (1 of 6) 2 1 2. Remove two screws (callout 1), and then remove the guide (callout 2). Figure 2-218 Remove the fuser drive assembly (2 of 6) 1 2 224 Chapter 2 Removal an[...]

3. Remove one screw (callout 1), and then remove the sheet-metal plate (callout 2). Figure 2-219 Remove the fuser drive assembly (3 of 6) 2 1 4. Remove one screw (callout 1), and then remove the cover (callout 2). Figure 2-220 Remove the fuser drive assembly (4 of 6) 2 1 ENWW Internal assemblies 225[...]

5. Remove five screws (callout 1). Figure 2-221 Remove the fuser drive assembly (5 of 6) 1 6. Carefully remove the assembly. CAUTION: A gear on the assembly is not captive. Do not lose the gear when you remove the assembly. If the gear becomes dislodged, see Reinstall the fuser drive assembly on page 227 . Figure 2-222 Remove the fuser drive assemb[...]

Reinstall the fuser drive assembly If the gear (callout 1) is dislodged when the asse mbly is removed, use the figure below to correctly install it on the assembly. Figure 2-223 Reinstall the fuser drive assembly 1 ENWW Internal assemblies 227[...]

Delivery assembly Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Formatter PCA. See Formatter PCA on page 81 . ● Fuser. See Fuser on page 87 . ● Secondary transfer assembly. See Secondary transfer assembly on page 96 . ● Intermediate transfer belt (ITB). See Intermedia[...]

Remove the delivery assembly 1. Remove two screws (callout 1), and then remove the guide (callout 2). Figure 2-224 Remove the delivery assembly (1 of 5) 1 2 2. Remove two screws (callout 1). Figure 2-225 Remove the delivery assembly (2 of 5) 1 ENWW Internal assemblies 229[...]

3. Release one tab (callout 1), and th en remove the gear (callout 2). Figure 2-226 Remove the delivery assembly (3 of 5) 2 1 4. Release one tab (callout 1), and then rotate the lock ing clip until the tab on the clip aligns with the slot in the chassis. Figure 2-227 Remove the delivery assembly (4 of 5) 1 230 Chapter 2 Removal and replacement ENWW[...]

5. Disconnect one connector (callout 1), remove two screws (callout 2), and then carefully lift the assembly (callout 3) off of the product to remove it. CAUTION: A solenoid arm (duplex models only; on the right side) and a spring (on the left side) on the assembly are not captive. Do not lo se the solenoid arm or spring when you remove the assembl[...]

Reinstall the delivery assembly 1. Duplex models only : Make sure that the solenoid arm is correctly installed on the assembly. Figure 2-229 Reinstall the delivery assembly (1 of 2) 2. Make sure that the spring is co rrectly installed on the assembly. Figure 2-230 Reinstall the delivery assembly (2 of 2) 232 Chapter 2 Removal and replacement ENWW[...]

Duplex drive assembly Before proceeding, remove the following components: ● Toner collection unit. See Toner collection unit on page 79 . ● Formatter PCA. See Formatter PCA on page 81 . ● Fuser. See Fuser on page 87 . ● Secondary transfer assembly. See Secondary transfer assembly on page 96 . ● Intermediate transfer belt (ITB). See Interm[...]

Remove the duplex drive assembly 1. Disconnect two connectors (callout 1), and then remove three screws (callout 2). Figure 2-231 Remove the duplex dr ive assembly (1 of 2) 2 1 2. Remove the assembly. Figure 2-232 Remove the duplex dr ive assembly (2 of 2) 234 Chapter 2 Removal and replacement ENWW[...]

Optional paper feeder assembly (Tray 3) NOTE: For information about removing the Tray 3 pickup roller, see Pickup and feed rollers (Tray 3) on page 91 . For information about removing the Tray 3 cassette, see Tray cassette on page 86 . For information about removing the righ t door (optional paper feeder), see Right door (optional paper feeder) on [...]

2. Remove one connector (callout 1). Figure 2-233 Remove the drawer conn ector; optional paper feeder 1 236 Chapter 2 Removal and replacement ENWW[...]

3 Solve problems To use the information in this chapter, you shou ld have a basic understanding of the HP LaserJet printing process. Explanations of each mechanical assembly, the printer systems, and the basic theory of operation are contained in the English-langua ge service manual. Do not perform any of these troubleshooting processes unless you [...]

Solve problems checklist If the product is not responding correctly, complete th e steps in the following checklist, in order. If the product does not pass a step, foll ow the corresponding troubleshooting suggestions. If a step resolves the problem, you can stop without perfor ming the other steps on the checklist. 1. Make sure one of the followin[...]

8. Verify that you have installed the HP LaserJet En terprise 500 color M551 printer driver. Check the program to make sure that you are using th e HP LaserJet Enterprise 500 color M551 printer driver. 9. Print a short document from a different program that has worked in the past. If this solution works, the problem is with the program that you are[...]

Menu map Print the menu maps 1. At the control panel, press the Home button. 2. Open the following menus: ● Administration ● Reports ● Configuration/Status Pages 3. Use the Down arrow to highlight the Administration Menu Map item, and then press the OK button to select it. 4. Use the Up arrow button to highlight the Print item, and then press[...]

Current settings pages Printing the current settings pages provides a map of th e user configurable settings that might be helpful in the troubleshooting process. Print the current settings pages 1. At the control panel, press the Home button. 2. Open the following menus: ● Administration ● Reports ● Configuration/Status Pages 3. Use the Down[...]

Preboot menu options If an error occurs while the produc t is booting, an error message appears on the control-panel display. The user can access the Preboot menus. The Error menu item will not be seen if an error did not occur. CAUTION: The Clean Disk option performs a disk initializati on for the entire disk. The operating system, firmware files,[...]

Troubleshooting process Determine the problem source When the product malfunctions or encounters an un expected situation, the product control panel alerts you to the situation. This sectio n contains a pre-troubleshooting chec klist to filter out many possible causes of the problem. A troubleshooting flowchar t helps you diagnose the root cause of[...]

Table 3-1 Troubleshooting flowchart (continued) 4 Information pages Open the Reports menu and print the configuration pages to verify that all the accessories are installed. Are all the accessories installed? If accessories that are installed ar e not listed on the configuration page, remove the access ory and reinstall it. After evaluating the con[...]

and then performing the engine test again. If the engine test is then successful, the problem is almost certainly with the formatter, the control pa nel, or the cable that connects them. If the control panel is blank when you turn on the product, check the following items. 1. Make sure that the product is plugged directly in to an active electrical[...]

Tools for troubleshooting The section describes the tools that can he lp you solve problems with your device. Individual component diagnostics LED diagnostics LED, engine, and individual diagnostics can identify and troubleshoot product problems. Understand lights on the formatter Three LEDs on the formatter indicate that the product is functioning[...]

Formatter to control panel communication interruptions ● The firmware does not fully initialize an d configure the control panel interface. ● The control panel is not functioning (eithe r a failed component or power problem). ● Interface cabling between the formatter and control panel is damaged or disconnected. TIP: If the heartbeat LED is i[...]

Table 3-2 Heartbeat LED, product initialization (continued) Product initializing state Heartbeat LED, normal state H eartbeat LED, error state HW checks on board DRAM Green, solid Red, solid ● Power on self check failure ◦ Boot process halted Replace the formatter. Control panel connection initializes Green, solid NOTE: Control panel communicat[...]

Table 3-2 Heartbeat LED, product initialization (continued) Product initializing state Heartbeat LED, normal state H eartbeat LED, error state Control panel connection interrupted after the product is operational Not applicable Yellow, fast flash ● Control panel not connected Sleep mode Green, slow blink Not applicable Approaching Sleep mode Gree[...]

Table 3-3 Heartbeat LED, produc t operational (continued) LED color Description Red ● Formatter error or failure ◦ Serial peripheral interface (S PI) flash memory boot error ◦ Power on self test (formatter) failed ◦ Diagnostic (formatter) failed Off TIP: The connectivity LED is off if the power cord is unplugged, the product power switch is[...]

NOTE: When the initialization process completes the connectivity LED should be illuminated solid green—the LED is off if the product is in Sleep mode If after initialization the connect ivity LED is not solid green, see Connectivity LED, product operating on page 252 . Table 3-4 Connectivity LED, product initialization Product initializing state [...]

Table 3-4 Connectivity LED, produc t initialization (continued) Product initializing state Connectivity LED, normal stat e Connectivity LED, error state Accessing disk for firmware image Green, solid NOTE: If applicable, disk error messages appear on the control-panel display. Yellow, fast flash ● Control panel not connected Firmware boot Green, [...]

Table 3-5 Connectivity LED, product operational LED color Description Green ● Normal operation ◦ Formatter is operating normally ◦ Firmware is operating normally ◦ Control panel is connected Yellow ● Formatter cannot connect to the control panel ◦ Check control pan el connections ◦ Verify control pan el functionality Red ● Formatter[...]

5. Press the Down arrow button to highlight the Link Speed menu, and then press the OK button. 6. Select the appropriate link speed, and then press the OK button. Engine diagnostics This section provides an overview of the engine diagnostics that are available in the HP LaserJet Enterprise 500 color M551 product. The product cont ains extensive int[...]

2. Locate the slots on the righ t and front of the product. Figure 3-1 Diagnostic test (1 of 3) Figure 3-2 Diagnostic test (2 of 3) ENWW Tools for troubleshooting 255[...]

3. Insert a folded piece of paper into each slot at the same time until the product is in a Ready state. Figure 3-3 Diagnostic test (3 of 3) Disable cartridge check Use this diagnostic test to print internal pages or send an external jo b to the product when one or more print cartridges are removed or exchanged. Consumabl e supply errors are ignore[...]

Engine test button To verify that the product engine is functioning, pr int an engine test page. Use a small pointed object to depress the test-page switch located on the rear of the product. The test page should have a series of horizontal lines. The test page can use only Tray 2 as the paper source, so make sure that paper is loaded in Tray 2. Fi[...]

Paper path test This diagnostic test generates one or more test pa ges that you can use to isolate the cause of jams. To isolate a problem, specify which input tray to use, specify whether to use the duplex path, and specify the number of copies to print. Multiple copies can be printed to help isolate intermittent problems. The following options be[...]

3. Press the Down arrow button to highlight the Paper Path Sensors option, and then press the OK button. 4. Select Start Test . Press the Down arrow button to see the test results. NOTE: Exiting the Paper-path sensor test menu and then reentering it will clear the test values from the previous test. Viewing the sensor status before you activate the[...]

Manual sensor test Use this diagnostic test to manually test the product sensors and switches. Each sensor is represented by a letter and number on the control panel display. 1. Press the Home button. 2. Open the following menus: ● Administration ● Troubleshooting ● Diagnostic Tests 3. Press the Down arrow button to highlight the Manual Senso[...]

Registration sensor 1. Open the right door. 2. Open the registration shutter. 3. Insert a piece of paper to activate the TOP sensor. Figure 3-5 Test the registration sensor 4. Check the control-panel display for sensor response. 5. If no response, replace the registration assembly. ENWW Tools for troubleshooting 261[...]

Fuser loop sensors 1. Open the right door. 2. Lower the secondary transfer assembly. 3. Slowly insert a piece of paper to activate the fuser loop sensors underneath the fuser. Figure 3-6 Test the fuser loop sensors 4. Check the control-panel disp lay for a sensor response. 5. If there is no response, replace fuser. See Fuser on page 87 . 262 Chapte[...]

Fuser output sensor 1. Open the right door. 2. Lower the secondary transfer assembly. 3. Remove the fuser assembly, and then verify that the sensor flag on the fuser assembly moves freely. If the sensor flag does not move freely, replace the fuser. See Fuser on page 87 . Figure 3-7 Test the fuser output sensor (1 of 2) 4. Insert a piece of paper to[...]

Duplexer refeed sensor 1. Open the right door. 2. Use the green handle to lift the duplex jam cover. 3. Insert a piece of paper to activate the sensor (8492). Figure 3-9 Test the duplexer refeed sensor 4. Check the control-panel disp lay for sensor response. 5. If no response, replace the right door assembly. 264 Chapter 3 Solve problems ENWW[...]

Output-bin full sensor NOTE: Upper-front cover has b een removed for clarity. 1. Open the right door. 2. Lower the secondary transfer assembly. 3. Remove the fuser. 4. Move the output-bin full sensor flag. Figure 3-10 Test the output-bin-full sensor 5. Check the control-panel display for sensor response. 6. If no response, remove the control panel [...]

Fuser pressure-release sensor 1. Open the right door. 2. Lower the secondary transfer assembly. 3. Remove the fuser, and then rotate the gear (callout 1) to move the flag (callout 2). If the flag does not actuate, replace the fuser. Figure 3-11 Test the fuser pressure-release sensor (1 of 2) 2 1 4. Insert a piece of paper to activate the fuser pres[...]

ITB alienation sensor 1. Open the right door. 2. Lower the secondary transfer assembly. 3. Remove the ITB. 4. Rotate the gear (callout 1) to move the flag (callo ut 2). If the flag does not actuate, replace the ITB. Figure 3-13 Test the ITB alienation sensor (1 of 2) 1 2 5. Remove all print cartridges. NOTE: Cover all removed print cartridges with [...]

7. Insert a piece of paper to acti vate the ITB alienation sensor. Figure 3-14 Test the ITB alienation sensor (2 of 2) 8. Check the control-panel disp lay for sensor response. 9. If no response, replace the sensor. 268 Chapter 3 Solve problems ENWW[...]

Right- and front-door interlock switches 1. Open the right door (callout 1) to dise ngage the right-door switch (callout 2). Figure 3-15 Test the right- and front-d oor interlock switches (1 of 4) 2 1 2. Close the right door and check the control panel on the product for sensor response. 3. Open the front door (callout 3) to dise ngage the front-do[...]

6. Close the right door and front door to verify that the switches close. Figure 3-17 Test the right- and front-d oor interlock switches (3 of 4) 7. Open the right door and front door to verify that the switches open. Figure 3-18 Test the right- and front-d oor interlock switches (4 of 4) 8. If the switches do not close, check th e connectors on th[...]

Tray/bin manual sensor test Use this test to test paper-path sensors and the paper- size switches manually. The following illustrations and table show the locations of these sensors. 1. Press the Home button. 2. Open the following menus: ● Administration ● Troubleshooting ● Diagnostic Tests 3. Press the Down arrow button to highlight the Manu[...]

Tray 1 paper sensor 1. Open Tray 1. 2. Move the Tray 1 paper sensor flag. Figure 3-19 Test the Tray 1 paper sensor 3. Check the control-panel disp lay for sensor response. 4. If no response, replace Tray 1. 272 Chapter 3 Solve problems ENWW[...]

Tray 2 paper sensor 1. Remove Tray 2. 2. Move the Tray 2 paper sensor flag. Figure 3-20 Test the Tray 2 paper sensor 3. Check the control-panel display for sensor response. 4. If there is no response, repl ace the Tray 2 paper-out sensor. ENWW Tools for troubleshooting 273[...]

Tray 2 cassette sensor 1. Remove Tray 2. NOTE: The Tray 2 Cassette sensor flag is on the back of Tray 2. Inspect the flag to verify that it is aligned correctly. If it is bent upwa rd, it might miss the sensor when installed. Figure 3-21 Test the Tray 2 ca ssette sensor (1 of 2) 2. Insert a piece of paper in the Tray 2 cassette sensor. Figure 3-22 [...]

Tray 2 cassette lifter sensor 1. Remove Tray 2. 2. In the Tray 2 cavity, insert a piece of paper in the Tray 2 cassette lifter sensor. Figure 3-23 Test the Tray 2 cassette lifter sensor 3. Check the control-panel display for sensor response. 4. If no response, replace the lifter-drive assembly. ENWW Tools for troubleshooting 275[...]

Tray 3 empty sensor 1. Remove the optional Tray 3 cassette. 2. Move the optional Tray 3 empty sensor flag. Figure 3-24 Test the optional Tray 3 empty sensor 3. Check the control-panel disp lay for sensor response. 4. If no response, replace the optional Tray 3. 276 Chapter 3 Solve problems ENWW[...]

Tray 3 media feed sensor 1. Open the right door on optional Tray 3. 2. Insert a piece of paper to activate the optional Tray 3 media feed sensor Figure 3-25 Test the optional Tr ay 3 media feed sensor 3. Check the control-panel display for sensor response. 4. If there is no response, re place the optional Tray 3. ENWW Tools for troubleshooting 277[...]

Tray 3 stack surface sensor 1. Remove the optional Tray 3 cassette. 2. Push the lever to activate the sensor arms. Figure 3-26 Test the optional Tray 3 stack surface sensor 3. If there is no response, re place the optional Tray 3. 278 Chapter 3 Solve problems ENWW[...]

Tray 3 media size sensors 1. Push any of the three buttons to see if the co ntrol panel changes for sensors S, T or U. ● S: top button on size switch ● T: middle button on size switch ● U: bottom button on size switch Figure 3-27 Test the optional Tray 3 media size sensors 2. If any of the tests fail, replace the 500-sheet feeder. Print/stop [...]

Component tests Component test (special-mode test) This test activates individual parts independently to isolate problems. Each component test can be performed once or repeatedly. If you turn on the Repeat option from the drop-down menu, the test cycles the component on and off. This process contin ues for two minutes, and then the test terminates.[...]

Table 3-9 Component test details (continued) Component test Motor or solenoid numb er Comments Fuser Motor M2 Activate the fuser motor at a specified speed for 10 seconds. Fuser Pressure Release Motor M2 reverse Reverses the fuser motor and pressurizes or depressurizes th e pressure release motor. Alienation Motor M10 Activates CMYK developer alien[...]

Diagrams Block diagrams Figure 3-28 Sensors Table 3-10 Sensors Component abbreviation Component name SR1 Tray 3 paper surface sensor 1 SR2 Tray 3 paper surface sensor 2 SR3 Tray 3 paper sensor SR4 Tray 3 feed sensor SR5 Fuser output 282 Chapter 3 Solve problems ENWW[...]

Table 3-10 Sensors (continued) Component abbreviation Component name SR6 Output bin full SR7 Fuser pressure release SR8 Registration SR9 Tray 2 cassette lifter SR10 Paper width 1 SR11 Developer alienation SR13 Tray 2 cassette sensor SR14 Fuser loop 1 SR15 Fuser loop 2 SR17 ITB alienation SR20 Tray 2 paper SR21 Tray 1 paper SR22 Duplexer refeed (HP [...]

Location of connectors DC controller PCA Figure 3-29 DC controller PCA J126 J141 J100 : 24 v from low-voltage power supply (LVPS) and interlock J114 : HVPS lower J126 : memory tag connector J101 : LVPS J115 : fuser sensors J127 : pre-exposure LEDs (rear), SR17, SL1 J105 : interconnect board (ICB) J116 : HVPS upper J130 : registration den sity (RD) [...]

J112 : pre-exposure LEDs (front) J123 : pressure release, bin full, fuser delivery J140 : tray present, stack surface (lifter drive assembly) J113 : 24 v to high-voltage power supply (HVPS) upper J141 : lifter motor, media width sensor (lifter drive assembly; auto close assembly) Paper feeder driver PCA Figure 3-30 Paper feeder driver PCA J401 : en[...]

Plug/jack locations 3 2 1 1 USB port for a third-party device 2 Hi-speed USB 2.0 printing port 3 RJ-45 network port Locations of major components Use the diagrams to locate componen ts. For a list of components, see Table 3- 13 PCAs, motors, fans, switches, solenoids, and clutches on page 291 Base product Figure 3-31 Component locations (1 of 6) 1 [...]

Figure 3-32 Component locations (2 of 6) 2 3 4 5 6 7 8 ENWW Tools for troubleshooting 287[...]

Figure 3-33 Component locations (3 of 6) 10 9 11 12 13 14 288 Chapter 3 Solve problems ENWW[...]

Figure 3-34 Component locations (4 of 6) 16 17 15 18 ENWW Tools for troubleshooting 289[...]

Figure 3-35 Component locations (5 of 6) 22 19 20 21 23 24 25 26 27 290 Chapter 3 Solve problems ENWW[...]

Figure 3-36 Component locations (6 of 6) 28 29 Table 3-13 PCAs, motors, fans, switches, solenoids, and clutches Location Connector Component abbreviation Component name 1 J89 M12 Residual toner-feed motor 2 J26 FM2 Cartridge fan 3 J27 FM3 Delivery fan 4 J62 SW3 24V interlock switch 5 J118 SW1, SW2 5V interlock switch 6 J84 SL3 Multipurpose-tray pic[...]

Table 3-13 PCAs, motors, fans, switches, solenoids, and clutches (continued) Location Connector Component abbreviation Component name 21 J55 M9 Yellow/magenta scanner motor 22 J56 M8 Cyan/black scanner motor 23 J20 M11 Duplex reverse motor (H P LaserJet Enterprise 500 color M551dn and HP LaserJet Enterp rise 500 color M551xh only) 24 J21 SL2 Duplex[...]

1 x 500 paper feeder Figure 3-37 1 x 500 paper feeder 1 2 4 3 5 6 Location Connector Component abbreviation Component name 1 PF PCA Paper-feeder driver PCA 2 J18 SL1 Paper-feeder pickup solenoid 3 J21 SW2 Paper-feeder door switch 4 J16 SW1 Paper feeder cassette media size switch 5 J15 M2 Paper-feeder lifter motor 6 J14 M1 Paper-feeder motor ENWW To[...]

General timing chart Figure 3-38 General timing chart Timing chart is two consecutive print jobs on letter-size paper (full color using one-to-one speed mode) STBY STBY 3 Fixing delivery sensor 4 Fixing motor Primary transfer bias Y 10 Pickup motor 15 Developing bias Y 13 Primary charging bias C 18 Developing bias Bk TOP sensor 23 Secondary transfe[...]

Circuit diagrams Figure 3-39 General circuit diagram A 6 5 4 3 1 2 B C D B7 A5 B7 M SL 23 23 M M M M M M SL CL A5 17 7 23 23 M TP SL 21 35 M M M SL 5 +5VA PREEXP2 +5VA PREEXP3 +5VA PREEXP4 +5VA PGND SGND SGND SGND SGND SGND SGND PREEXP2 Fuser unit FSRSAFE2 FSRSAFE1 SGND SGND 24VRMT N.C. +5VA PREEXP3 +5VA PREEXP1 PGND PGND +24VB +24VB SGND DRMHP1 +2[...]

Figure 3-40 Paper feeder circuit diagram 296 Chapter 3 Solve problems ENWW[...]

Internal print-quality test pages Print quality troubleshooting pages Use the built-in print-quality-troubleshooting pages to help diagnose and solve print-quality problems. 1. Press the Home button. 2. Open the following menus: ● Administration ● Troubleshooting ● Print Quality Pages 3. Press the Down arrow button to highlight the Print PQ T[...]

Figure 3-42 Yellow print-quality troubleshooting page Y ello w Gr een Figure 3-43 Yellow comparison page Gr een Y ello w Yellow cannot be easily seen unless combined with cyan, so half of each page is yellow and the other half is an amplified version of yellow problems (g reen half). Compare the yellow on page one with the corresponding green on pa[...]

Figure 3-44 Black print-quality troubleshooting page 1 3 2 1. Grids The grids are in inches an d millimeters. They are label with letters and numbers so that defects can be described by position and by distance between repeats. 2. Color plane registration (CPR) bars After printi ng, the box with no extr a color in each area on each page shows how f[...]

Print quality assessment page Use the diagnostics page to evaluate problems with color plane registration, EP parameters, and print quality. 1. Press the Home button. 2. Open the following menus: ● Administration ● Troubleshooting ● Print Quality Pages 3. Press the Down arrow button to highlight the Print Diagnostic Page item, and then press [...]

4 Color plane registration 5 Primary colors 6 Secondary colors 7 Temperature values (21A) 8 Humidity values (21B) ENWW Tools for troubleshooting 301[...]

Cleaning page Process a cleaning page 1. Press the Home button. 2. Open the following menus: ● Device Maintenance ● Calibrate/Cleaning 3. Press the Down arrow button to highlight the Print Cleaning Page item, and then press the OK button. 4. The product prints a cleaning pa ge, and then returns to the main menu. Discard the printed page. Set up[...]

Configuration page Depending on the model, up to three pages print when you print a configuration page. In addition to the main configuration page, the embedde d Jetdirect configuration pages print. Configuration page Use the configuration page to view current product se ttings, to help troubleshoot product problems, or to verify installation of op[...]

Figure 3-45 Configuration page HP LaserJet 500 color m551 Configuration Page Page 1 1 5 6 7 8 9 2 3 4 1 Printer information 2 Installed personalities and options 3 HP Web services 4 Color density 5 Calibration information 6 Memory 7 Event log 8 Security 9 Paper trays and options 304 Chapter 3 Solve problems ENWW[...]

HP embedded Jetdirect page The second configuration page is the HP embe dded Jetdirect page, which contains the following information: Always make sure the status line under the HP Jetd irect configuration lines indicates "I/O Card Ready." Figure 3-46 HP embedded Jetdirect page HP LaserJet 500 color m551 Embedded Jetdirect Page Page 1 2 3[...]

Finding important information on the configuration pages Certain information, such as the firmware date codes, the IP address, and the e-mail gateways, is especially helpful while servicing the product. This information is on the various configuration pages. Table 3-14 Important information on the configuration pages Type of information Specific in[...]

Color band test The color-band test page shows bands of colors that can indicate whether or not the product is producing colors correctly. 1. Press the Home button. 2. Open the following menus: ● Administration ● Troubleshooting ● Print Quality Pages 3. Press the Down arrow button to highlight the Color Band Test item, and then press the OK b[...]

Print quality troubleshooting tools Repetitive defects ruler If defects repeat at regular intervals on the page, use this ruler to identify the cause of the defect. Place the top of the ruler at the first defect. The marking that is beside the next occurrence of the defect indicates which component needs to be replaced. Figure 3-47 Repetitive defec[...]

Distance between defects Product components that cause the de fect 77 mm Fuser sleeve 78 mm Fuser pressure roller 80 mm Printer: distance from prim ary transfer roller to secon dary transfer roller for black 92 mm Print cartridge station to station pitch: di stance from the centerli ne of one OPC to the centerline of the adjacent OPC ITB: drive rol[...]

Control panel menus Sign In menu Table 3-15 Sign In menu First level Second level Values User Access Code Access Code Administrator Acce ss Code Access Code Service Access Code Access Code 310 Chapter 3 Solve problems ENWW[...]

Retrieve Job From USB menu Use the Retrieve Job From USB menu to view listings of jobs stored on an external USB memory device. NOTE: You must enable this feature by using the control-panel menus or the HP Embedded Web Server before it can be used. Table 3-16 Retrieve Job From USB menu First level Second level Values Description Retrieve Job From U[...]

Retrieve Job From Device Memory menu Use the Retrieve Job From Device Memory menu to view listings of jobs stored on the internal product memory. Table 3-17 Retrieve Job From Device Memory menu First level Second level Thi rd level Fourth level Fifth level Values Description Retrieve Job From Device Memory NOTE: Select from a list of folders. All J[...]

Table 3-17 Retrieve Job From Device Memory menu (continued) First level Second level Thi rd level Fourth level Fifth level Values Description NOTE: To print more copies than were specified in the driver when the job was stored, press the down arrow to highlight the Copies option, and then press the OK button. Press the up arrow or the down arrow to[...]

Table 3-17 Retrieve Job From Device Memory menu (continued) First level Second level Thi rd level Fourth level Fifth level Values Description Print and Delete Enter Pin to Print Print and Delete : Select this option to print and then delete all jobs that have been secured with a PIN. You will be prompted to Print and Delete . In the Copies field, s[...]

Table 3-17 Retrieve Job From Device Memory menu (continued) First level Second level Thi rd level Fourth level Fifth level Values Description All Jobs (No PIN) NOTE: Individual job names also appear. Print Copies Range: 1 – 9999 Default = 1 Job without PIN — Menu options include: Print : Select this option to print a job without a PIN. In the C[...]

Supplies menu In the following table, asterisks (* ) indicate the factory default setting. Table 3-18 Supplies menu First level Second level Third level Fourth level Values Description Manage Supplies Print Supplies Status Use the Manage Supplies menu to configure settings for the product supplies. Supply Settings Black Cartridge Very L ow Settings[...]

Table 3-18 Supplies menu (continued) First level Second level Third level Fourth level Values Description ● Stop : The product stops until you replace the print cartridge. ● Prompt to continue : The product stops and prompts you to replace the print cartridge. You can acknowledge the prompt and continue printing. ● Continue : The product aler[...]

Table 3-18 Supplies menu (continued) First level Second level Third level Fourth level Values Description ● Stop : The product stops until you replace the print cartridge. ● Prompt to continue : The product stops and prompts you to replace the print cartridge. You can acknowledge the prompt and continue printing. ● Prompt to continue : The pr[...]

Table 3-18 Supplies menu (continued) First level Second level Third level Fourth level Values Description Toner Collection Unit Very Low Settings Stop * Prompt to continue Continue Low Threshold Settings : Specify how the product notifies you when the toner collection unit is very low. ● Stop : The product stops until you replace the toner collec[...]

Table 3-18 Supplies menu (continued) First level Second level Third level Fourth level Values Description Fuser Kit Very Low Settings Stop Prompt to continue * Continue Use this feature to configure how the product responds when the fuser is reaching the end of its estimated life. Very Low Settings : Specify how the product notifies you when the fu[...]

Table 3-18 Supplies menu (continued) First level Second level Third level Fourth level Values Description Auto * Select Auto to instruct the product to use the mode that is appropriate for the first page of the job. If necessary, the product switches modes during the middle of a job and then stays in that mode until the job is finished. This is the[...]

Table 3-18 Supplies menu (continued) First level Second level Third level Fourth level Values Description Supply Messages Low Message On * Off Use the Supply Messages menu to configure whether a message appears on the control panel when supplies are getting low, but have not yet reached the low threshold. Configure whether a message appears on the [...]

Table 3-18 Supplies menu (continued) First level Second level Third level Fourth level Values Description Toner Collection Unit The status is displayed. Fuser Kit The status is displayed. ENWW Tools for troubleshooting 323[...]

Trays menu In the following table, asterisks (* ) indicate the factory default setting. Table 3-19 Trays menu First level Second level Values Description Manage Trays Use Requested Tray Exclusively * First The product automatically prompts you to configure a tray for paper type and size in the following situations: ● When you load paper into the [...]

Table 3-19 Trays menu (continued) First level Second level Values Description Use Requested Tray Use this feature to control how the product handles jobs that have specified a specific input tray. Two options are available: ● First : The product never selects a different tray when the user has indicated that a specific tray should be used, even i[...]

Table 3-19 Trays menu (continued) First level Second level Values Description Use Another Tray Enabled * Disabled Use this feature to turn on or off the control-panel prompt to select another tray when the specified tray is empty. Two options are available: ● Enabled : When this option is selected, the user is prompted either to add paper to the [...]

Table 3-19 Trays menu (continued) First level Second level Values Description Duplex Blank Pages Auto * Yes Use this feature to control how the product handles two-sided jobs (duplexing). Two options are available: ● Auto : This option enables Smart Duplexing, which instructs the product not to process blank pages. ● Yes : This option disables [...]

Table 3-19 Trays menu (continued) First level Second level Values Description Override A4/Letter Yes * No Use this feature to print on letter- size paper when an A4 job is sent but no A4-size paper is loaded in the product (or to print on A4 paper when a letter-size job is sent but no letter-size paper is loaded). This option will also override A3 [...]

Administration menu Reports menu Table 3-20 Reports menu First level Second level Description Configuration/Status Pages Print Select the name of the report you want to print. Administration Menu Map Administration Menu Map : Shows a map of the entire Administration menu and the selected values for each setting. Configuration Page Configuration Pag[...]

Table 3-20 Reports menu (continued) First level Second level Description CMYK Samples CMYK Samples — Prints color samples for different CMYK values. Use the samples as a guide for matching printed colors. PCL Font List PCL Font List — Prints the available PCL fonts. PS Font List PS Font List — Prints the available PS fonts. 330 Chapter 3 Solv[...]

General Settings menu In the following table, asterisks (* ) indicate the factory default setting. Table 3-21 General Settings menu First level Second level Third le vel Fourth level Values Description Date/Time Settings Date/Time Format Date Format DD/MMM/YYYY MMM/DD/YYYY * YYYY/MMM/DD Use the Date/Time Settings menu to specify the date and time a[...]

Table 3-21 General Settings menu (continued) First level Second level Third le vel Fourth level Values Description Sleep/Auto Off After The default value is 45 minutes. Enter a value between 1 and 120 minutes. Use this menu item to set the number of minutes after which the product enters Sleep or Auto Off mode. Use the arrow buttons on the control [...]

Table 3-21 General Settings menu (continued) First level Second level Third le vel Fourth level Values Description Print Quality Adjust Color Highlights Cyan Density Magenta Density Yellow Density Black Density -5 to 5 Default = 0 Highlights are the brightest color-values in an image. Restore Color Values: Use this feature to restore all the color-[...]

Table 3-21 General Settings menu (continued) First level Second level Third le vel Fourth level Values Description Midtones Cyan Density Magenta Density Yellow Density Black Density -5 to 5 Default = 0 Midtones are the middle-range color- values in an image. For each color, select a setting to adjust the darkness or lightness of midtones on the pri[...]

Table 3-21 General Settings menu (continued) First level Second level Third le vel Fourth level Values Description Shadows Cyan Density Magenta Density Yellow Density Black Density -5 to 5 Default = 0 Shadows are the darkest color-values in an image. For each color, select a setting to adjust the darkness or lightness of shadows on the printed page[...]

Table 3-21 General Settings menu (continued) First level Second level Third le vel Fourth level Values Description Image Registration Adjust Tray <X> Print Test Page Image Registration Use this feature to shift the margin alignment to center the image on the page from top to bottom and from left to right. You can also align the image on the f[...]

Table 3-21 General Settings menu (continued) First level Second level Third le vel Fourth level Values Description X1 Shift Y1 Shift X2 Shift Y2 Shift -5.00 mm to 5.00 mm Default = 0 The direction that is perpendicular to the way the paper passes through the product is referred to as X. This is also known as the scan direction. X1 is the scan direc[...]

Table 3-21 General Settings menu (continued) First level Second level Third le vel Fourth level Values Description Auto Sense Behavior Tray 1 Sensing Fuser Kit Expanded sensing Transparency only Auto Sense Behavior Use this feature to configure which paper types the product should automatically sense. The product can detect the type of paper in the[...]

Table 3-21 General Settings menu (continued) First level Second level Third le vel Fourth level Values Description Resistance Mode Normal * Up Down Use this setting to correct print quality problems in low- humidity environments and highly resistive paper. The default setting is Normal . Use the Up setting to solve print quality problems that are r[...]

Table 3-21 General Settings menu (continued) First level Second level Third le vel Fourth level Values Description Fuser Temp Mode Normal * Up Down If you are seeing a faint image of the page repeated at the bottom of the page or on the following page, you should first make sure the Paper Type and Print Mode settings are correct for the type of pap[...]

Table 3-21 General Settings menu (continued) First level Second level Third le vel Fourth level Values Description Optimize Normal Pa per Standard * Smooth Use this menu to optimize various print modes to address print quality issues. Normal Paper Use this setting to correct print quality problems when using very smooth paper of normal weight. The [...]

Table 3-21 General Settings menu (continued) First level Second level Third le vel Fourth level Values Description Line Voltage Normal * Low Voltage Enable this feature if the product is operating in a low voltage environment and you are having problems with print quality such as blisters in the printed image. Tray 1 Normal * Alternate This feature[...]

Table 3-21 General Settings menu (continued) First level Second level Third le vel Fourth level Values Description Uniformity Control Normal * Alternate 1 Alternate 2 Alternate 3 Use this setting to correct uniformity issues in print jobs. This may help correct print quality issues such as a mottled appearance due to poor transfer of toner onto the[...]

Table 3-21 General Settings menu (continued) First level Second level Third le vel Fourth level Values Description Transfer Control Normal * Alternate 1 Alternate 2 Alternate 3 Use this setting to correct transfer issues in print jobs. Turn this feature on if green, mottled images are printed on the page. Note that using this mode can increase prob[...]

Table 3-21 General Settings menu (continued) First level Second level Third le vel Fourth level Values Description Restore Optimize Use this feature to return all the settings in the Optimize menu to the factory- default values. Edge Control Off Light Normal * Maximum The Edge Control setting determines how edges are rendered. Edge control has two [...]

Table 3-21 General Settings menu (continued) First level Second level Third le vel Fourth level Values Description Jam Recovery Auto * Off On This product provides a jam recovery feature that reprints jammed pages. Select one of the following options: ● Auto : The product attempts to reprint jammed pages when sufficient memory is available. This [...]

Table 3-21 General Settings menu (continued) First level Second level Third le vel Fourth level Values Description Auto Recovery Enable Disable * The product attempts to reprint jammed pages when sufficient memory is available. This is the default setting. Manage Stored Jobs Quick Copy Job Storage Limit 1-300 Default = 32 Manage Stored Jobs Use thi[...]

Table 3-21 General Settings menu (continued) First level Second level Third le vel Fourth level Values Description Restore Factory Settings Reset All General Print General Security Calibration Use this feature to restore all product settings to their factory defaults. Restrict Color Enable color Disable color Color if allowed * Use this feature to [...]

Retrieve From USB Settings menu Table 3-22 Retrieve From USB Settings menu First level Second level Values Enable Retrieve from USB Enable Disable * General Print Settings menu In the following table, asterisks (* ) indicate the factory default setting. Table 3-23 General Print Settings menu First level Second level Values Description Manual Feed E[...]

Table 3-23 General Print Settings menu (continued) First level Second level Values Description Personality Auto * PCL PS PDF Use this feature to configure the default print language or personality for the product. Normally you should not change the product language (the default is Auto ). If you change the setting to a specific product language, th[...]

Table 3-23 General Print Settings menu (continued) First level Second level Values Description Font Pitch Range: 0.44 – 99.99 Default = 10 If Font Source and Font Number indicate a contour font, then use this feature to select a default pitch (for a fixed- spaced font). The range for this setting is 0.44 to 99.99. The factory default setting is 1[...]

Table 3-23 General Print Settings menu (continued) First level Second level Values Description Suppress Blank Pages No * Yes This option is for users who are generating their own PCL, which could include extra form feeds that would cause blank pages to be printed. When Yes is selected, form feeds are ignored if the page is blank. The factory defaul[...]

Table 3-24 Default Print Options menu (continued) First level Second level Values Description Default Custom Paper Size Unit of Measure Inches X Dimension Range: 2.99 – 12.28 Default = 12.28 Use the items in this menu to configure the default paper size that is used when the user selects Custom as the paper size for a print job. Y Dimension Range[...]

Table 3-24 Default Print Options menu (continued) First level Second level Values Description 2-Sided Format Book-style * Flip-style Use this feature to configure the default style for 2-sided print jobs. If Book-style is selected, the back side of the page is printed the right way up. This option is for print jobs that are bound along the left edg[...]

Display Settings menu In the following table, asterisks (* ) indicate the factory default setting. Table 3-25 Display Settings menu First level Second level Values Description Display Brightness Range: -10 to 10 Default = 0 Use the Display Settings menu to configure the display brightness. Language Select from a list of languages that the product s[...]

Table 3-25 Display Settings menu (continued) First level Second level Values Description Clearable Warnings On Job * Use this feature to set the period that a clearable warning appears on the control panel. If the setting is On , clearable warnings appear until the Clearable Warnings button is pressed. If Job is selected, clearable warnings stay on[...]

Table 3-26 Manage Supplies menu (continued) First level Second level Third level Fourth level Values Description Supply Settings Black Cartridge Very L ow Settings Stop Prompt to continue * Continue Use the Supply Settings menu to configure how the product reacts when supplies are reaching the end of their estimated life. Supply Settings Use this f[...]

Table 3-26 Manage Supplies menu (continued) First level Second level Third level Fourth level Values Description Low Threshold Settings 1-100% Low Threshold Settings : Set the estimated percentage at which the product notifies you when the print cartridge is very low. Color Cartridges Very Low Settings Stop Prompt to continue * Continue Use this fe[...]

Table 3-26 Manage Supplies menu (continued) First level Second level Third level Fourth level Values Description Low Threshold Settings Cyan Cartridge Magenta Cartridge Yellow Cartridge 1-100% Low Threshold Settings : Set the estimated percentage at which the product notifies you when the print cartridge is very low. You can specify a different per[...]

Table 3-26 Manage Supplies menu (continued) First level Second level Third level Fourth level Values Description Toner Collection Unit Very Low Settings Stop * Prompt to continue Continue Use this feature to configure how the product responds when the toner collection unit is reaching the end of its estimated life. This condition is equivalent to t[...]

Table 3-26 Manage Supplies menu (continued) First level Second level Third level Fourth level Values Description Fuser Kit Very Low Settings Stop Prompt to continue * Continue Low Threshold Settings 1-100% Color/Black Mix Auto *U s e t h i s f e a t u r e t o instruct the product when to switch between color and monochrome printing modes for the be[...]

Table 3-26 Manage Supplies menu (continued) First level Second level Third level Fourth level Values Description Mostly Black Pages Select Mostly Black Pages if the majority of jobs that you print are in black & white. The product uses monochrome mode until it detects a color page. The product switches back to monochrome mode when it detects a [...]

Manage Trays menu In the following table, asterisks (* ) indicate the factory default setting. Table 3-27 Manage Trays menu First level Values Description Use Requested Tray Exclusively * First Use this feature to co ntrol how the product handles jobs that have specified a specific input tray. Two options are available: ● Exclusively : The produc[...]

Table 3-27 Manage Trays menu (continued) First level Values Description Use Another Tray Enabled * Disabled Use this feature to turn on or off the control- panel prompt to select another tray when the specified tray is empty. Two options are available: ● Enabled : When this option is selected, the user is prompted either to add paper to the selec[...]

Network Settings menu In the following table, asterisks (* ) indicate the factory default setting. Table 3-28 Network Settings menu First level Values Description I/O Timeout Range: 5 – 300 sec Default = 15 Use this feature to set the I/O timeout period in seconds. I/O timeou t refers to the elapsed time before a print job fails. If the stream of[...]

Table 3-29 Jetdirect Menu (continued) First level Second level Third level F ou rth level Fifth level Values Description IPv4 Settings Config Method Bootp * DHCP Auto IP Manual Specifies the method that TCP/ IPv4 parameters will be configured on the HP Jetdirect print server. Use Bootp (Bootstrap Protocol) for automatic configuration from a BootP s[...]

Table 3-29 Jetdirect Menu (continued) First level Second level Third level F ou rth level Fifth level Values Description Manual Settings NOTE: This menu is available only if you select the Manual option under the Config Method menu. IP Address Enter the address (Available only if Config Method is set to Manual ) Configure parameters directly from t[...]

Table 3-29 Jetdirect Menu (continued) First level Second level Third level F ou rth level Fifth level Values Description DHCP Release Yes No * This menu appears if Config Method is set to DHCP and a DHCP lease for the print server exists. No : The current DHCP lease is saved. Yes : The current DHCP lease and the leased IP address are released. DHCP[...]

Table 3-29 Jetdirect Menu (continued) First level Second level Third level F ou rth level Fifth level Values Description IPv6 Settings Enable On * Off Use this item to enable or disable IPv6 operation on the print server. Off : IPv6 is disabled. On : IPv6 is enabled. Address Manual Settings Enable On Off * Use this item to enable and manually confi[...]

Table 3-29 Jetdirect Menu (continued) First level Second level Third level F ou rth level Fifth level Values Description DHCPV6 Policy Router Specified Router Unavailabl e * Always Router Specified : The stateful auto- configuration method to be used by the print server is determined by a router. The router specifies whether the print server obtain[...]

Table 3-29 Jetdirect Menu (continued) First level Second level Third level F ou rth level Fifth level Values Description Proxy Server Select from a provided list. Specifies the proxy server to be used by embedded applications in the product. A proxy server is typically used by network clients for Internet access. It caches Web pages, and provides a[...]

Table 3-29 Jetdirect Menu (continued) First level Second level Third level F ou rth level Fifth level Values Description General Security Secure Web HTTPS Required * HTTPS Optional For configuration management, specify whether the embedded Web server will accept communications using HTTPS (Secure HTTP) only, or both HTTP and HTTPS. HTTPS Required :[...]

Table 3-29 Jetdirect Menu (continued) First level Second level Third level F ou rth level Fifth level Values Description Reset Security Yes No * Specify whether the current security settings on the print server will be saved or reset to factory defaults. Yes : Security settings are reset to factory defaults. No : The current security settings are m[...]

Table 3-29 Jetdirect Menu (continued) First level Second level Third level F ou rth level Fifth level Values Description Diagnostics Embedded Tests LAN HW Test Yes No * This menu provides tests to help diagnose network hardware or TCP/IP network connection problems. Embedded tests help to identify whether a network fault is internal or external to [...]

Table 3-29 Jetdirect Menu (continued) First level Second level Third level F ou rth level Fifth level Values Description LAN HW Test Select Yes to choose this test, or No to not choose it. HTTP Test Yes No * This test checks operation of HTTP by retrieving predefined pages from the product, and tests the embedded Web server. Select Yes to choose th[...]

Table 3-29 Jetdirect Menu (continued) First level Second level Third level F ou rth level Fifth level Values Description Select All Tests Yes No * Use this item to select all available embedded tests. Select Yes to choose all tests. Select No to select individual tests. Execution Time Range: 1 – 60 hours Default = 1 Use this item to specify the l[...]

Table 3-29 Jetdirect Menu (continued) First level Second level Third level F ou rth level Fifth level Values Description Ping Test Dest Type IPv4 IPv6 This test is used to check network communications. This test sends link-level packets to a remote network host, then waits for an appropriate response. To run a ping test, set the following items: De[...]

Table 3-29 Jetdirect Menu (continued) First level Second level Third level F ou rth level Fifth level Values Description Count Default = 004 Specify the number of ping test packets to send for this test. Select a value from 0 to 100. The default is 4. To configure the test to run continuously, select 0. Print Results Yes No * Execute Yes No * No : [...]

Table 3-29 Jetdirect Menu (continued) First level Second level Third level F ou rth level Fifth level Values Description Percent Lost Default = 000 Percent Lost Shows the percent (0 to 100) of ping test packets that were sent with no response from the remote host since the most recent test was initiated or completed. The default is 0. RTT Min Defau[...]

Table 3-29 Jetdirect Menu (continued) First level Second level Third level F ou rth level Fifth level Values Description Ping In Progress Yes No * Ping In Progress Shows whether a ping test is in progress. Yes indicates a test in progress, and No indicates that a test completed or was not run. Refresh Yes No * Refresh When viewing the ping test res[...]

Table 3-29 Jetdirect Menu (continued) First level Second level Third level F ou rth level Fifth level Values Description Link Speed Auto * T he link speed and communication mode of the print server must match the network. The available settings depend on the product and installed print server. Select one of the following link configuration settings[...]

Table 3-29 Jetdirect Menu (continued) First level Second level Third level F ou rth level Fifth level Values Description 100TX Half 100TX Half 100 Mbps, half- duplex operation. 100TX Full 100TX Full 100 Mbps, full- duplex operation. 100TX Auto 100TX Auto Limits auto- negotiation to a maximum link speed of 100 Mbps. 1000T Full 1000T Full 1000 Mbps, [...]

Table 3-30 Troubleshooting menu (continued) First level Second level Third le vel Fourth level Values Description View Event Log Use this feature to view a list of the most recent events in the Event Log. For each event, the log shows the error number, page count, error code, and description or personality. Print Paper Path Page Print Quality Pages[...]

Table 3-30 Troubleshooting menu (continued) First level Second level Third le vel Fourth level Values Description Color Band Test Print Test Page The Color Band Test prints a page that helps you identify arcing in the high- voltage power supply for each color. The page contains a series of colored bars. If streaks appear on a bar, the high-voltage [...]

Table 3-30 Troubleshooting menu (continued) First level Second level Third le vel Fourth level Values Description Diagnostic Tests Disable Cartridge Check Use this feature to put the product into a special mode in which you can remove a print cartridge and still print internal pages. This can help you identify the source of a problem. When you are [...]

Table 3-30 Troubleshooting menu (continued) First level Second level Third le vel Fourth level Values Description Number of Copies Range: 1 – 500 Default = 1 Use this feature to set the default number of copies for a copy job. This default applies when the Copy or Quick Copy function is initiated from the product Home screen. The factory default [...]

Table 3-30 Troubleshooting menu (continued) First level Second level Third le vel Fourth level Values Description Component Test Select from a list of available components. Use this feature to exercise individual parts independently to isolate noise, leaking, or other issues. To start the test, select one of the components. The test will run the nu[...]

Device Maintenance menu Backup/Restore menu CAUTION: Data backup and restoration is the responsibi lity of the customer/administrator of the product. Service personnel should not back up or restore customer data under any circumstances. In the following table, asterisks (* ) indicate the factory default setting. Table 3-31 Backup/Restore menu First[...]

Table 3-32 Calibrate/Cleaning menu (continued) First level Second level Values Description Quick Calibration The product automatically calibrates itself at various times. However, you can calibrate the product immediately if you see problems with pr int quality. Use this feature to perform a partial calibration. Use th is calibration if color densi[...]

Table 3-32 Calibrate/Cleaning menu (continued) First level Second level Values Description Full Calibration The product automatically calibrates itself at various times. However, you can calibrate the product immediately if you see problems with pr int quality. Use this feature to perform a full calibration, which can take up to three minutes. Use [...]

USB Firmware Upgrade menu To display : At the product control panel, select the Device Maintenance menu, and then select the USB Firmware Upgrade menu. Insert a USB storage device with a firmware upgr ade bundle into the USB port, and follow the on- screen instructions. ENWW Tools for troubleshooting 391[...]

Interpret control panel messages, status-alert messages, and event code errors The control-panel messages indicate the current produc t status or situations that might require action. 10.0X.Y0 Supply memory error Description The product cannot read or write to at least one pr int cartridge memory tag or a memory tag is missing from a print cartridg[...]

3. Check the cartridge e-label. If it is damaged, replace the cartridge. 4. If the error persists, replace the indicated print cartridge. 10.22.50 Description The transfer kit life was re set above the order threshold. A new ITB was installed. Recommended action No action necessary. 10.22.51 Description The transfer kit life was res et above the re[...]

10.23.51 Description The fuser kit life was reset above the replace threshold. A new ITB was installed. Recommended action No action necessary. 10.23.52 Description The fuser kit life was reset above the reset threshold. A new ITB was installed. Recommended action No action necessary. 10.23.60 Description The product indicates when the fuser kit is[...]

TIP: Advise the customer that HP recommends that th ey have replacement supplies available to install when the print quality is no longer acceptable. 10.XX.34 Used supply in use Description The indicated cartridge is used. ◦ 10.00.34 (event code) Black print cartridge ◦ 10.01.34 (event code) Cyan print cartridge ◦ 10.02.34 (event code) Magent[...]

10.XX.41 Unsupported supply in use Description The indicated print cartridge is for a different product. ◦ 10.00.41 (event code) Black print cartridge ◦ 10.01.41 (event code) Cyan print cartridge ◦ 10.02.41 (event code) Magenta print cartridge ◦ 10.03.41 (event code) Yellow print cartridge Recommended action Remove the indicated print cartr[...]

Recommended action If print quality is no longer acceptable, replace the indicated print cartridge . See the parts chapter in the service manual for the correct cartridge part number. TIP: Advise the customer that HP recommends that th ey have replacement supplies available to install when the print quality is no longer acceptable. 10.YY.15 Install[...]

◦ 10.02.25 (event code) Magenta print cartridge ◦ 10.03.25 (event code) Yellow print cartridge Recommended action Install the indicated cartridge in the correct position. From left to right, the co rrect cartridge order follows: ◦ Yellow ◦ Magenta ◦ Cyan ◦ Black 10.YY.35 Incompatible <supply> Description The indicated supply is no[...]

11.00.YY Internal clock error Description The product real time clock has experienced an error. ◦ 01=dead clock ◦ 02=dead real time clock Recommended action Whenever the product is turned off and then turn ed on again, set the time and date at the control panel. If the error persists, you might need to replace the formatter. 13.00.00 Descriptio[...]

13.B2.A1 Description Media input stay Tray 1 jam. Recommended action Check the product for a jam. 13.B2.A2 Description Media input stay Tray 2 jam. Recommended action Check the product for a jam. 13.B2.A3 Description Media input stay Tray 3 jam. Recommended action Check the product for a jam. 13.B2.D1 Description Media input delay Tray 1 jam. Recom[...]

Recommended action Check the product for a jam. 13.D3.DZ Description Late to duplex re-feed jam Z = fuser mode Recommended action Check the product for a jam. See the clea r jams section in the service manual. 13.WX.EE Description This jam occurs when a door is opened during printing. ◦ 13.AA.EE (event code) Tray 3 door open ◦ 13.BA.EE (event c[...]

Fuser output sensor - PS5 ◦ 13.A3.FF (event code) Tray 3 feed sensor - SR1 ◦ 13.FF.FF (event code) Multiple sensors Recommended action Clear the jam. 13.WX.YZ Fuser area jam Description ◦ 13.B9.AZ (event code) Stopped at fuser jam This jam occurs when the paper stays at the fuse r output sensor for a designated amount of time after it has rea[...]

● E = Rough ● 0 = Photo 1 to 3 ◦ 13.B9.DZ (event code) Z = the source tray number This jam occurs when the paper does not reach the fuser output sensor in the designated amount of time. ◦ 13.E1.DZ (event code) Z = fuser mode This jam occurs when the paper st ays at the fuser output sensor for a designated amount of time after it has reached[...]

● B = Transparency ● C = Label ● D = Envelope 1 to 3 ● E = Rough ● 0 = Photo 1 to 3 Recommended action Clear the jam. See the clear jams section in the service manual. 13.WX.YZ Jam below control panel Description ◦ 13.B2.9Z (event code) Page at duplex switchback jam. Z = the source tray number Recommended action Check the product for a [...]

13.WX.YZ Jam in right door Description ◦ 13.B2.AZ (event code) Stopped at registration jam. This jam occurs when the media is longer than the longest Universal size, (470 mm; 18.50 in), by 40 mm (1.57 in) or more, and printing from Tray 1. However, this jam occurs when the media that is longer than the designated length by 40 mm (1.57 in) and mor[...]

This jam occurs when the paper does not reach th e registration (TOP; SR8) sensor in designated amount of time from the start of paper pickup at printing from Tray 1 and duplex printing. Recommended action Clear the jam. See the clear jams section in the service manual. 13.WX.YZ Jam in Tray <X> Description ◦ 13.B2.D2 (event code) Misfeed ja[...]

32.08.XX Description ◦ 32.08.A1 (event code) Initialized after abnormal shutdown ◦ 32.08.A2 (event code) Clean shutdown ◦ 32.08.A3 (event code) Normal initialization Recommended action No action necessary 32.1C.XX Description ◦ 32.1C.01 (event code) NVRAM backup/restore service backup started ◦ 32.1C.02 (event code) NVRAM backup/restore s[...]

Tried to restore a backup file that was not valid for this product ◦ 32.1C.0A (event code) Backup file is invalid ◦ 32.1C.0B (event code) Backup is from newer version of FW th an what is currently on the product ◦ 32.1C.0C (event code) Backup cancelled from the HP Embedded Web Server ◦ 32.1C.0D (event code) Backup/restore failed, auto-reboo[...]

NVRAM backup/restore successful ◦ 32.1C.28 (event code) Reset of print subsystem failed ◦ 32.1C.29 (event code) Reset of networking subsystem failed ◦ 32.1C.2B (event code) Reset formatter timeout ◦ 32.1C.2E (event code) Reset engine timeout ◦ 32.1C.2F (event code) Reset failure Recommended action ◦ 32.1C.01 (event code) No action neces[...]

◦ 32.1C.09 (event code) Use a valid backup file ◦ 32.1C.0A (event code) Use a valid backup file Reboot and observe state of product Do a partition clean using the Preboot menu ◦ 32.1C.0B (event code) Use a valid backup file or put correc t firmware version on the product ◦ 32.1C.0C (event code) No action necessary ◦ 32.1C.0D (event code) [...]

If the error persists, clear the firmware im age from the active partition by using the Partial Clean item in the Preboot menu ◦ 32.1C.22 (event code) Turn the product off then on and retry If the error persists, clear the firmware im age from the active partition by using the Partial Clean item in the Preboot menu ◦ 32.1C.24 (event code) Turn [...]

33.XX.YY Description ◦ 33.01.01 (event code) Recover occurred ◦ 33.01.02 (event code) Initial save occurred ◦ 33.01.03 (event code) Save/recover status OK ◦ 33.02.01 (event code) Used board/disk installed ◦ 33.02.02 (event code) Save/recover disabled (o ne or both disabled) ◦ 33.02.03 (event code) Save/recover disabled (pro duct functio[...]

41.03.YZ Unexpected size in tray <X> Description The product detected a different paper size than expected. ◦ Y = 0 Size mismatch. Detected media is lo nger or shorter than expected. ◦ Y = A Size mismatch. Detected media too long. ◦ Y = B Size mismatch. Detected media too short. ◦ Z = 1 Source is Tray 1 ◦ Z = 2 Source is Tray 2 ◦ [...]

Glossy media ◦ Y = 5 (expected type) Gloss film ◦ Y = 6 (expected type) Non-assured OHT ◦ Y = 7 (expected type) Heavy media ◦ Y = 8 (expected type) Light media ◦ Y = 9 (expected type) Rough media ◦ Y = A (expected type) Extra heavy glossy media (glossy media 3) ◦ Y = B (expected type) Heavy glossy media (glossy media 2) ◦ Y = C (exp[...]

Heavy media ◦ Z = 8 (detected type) Light media ◦ Z = 9 (detected type) Rough media ◦ Z = A (detected type) Extra heavy glossy media (glossy media 3) ◦ Z = B (detected type) Heavy glossy media (glossy media 2) ◦ Z = C (detected type) Heavy media 3 ◦ Z = D (detected type) Heavy media 2 Recommended action Load the tray with the size and t[...]

Light media 1, 2, or 3: typed or AutoSense ◦ Y = 4 Heavy media 1: typed or AutoSense ◦ Y = 5 Heavy media 2: typed or AutoSense ◦ Y = 6 Heavy media 3: typed or AutoSense ◦ Y = 7 Glossy media 1: typed or AutoSense ◦ Y = 8 Glossy media 2: typed or AutoSense ◦ Y = 9 Glossy media 3: typed or AutoSense ◦ Y = A Glossy film: typed or AutoSens[...]

Recommended action Turn the product off, and then on. If the error persists, replace the DC controller PCA. 42.XX.YY Description Internal system failure Recommended action Turn the product off, then on, and retry. If the error persists, clear the firmware im age from the active partition by using the Partial Clean item in the Preboot menu. 47.00.XX[...]

47.03.XX Description Print job internal error Recommended action Turn the product off, and then on again. Resend the print job. If the error persists, execute the Partial Clean item in the Preboot menu. 47.04.XX Description Print spooler 9100 internal error Recommended action Turn the product off, and then on again. Resend the print job. If the err[...]

Y = calibration type, Z = event ◦ 47.FC.00 (event code) Color plane registration (CPR) Image not found at system initialization ◦ 47.FC.01 (event code) CPR Store Image failure ◦ 47.FC.02 (event code) CPR Image not found ◦ 47.FC.03 (event code) CPR Print engine execution failure ◦ 47.FC.10 (event code) Consecutive Dmax Dhalf Image not foun[...]

Drum Speed Adjustment Image not found ◦ 47.FC.33 (event code) Drum Speed Adjustment Print engine execution failure ◦ 47.FC.40 (event code) Pulse Width Modulation Image not found at system initializatione ◦ 47.FC.41 (event code) Pulse Width Modulation Store image failure ◦ 47.FC.42 (event code) Pulse Width Modulation Image not found ◦ 47.F[...]

50.WX.YZ Fuser error To continue, turn off then on Description The fuser has experienced an error. W = fuser error code, X = fuser mode, Y = previous printer sleep state, Z = next printer sleep state Recommended action W = 2 Fuser warm-up failure 1. Reconnect the connector (J50) between the fuser and the DC controller PCA. 2. Turn the product off. [...]

Drive circuit fault 1. Check the power source. Make sure the po wer source meets product requirements. NOTE: If the power source does not meet the powe r frequency requirement of 43 to 67Hz, the fuser temperature control does not wo rk properly and causes this error. 2. If the error persists, replace the low-voltage power supply. 3. If this product[...]

5. If the error persists, replace the fuser. 6. If this product has been previously serviced, ch eck the connector (J117; J 123) on the DC controller PCA. W = 11 High fuser temperature 2 1. Remove and then reseat the fuser. Make sure there is no residual paper in the fuser. Make sure the device is not located in front of a vent or wind ow where coo[...]

51.00.YY Error Description Laser/scanner error ◦ YY = 20 or 21 Cyan/black laser/scanner error (C/K) ◦ YY = 22 or 23 Yellow/magenta laser/scanner error (Y/M) Recommended action 51.00.20 or 51.00.21 1. Check the connector (J501) on the laser/scanner driver PCA and the connector (J111) on the DC controller PCA. 2. If the error persists, repl ace t[...]

XX = 05 1. Check the connector (J50-Y/K or J503-C/M) on th e laser/scanner driver PCA and the connectors (J106; J110-C/K or J111-C/M) on the DC controller PCA. 2. If the error persists, replace the appropriate laser/scanner. 54.XX.YY Error Description A sensor error has occurred. Recommended action 54.00.03 Environmental sensor failure 1. Turn the [...]

X = 0 black, X = 1 cyan, X = 2 magenta, X = 3 yellow 1. Check the supplies status page to make sure the toner cartridges are not past their useful life. 2. Check the ITB for damage. 3. Make sure the CPR sensor is not contaminated with toner or paper dust. Clean the sensor with compressed air and soft brush. 4. If error persists, replace the registr[...]

55.00.YY DC controller error To continue, turn off then on Description DC controller PCA error ◦ 55.00.01 (event code) DC controller memory error ◦ 55.00.02 (event code) DC controller no engine response ◦ 55.00.07 (event code) DC controller communications timeout Recommended action Turn the product off, and then on. If the error persists, rep[...]

57.00.0Y Error To continue, turn off then on Description Fan error Recommended action 57.00.03 Power supply fan (FM1) failure 1. Turn the product off, and then on. Listen for fan nois e at the front lower-left corner of the product. If no noise is heard, replac e the power supply fan (FM1). 2. If this part has been removed or replace, chec k the co[...]

Recommended action 1. Turn the product off, and then on. 2. Check the connector (J143) on the DC controller PCA. 3. If the error persists, replace the low-voltage power supply. 59.00.YY Error To continue, turn off then on Description Printing error Recommended action 59.00.04 or 59.00.05 Fuser motor (M2) start up error or fuser motor (M2) ro tation[...]

59.05.08 or 59.05.09 1. Turn the product off, and then on. 2. Check the connector (J120) on the DC controller PCA. 3. Use the motor drive test in the componet test to verify that the motor is properly functioning. If it is not, replace the drum motor (M1). 59.05.10 or 59.05.11 1. Turn the product off, and then on. 2. Check the connector (J120) on t[...]

Lifter motor failure (M7) 1. Turn the product off, and then on. 2. Check the connector (J141) on the DC controller PCA. 3. Check the connector (J78) on the lifter motor (M7). 4. Use the Cassette lifter sensor sensor (SR9) test in the Tr ay/Bin manual sensor test to verify that the sensor is properly functioning. If it is not, replace the lifter dri[...]

81.0X.YY Embedded JetDirect error Description Embedded HP JetDirect print server critical error ◦ 81.01.00 (event code) EIO Networking Event: <UVWXYZ> ◦ 81.02.00 (event code) Wireless Networking Event: <UVWXYZ> ◦ 81.03.00 (event code) Access Point Wireless Networking Event: <UVWXYZ> ◦ 81.04.00 (event code) JetDirect Inside[...]

98.00.02 Corrupt data in solutions volume Description Data corruption has occurr ed in the solutions volume Recommended action Turn the product off, and then on. Use the Clean Disk item in the Preboot menu. Reload the firmware. 98.00.03 Corrupt data in configuration volume Description Data corruption has occurred in the configuration volume Recomme[...]

99.00.02 Upgrade not performed timeout during receive Description A remote firmware upgrade (RFU) was not performed. I/O timeout when reading header number and size. Indicates a problem with the network environment, not the device. Recommended action The most common cause is an issue with the netw ork environment. Make sure that there is a good con[...]

Recommended action The most common cause is an issue with the networ k environment. Make sure that there is a good connection to the device and attempt the upgrade again, or upgrade usin g the USB walk-up port. 99.00.06 Upgrade not performed error reading upgrade Description A remote firmware upgrade (RFU) was not performed. Unexpected read error w[...]

Recommended action Resend the RFU. 99.00.10 Upgrade canceled by user Description A remote firmware upgrade (RFU) was not performed. Job canceled when reading header number and size. Recommended action Resend the RFU. 99.00.11 Upgrade canceled by user Description A remote firmware upgrade (RFU) was not performed. Job canceled when reading rest of he[...]

99.00.14 Upgrade not performed the file is invalid Description A remote firmware upgrade (RFU) was not performed. The file is invalid. Recommended action Download the RFU file again. Make sure that yo u download the file for the correct product model. Resend the RFU. 99.00.2X Description ◦ 99.00.20 (event log) The bundle is not for this product ?[...]

99.09.60 Unsupported disk Description Preboot menu error. The hard disk currently installed is not recognized or supported by the product. Recommended action Install the correct hard disk for this product. 99.09.61 Unsupported disk Description Preboot menu error. The installed disk is installed in a prod uct configured for a encrypted hard disk. Re[...]

Recommended action Replace the hard disk drive. 99.09.65 Disk data error Description Disk data corruption has occurred. Recommended action Execute the Clean Disk procedure from the Preboot menu, and then resend the RFU. 99.09.66 No disk data installed Description A disk drive is not installed in the product. Recommended action Install a compatible [...]

99.XX.YY Description Firmware install error Recommended action reload the firmware. <Binname> Full Remove all paper from bin Description The specified output bin is full. Recommended action Empty the bin to continue printing. <Supply> almost full Description Toner Collection bottle is almost full. ◦ 10.31.60 (event code) Toner collect[...]

◦ 10.03.60 (event code) Yellow print cartridge ◦ 10.23.60 (event code) Fuser Kit ◦ 10.22.60 (event code) Transfer kit Recommended action If print quality is no longer acceptable, replace the supply. HP recommends that the customer have a replacement supply available to install when print quality is no longer acceptable. NOTE: When an HP suppl[...]

Recommended action If print quality is no longer acceptable, replace the supply. HP recommends that the customer have a replacement supply available to install when print quality is no longer acceptable. NOTE: When an HP supply has reache d its approximated end of life, the HP Premium Protection Warranty ends. <Tray X> lifting Description The[...]

Recommended action Press the OK button to clear the error. [File System] is not initialized Description This file-storage component must be initialized before use. Recommended action Use the HP Embedded Web Server or HP Web Jetadmin to initialize the file system. [File System] is write protected Description The file system device is protected an d [...]

Calibration reset pending Description A calibration reset occurs wh en all jobs are processed. Recommended action To begin the reset sooner, cancel all jobs by pressing the Stop button . Canceling Description The product is canceling the current job. Recommended action No action is necessary. Canceling... <jobname> Description The product is [...]

Chosen personality not available To continue, press OK Description A print job requested a product language (personality) that is not available for this product. The job will not print and will be cleared from memory. Recommended action Print the job by using a print driver for a differen t language, or add the requested language to the product (if[...]

Close front door Description The front door of the product is open. Recommended action Close the door. Use the switch test in the manual sensor test to verify that the front-door switch is properly functioning. If the switch fails the test, replace the switch. Check the sensor flag on the front-door assembly. If it is damaged, replace the front-doo[...]

Recommended action No action is necessary. Data received To print last page, press OK Description The product is waiting for the command to print the last page. Recommended action Press the OK button to print the last page of the job. EIO <X> disk initializing Description The specified EIO disk device is initializing. Recommended action No ac[...]

Incompatible <supply> Description The indicated supply <supply>is not compatible with this product. ◦ 10.00.35 (event code) Black print cartridge ◦ 10.01.35 (event code) Cyan print cartridge ◦ 10.02.35 (event code) Magenta print cartridge ◦ 10.03.35 (event code) Yellow print cartridge ◦ Fuser kit 10.23.35 (event code) Recommen[...]

Install <supply> Description A supply item is either not installed or installed incorrectly. ◦ Black cartridge 10.00.15 (event code) ◦ Cyan cartridge 10.10.15 (event code) ◦ Magenta cartridge 10.02.15 (event code) ◦ Yellow cartridge 10.03.15 (event code) ◦ Fuser kit 10.23.15 (event code) Recommended action Install the supply item or[...]

Recommended action CAUTION: The fuser can be hot while the product is in use. Wait for the fuser to cool before handling it. 1. Open the right door. 2. Install or adjust the fuser. 3. Close the right door. Install supplies Description More than one supply is missing or is installed incorrectly. Recommended action Press the OK button to identify the[...]

If the error persists, repl ace the internal hard drive. Internal disk spinning up Description Internal disk device is spinning up its pla tter. Jobs that require disk access must wait. Recommended action No action is necessary. Load Tray <X>: [Type], [Size] Description This message appears even though th ere is media loaded in the tray. Reco[...]

Manually feed output stack Then press OK to print second sides Description The product has printed the first side of a manual du plex job and is waiting for the user to insert the output stack to print the second side. Recommended action 1. Maintaining the same orientation, remove pages from the output bin. 2. Flip document printed side up. 3. Load[...]

Recommended action To exit press Moving solenoid and motor Description The solenoid and a motor are movi ng as part of a component test. Recommended action To exit press No job to cancel Description You have pressed the stop button but the pr oduct is not actively processing any jobs. Recommended action No action necessary. Paused Description The p[...]

Please wait... Description The product is in the process of clearing data. Recommended action No action necessary. Printing CMYK samples... Description The product is printing the CMYK Sample pages. Recommended action No action necessary. Printing Color Usage Log... Description The product is printing the Color Usage log. Recommended action No acti[...]

Recommended action No action necessary. Printing Engine Test... Description The product is printing an engine test page. Recommended action No action necessary. Printing Event Log... Description The product is printing the Event Log page. Recommended action No action necessary. Printing File Directory... Description The product is printing the File[...]

Printing Help Page... Description The product is printing the Help page. Recommended action No action necessary. Printing Menu Map... Description The product is printing the Menu Map pages. Recommended action No action necessary. Printing PQ Troubleshooting... Description The product is printing th e PQ Troubleshooting pages. Recommended action No [...]

Recommended action Press the OK button to continue. Printing Supplies Status Page... Description The product is printing the Supplies Status page. Recommended action No action necessary. Printing Usage Page... Description The product is printing the Usage page. Recommended action No action necessary. Processing duplex job Do not grab paper until jo[...]

Recommended action No action necessary. Processing... copy <X> of <Y> Description The product is currently processing or printing coll ated copies. The message indicates that copy number <X> of total copies <Y> is currently being processed. Recommended action No action necessary. Ready Description The product is online and r[...]

Recommended action To perform the test, remove at least one prin t cartridge. To cancel the test, press the Stop button . To exit press Remove shipping lock from Tray 2 Description The Tray 2 shipping lock was not remo ved before you turned the product on. Recommended action Open Tray 2, and then remove the shipping lock. Replace <supply> Des[...]

Toner collection unit ◦ 10.22.70 (event code) Transfer kit Recommended action Replace the specified supply. Or, configure the product to co ntinue printing by using the Manage Supplies menu. Replace Supplies Description This alert appears only if the product is config ured to stop when a supplies reach the very low threshold. Two or more supplies[...]

Recommended action Press the OK button to find out which supplies need to be replaced. Or, configure the product to co ntinue printing by using the Manage Supplies menu. Restore Factory Settings Description The product is restoring factory settings. Recommended action No action necessary. Restricted from printing in color Description This message d[...]

Recommended action Press the Stop button when ready to stop this test. To exit press Size mismatch in Tray <X> Description The paper in the listed tray does not match the size specified for that tray. Recommended action 1. Load the correct paper. 2. Verify the paper is positioned correctly. 3. Close the tray, and then verify that the control [...]

Tray <X> empty: [Type], [Size] Description The specified tray is empty and the curren t job does not need this tray to print. ◦ X = 1 Tray 1 ◦ X = 2 Tray 2 ◦ X = 3 Tray 3 Recommended action Refill the tray at a convenient time. NOTE: This could be a false message. If the tray is loaded without removing the shipping lock, the product doe[...]

Tray <X> overfilled Description The tray is filled above the stack-height mark. ◦ X = 2 Tray 2 ◦ X = 3 Tray 3 Recommended action Remove enough paper so that the paper stac k does not exceed the limit for the tray. NOTE: If this message appears after lifter drive asse mbly was removed or replaced, make sure that the connector on the assemb[...]

Recommended action 1. Turn the product off. 2. Remove the hard drive. 3. Turn the product on. Unsupported supply in use OR Unsupported supply installed To continue, press OK Description A non-supported supply has been installed. OR One of the print cartridges is for a different HP product. ◦ XX = 00 Black print cartridge ◦ XX = 01 Cyan print ca[...]

Recommended action Turn the product off, remove the USB a ccessory, and then turn the product on. USB accessory needs too much power Remove USB and turn off then on Description A USB accessory is drawing too much electr ical current. Printing cannot continue. Recommended action Turn the product off, remove the USB a ccessory, and then turn the prod[...]

Wrong cartridge in <color> slot Description The indicated slot for a print cartridge contai ns a cartridge that is not the correct color. From left to right, the print cartridges should be installed in the following order: ◦ Yellow 10.03.25 (event code) ◦ Magenta 10.02.25 (event code) ◦ Cyan 10.01.25 (event code) ◦ Black 10.00.25 (eve[...]

Event log messages This section describes messages that only appear in the event log. For additional numeric messages, see the control-panel message section of this manual Figure 3-48 Sample event log HP LaserJet 500 color m551 Event Log Page 1 5 6 1 2 3 4 8 7 1 Product information 2 Event number 3 Date and time 4 Engine cycles 5 Event log code 6 F[...]

Print an event log NOTE: Printing an event log by using the Administration menu shows only a subset of events. To print a complete event log, use the Service menu. Print the event log from the Administration menu 1. Press the Home button. 2. Open the following menus: ● Administration ● Troubleshooting 3. Use the Down arrow button to select the [...]

View an event log NOTE: Viewing an event log by using the Administration menu shows only a subset of events. To print a complete event log, use the Service menu. View an event log from the Administration menu 1. Press the Home button. 2. Open the following menus: ● Administration ● Troubleshooting 3. Use the Down arrow button to select the View[...]

Clear jams Common causes of jams The product is jammed. Cause Solution The paper does not meet specifications. Use only paper that meets HP specifications. A component is installed incorrectly. Verify that the transfer belt and tr ansfer roller are correctly installed. You are using paper that ha s already passed through a product or copier. Do not[...]

Jam locations Use this illustration to identify locations of jams. In addition, instructions appear on the control panel to direct you to the location of jammed paper and how to clear it. NOTE: Internal areas of the product that might need to be opened to clear jams have green handles or green labels. Figure 3-49 Jam locations 1 2 3 4 5 6 1 Output-[...]

Clear jams in Tray 1 1. If jammed paper is visible in Tray 1, clear the jam by gently pulling the paper straight out. Touch the OK button to clear the message. 2. If you cannot remove the paper, or if no jammed paper is visible in Tray 1, close Tray 1 and open the right door. 3. If paper is visible inside the right door, gently pull the trailing ed[...]

4. Gently pull the paper out of the pick up area. 5. Close the right door. 474 Chapter 3 Solve problems ENWW[...]

Clear jams in the output bin area 1. If paper is visible from the output bin, grasp the leading edge and remove it. 2. If jammed paper is visible in the duplex output area, gently pull it to remove it. ENWW Clear jams 475[...]

Clear jams in Tray 2 CAUTION: Opening a tray when paper is jammed can ca use the paper to tear and leave pieces of paper in the tray, which might cause another jam. Be sure to clear jams before opening the tray. 1. Open Tray 2 and make sure that the paper is stacked correctly. Remove any jammed or damaged sheets of paper. 2. Close the tray. 476 Cha[...]

Clear jams in the right door CAUTION: The fuser can be hot while the product is in us e. Wait for the fuser to cool before clearing jams. 1. Open the right door. 2. If paper is jammed as it enters the output bin, gently pull the paper downward to remove it. 3. If paper is jammed inside the right door, gently pull the paper to remove it. ENWW Clear [...]

4. Lift the paper-feed cove r on the inside of the right door. If jammed paper is present, gently pull the paper straight out to remove it. 1 2 5. Close the paper-feed cover. 6. Gently pull the paper out of the pickup area. 7. Look for paper in the Tray 2 roller area. Push up on the two green levers to release the jam- access door. Remove any jamme[...]

8. If paper is visible entering the bottom of the fuser, gently pull downward to remove it. CAUTION: Do not touch the rollers on the transfer roller. Contaminates can affect print quality. 9. Paper could be jammed inside the fuser where it would not be visible. Grasp the fuser handles, lift up slightly, and pull straight out to remove the fuser. CA[...]

11. Close the jam-access door, and push the fuser completely into the product. 12. Close the right door. 480 Chapter 3 Solve problems ENWW[...]

Clear jams in the optional 500-sheet paper and heavy media tray (Tray 3) 1. Open Tray 3 and make sure that the paper is stacked correctly. Remove any damaged or jammed sheets of paper. 2. Close Tray 3. ENWW Clear jams 481[...]

Clear jams in the lower right door (Tray 3) 1. Open the lower right door. 2. If paper is visible, gently pull the jammed paper up or down to remove it. 3. Close the lower right door. 482 Chapter 3 Solve problems ENWW[...]

Jam causes and solutions Jams in the output bin Table 3-33 Causes and solutions for delivery delay jam Cause Solution The output-bin media- full sensor lever is damaged. Replace the paper delivery assembly. See Delivery assembly on page 228 . Poor contact of the output-bin media-full sensor connector. Reconnect the connectors of the output bi n ful[...]

Table 3-35 Causes and solutions for wrapping jams Cause Solution The fuser roller or pressur e roller is dirty. Execute a fuser roller cleaning. The guide of the fuser delivery unit is dirty. Clean the guide. The fuser roller or the pressure roller is worn or deformed. Replace the fuser. Table 3-36 Causes and solutions for fuser delivery stationary[...]

Table 3-37 Causes and solutions for re sidual media jams (continued) Cause Solution The sensor detecting a residual media jam is set incorrectly or damaged. Run the sensor test to verify which se nsor detects the medi a. Check the sensor lever to make sure it is set correctly. If it is damaged, replace the following corresponding part: ● Registra[...]

Table 3-38 Causes and solutions for pi ckup delay jams 2 (continued) Cause Solution The cassette separatio n roller is worn or deformed. Replace the cassette separation roller. Poor contact of the registration sensor connector. Reconnect the connector (J109) on the DC controller PCA. The registration sensor is defective. Run the sensor test to ve r[...]

Table 3-39 Causes and solutions for pick up stationary jams (continued) Cause Solution The spring of the registration sensor lever is unhooked. Check the spring and place it in correct position. Poor contact of the registration sensor connector. Reconnect the connector (J109) on the DC controller PCA. The registration sensor is defective. Run the s[...]

Table 3-41 Causes and solutions for duplex repick jams (continued) Cause Solution Poor contact of the duplex reverse connector. Reconnect the co nnectors of the duplex repick motor (J20), intermediate (J202 and J201) and the duplex driver PCA (J113). The duplex-repick motor is defectiv e. Replace the duplex drive assembly. Table 3-42 Causes and sol[...]

Table 3-43 Causes and solutions for pickup de lay jam 1: tray pickup (continued) Cause Solution The arm spring of the MP pickup solenoid is unhooked. Check the spring and place it in the correct position. Poor contact of the MP-pickup-solenoid drive connector. Reconnect the connectors of the tray pickup solenoid (J84) and the DC controller PCA (J10[...]

Table 3-45 Causes and solutions for pickup dela y jam 1; MP tray pickup (continued) Cause Solution The Tray 1 paper sensor is defective (SR21) . Check the Tray 1 paper sensor using the sensor monitor mode. If the sensor is defective, replace the right-door assembly. The arm spring of the MP tray pickup solenoid is unhooked. Check the spring and pla[...]

Table 3-46 Causes and solutions for pickup delay and pickup stationary jams (continued) Cause Solution The Tray 3 feed sensor lever is set incorrectly or damaged. Check the sensor lever to make sure it is set correctly. If it is damaged, replace the paper-feeder assembly. The spring of the Tray 3 feed sensor lever is unhooked. Check the spring and [...]

Solve paper handling problems Product feeds multiple sheets Product feeds multiple sheets Cause Solution The input tray is overfilled. Open the tray and verify that the paper stack is below the ma ximum stack height mark. Remove excess paper from the input tray. Print paper is sticking together. Remove paper, flex it, rotate it 180 degrees or flip [...]

Paper does not feed automatically Cause Solution The Manually Feed Prompt item is set to Always . The product always prompt s for manual feed, even if the tray is loaded. Open the tray, reload the medi a, and then close the tray. Or, change the Manually Feed Prompt setting to Unless loaded , so that the product prom pts for manual feed only when th[...]

Use manual print modes Try the following manual print modes to s ee if they solve the image-quality problems. Select a manual print mode 1. Press the Home button. 2. Open the following menus: ● Administration ● General Settings ● Print Quality ● Adjust Paper Types 3. Press the Down arrow button to highlight a paper type, and then press the [...]

Table 3-47 Print modes under the Adjust Paper Types sub menu (continued) Resistance Mode Set to Up to resolve print-qualit y issues caused by poor secondary transfer in low-humidity environments with resistive or rough surface media. Humidity Mode With glossy film, set to High when the product is in a high- humidity environment and prin t-quality d[...]

Table 3-48 MP modes under the Optimize submenu (continued) Line Voltage Set to Lo w Voltage if the product is operating in a low- voltage environment and you are having problems with print quality such as blisters in the printed image. Tray 1 Set to Alternate if you are seeing ma rks on the back side of the paper when printing from Tray 1. This set[...]

Solve image quality problems This section helps you define print-quality problems and what to do to correct them. Often print-quality problems can be handled easily by making sure that the product is maintained, using paper that meets HP specifications, or running a cleaning page. Image defects table The following examples depict letter-size paper [...]

Table 3-49 Image defects table (continued) Problem Sample Cause Solution The page is all black or a solid color. Poor contact ex ists in the primary charging bias or developing bias contacts between the print cartridge and the product. Clean each contact of the color that produces the all black or solid color. If the problem remains after cleaning,[...]

Table 3-49 Image defects table (continued) Problem Sample Cause Solution Vertical white lines appear in a particular color. The laser beam window is dirty. Clean the window and remove any foreign substances. Scratches are present on the circumference of the developing cylinder or photosensitive drum. White scratch down the page could mean the scann[...]

Table 3-49 Image defects table (continued) Problem Sample Cause Solution Image in a particular color does not print in the correct color. Poor contact ex ists in the primary charging bias or developing bias contacts between the print cartridge and the product. Clean each contact of the color that produces the missing color. If the problem remains a[...]

Table 3-49 Image defects table (continued) Problem Sample Cause Solution Some color is misregistered. The product is incorrectly calibrated. Calibrate the product. The ITB unit is defective. If th e ITB does not rotate smoothly or a cleaning malfunction occurs (ITB is dirty), replace the ITB. The drive gear of the ITB motor is worn or chipped. Chec[...]

Table 3-49 Image defects table (continued) Problem Sample Cause Solution The front of the page is dirty. The photosensitive drum is dirty. Replace the print cartridge. The fuser roller or pressure roller is dirty. Execute a Pressure roller clean mode . If the dirt does not come off, replace the fuser. NOTE: Cleaning the fuser with HP tough paper pr[...]

Clean the product Over time, particles of toner and paper accumulate inside the product. This can cause print-quality problems during printing. Cleaning the prod uct eliminates or reduces these problems. Clean the paper path and print-cartridge areas ever y time that you change the print cartridge or whenever print-quality problems occur. As much a[...]

Solve performance problems Table 3-50 Solve performance problems Problem Cause Solution Pages print but are totally blank. The document might contain blank pages. Check the document that you are printing to see if content appears on all of the pages. The product might be malfunctioni ng. To check the product, print a Configuration page. Pages print[...]

Solve connectivity problems Solve direct connect problems If you have connected the product dire ctly to a computer, check the cable. ● Verify that the cable is connected to the computer and to the product. ● Verify that the cable is not longer than 2 mete rs (6 feet). Replace the cable if necessary. ● Verify that the cable is working correct[...]

6. Are other users able to print? The problem may be workstation-sp ecific. Check the workstation network drivers, printer drivers, and redirection (capture in Novell NetWare). 7. If other users are able to print, are they using the same network operating system? Check your system for proper network operating system setup. 8. Is your protocol enabl[...]

Service mode functions Service menu The Service menu is PIN-protected for added security. On ly authorized service people have access to the Service menu. When you select Service from the list of menus, the product prompts you to enter an eight-digit PIN number ( Service Access Code ). The PIN for the HP LaserJet Enterprise 500 color M551 is 090551[...]

First level S econd level T hird level Descrip tion View Event Log Use this item to view the service event log. Clear Event Log Use this item to clear (erase) the service event log. Cycle Counts Mono Cycle Counts Use this item to reset the mono print job page count. Color Cycle Count Use this item to reset the color print job page count. Refurbish [...]

Product resets Restore factory-set defaults 1. Press the Home button. 2. Open the following menus: ● Administration ● General Settings ● Restore Factory Settings 3. Press the Down arrow button to highlight the select type of reset from a list, and then press the OK button. 4. Press the Down arrow button to highlight the Reset item, and then p[...]

● Print ◦ Print default job, stored job and quick set settings ◦ Some print job usage data ◦ Print system configuration settings ● General Security ◦ Default Authentication agent ◦ Authentication agents ◦ Policy agents ◦ Color access control Product cold reset Cold reset using the Preboot menu 1. Turn the product on. 2. Press the [...]

CAUTION: The Clean Disk option performs a disk initializati on for the entire disk. The operating system, firmware files, and third party files (among other files) will be completely lost. HP does not recommend this action. Partial Clean The Partial Clean option erases all partitions and data on the disk drive, except for the firmware repository wh[...]

5. Press the OK button again. 6. Press the back arrow button to highlight Continue , and then press the OK button. NOTE: The product initializes. Clean Disk The Clean Disk option erases the entire disk drive. CAUTION: After executing a Clean Disk option, the product is not bootable. Characteristics of a Partial Clean ● Customer-defined settings, [...]

4. Press the Down arrow button to highlight Clean Disk , and then press the OK button. 5. Press the OK button again. NOTE: When the Clean Disk operation is complete, you wi ll need to reload the product firmware. ENWW Service mode functions 513[...]

Preboot menu options If an error occurs while the product is initiali zing, an error message appears on the control-panel display. The user can access the Preboot menus. The error menu item will not be seen if an error did not occur. Table 3-51 Preboot menu options (1 of 5) Menu option First level Second level Third level Description Continue Selec[...]

Table 3-51 Preboot menu options (1 of 5) (continued) Menu option First level Second level Third level Description Administrator This item navigates to the Administrator sub menus. If authentication is required (and the user is not already signed in) the Sign In displays. The user is required to sign in. Download This item initiates a preboot firmwa[...]

Table 3-52 Preboot menu options (2 of 5) Menu option First level Second level Third level Description Administrator continued Manage Disk Clear Disk Select the Clear Disk item to enable an external device for job storage. Job storage is no rmally enabled only for the Boot device. This will be grayed out unless the 99.09.68 error is displayed. Lock [...]

Table 3-53 Preboot menu options (3 of 5) Menu option First level Second level Third level Description Administrator continued Manage Disk continued Internal Device Select the Internal Device item to erase the internal device or get status about the internal device. Secure Erase Select the Secure Erase item to erase all of the data on the disk and u[...]

Table 3-54 Preboot menu options (4 of 5) Menu option First level Second level Third level Description Administrator continued Configure LAN Select the Configure LAN item to setup the network settings for the PreBoot menu firmware upgrade. The network can be configured obtain the network settings from a DHCP server or as static. DHCP Use this item f[...]

Table 3-55 Preboot menu options (5 of 5) Menu option First level Second level Third level Description Administrator continued Startup Options Select the Startup Options item to specify options that can be set for the next time the prod uct is turned on and initializes to the to Ready state. Cold Reset Check the Cold Reset item to clear the IP addre[...]

Table 3-56 Preboot menu options (5 of 5) Menu option First level Second level Third level Description Administrator continued Startup Options continued Skip Disk Scan Check the Skip Disk Scan item to allow the product to initialize without scanning the disk. If the product is crashing on Step 4/8, checking this item may allow the prob lem to be iso[...]

Product updates To download the most recent firmwa re upgrade for the product, go to www.hp.com/ support/ cljcp5525 or www.hp.com/ go/cljcp5525_firmware . Determine the installed revision of firmware Print a configuration page to determine the installed revision of firmware. On the configuration page, look in the section ma rked Device Information [...]

USB storage device (Preboot menu) 1. Copy the xxxxxxx.bdl file to a portable USB flash memo ry storage device (thumb drive). 2. Turn the product on. 3. Press the Stop button when the Ready , Data and Attention LEDs illuminate solid. 4. Press the Down arrow button to highlight Administrator , and then press the OK button. 5. Press the Down arrow but[...]

USB storage device (control-panel menu) 1. Copy the xxxxxxx.bdl file to a portable USB flash me mory storage device (thumbdrive). 2. Turn the product on, and then wait until it reaches the Ready state. 3. Press the Home button or OK button. 4. Press the Down arrow button to highlight Device Maintenance , and then press the OK button. 5. Press the D[...]

524 Chapter 3 Solve problems ENWW[...]

4 Parts and diagrams ● Order parts, accessories, and supplies ● Part numbers ● Screws ● How to use the parts lists and diagrams ● Covers ● Right-door assembly ● Internal assemblies ● Assessories ● Alphabetical parts list ● Numerical parts list ENWW 525[...]

Order parts, accessories, and supplies You can obtain the following items directly from HP: ● Replacement parts: To order replacement parts in the U.S., go to www.hp.com/ go/hpparts/ . Outside the United States, order parts by contac ting your local authorized HP service center. ● Supplies and accessories: To order supplies in the U.S., go to w[...]

Part numbers The following list of accessories was current at the time of printing. Ordering information and availability of the accessories might change during the life of the product. Accessories Product name Product number Pa rt number 1 x 500-sheet paper feed er CF084A CF084-67901 Print cartridges and toner collection unit Product name Cartridg[...]

Customer self repair (CSR) and service kits Product name Part number Front-door assembly and name plate ● Front-door assembly ● HP Jewel ● Name plate ● Installation instructions CF081-67901 1 x 500-sheet paper feeder right door kit ● Right-door assembly ● Right-door stopper ● Right-door link ● Installation instructions CC468-67906 T[...]

Product name Part number Service fuser kit ● Fuser assembly (110 V or 220 V) ● Installation instructions CAUTION: Make sure that you order the correct ki t for the rated voltage of your product. CF081-67905 (110 V) CF081-67906 (220 V) Duplex reverse guide kit ● Duplex reverse guide ● Installation instructions CC468-67913 Secondary transfer [...]

Screws NOTE: The screw illustrations in the following table ar e for reference only. Screws might vary in size and appearance from those shown in this table. Table 4-1 Common fasteners Example Description Size Part Number Screw, tapping, truss head M4X10 XB4-7401-005CN Screw, D M3X8 XA9-1671-000CN 12 mm 12 mm How to use the parts lists and diagrams[...]

ENWW How to use the parts lists and diagrams 531[...]

Covers Figure 4-1 External covers, panels, and doors See R ight-door as sembl y Simple x model Duplex model Duple x model 1 2 3 4 5 6 7 8 9 10 12 13 13 11 14 15 16 17 532 Chapter 4 Parts and diagrams ENWW[...]

Table 4-2 External covers, panels, and doors Ref Description Part number Qty 1 Cover, rear upper RC2-5058-000CN 1 2 Plate, blanking RC2-5938-000CN 1 3 Cover, left lower RC3-1112-000CN 1 4 Cover, left front RC3-1113-000CN 1 5 Cover, rear lower RC3-1114-000CN 1 6 Cover, rear RC3-1115-000CN 1 7 Cover, right rear RC3-1116-000CN 1 8 Cover, right lower R[...]

Right-door assembly Figure 4-2 Right-door assembly Duple x model SEE MP PICK UP AS SEMBL Y (SL3) (J84) 1 2 1 3 4 5 6 7 534 Chapter 4 Parts and diagrams ENWW[...]

Table 4-3 Right-door assembly Ref Description Part number Qty 1 Right-door assembly (simplex) RM1-8167-000CN 1 1 Right-door assembly (duplex) RM1-8123-000CN 1 2 Duplexing paper feed assembly RM1-4959-000CN 2 ENWW Right-door assembly 535[...]

Internal assemblies Internal assemblies (1 of 5) Figure 4-3 Internal assemblies (1 of 5) (J9 1 ) (J9 8) (J77) (J2) (J9 1 ) (J7 5) (J9 7) (J2 5) (J2 6 1 ) See r ight-door asse mbly 32 33 29 See Pr int cartri dges and toner collecti on unit 23 6 2 9 27 24 3 5 21 4 20 19 13 25 17 18 22 1 12 10 7 8 15 30 16 31 32 28 26 11 24 536 Chapter 4 Parts and dia[...]

Table 4-4 Internal assemblies (1 of 5) Ref Description Part number Qty 1 Left cable assembly RM1-5742-000CN 1 2 Holder, CST positioning RC3-1231-000CN 1 3 Cover, front inner lower unit (CMK) RL1-1914-020CN 1 5 Cover, front inner, upper RC3-1070-000CN 1 6 Cover, front inner lower (Y) RL1-1915-000CN 1 8 Roller, rail RC2-4831-000CN 1 12 Waste toner de[...]

Internal assemblies (2 of 5) Figure 4-4 Internal assemblies (2 of 5) (FM3) (J2 6 2) (J7 2) (J9 6) (J8 9) (J7 5) (J7 1 ) (J2 6) (J2 6) (J2 7) (J2 7) (J9 7) (J9 6) (J7 6) (J7 6) (J7 3) (J7 4) (FM2) A A 17 16 10 11 33 30 1 27 7 4 3 23 25 36 35 34 20 20 21 29 31 26 5 9 18 2 30 12 23 25 20 20 21 26 22 22 5 28 13 15 14 19 13 15 24 6 32 8 32 8 538 Chapter[...]

Table 4-5 Internal assemblies (2 of 5) Ref Description Part number Qty 1 Fan cable assembly RM1-5746-000CN 1 5 Spring, tension R U6-2436-000CN 2 12 Cover RC2-5912-000CN 3 18 Cover RC2-5962-000CN 1 21 Spring, compression RU6-2316-000CN 2 23 Lever, shutter RC2-4415-000CN 2 27 Temperature sensor assembly RK2-3267-000CN 1 29 Toner sensor holder assembl[...]

Internal assemblies (3 of 5) Figure 4-5 Internal assemblies (3 of 5) (J9 2) (J4 7) (J48) (J7 80) (J9 5) (J1 2 3) (J1 1 2) (J6 3) (J8 2) (J1 30) (J6 1 ) See P aper pi ck up asse mbly See fu ser See cass ette (S W1 , SW2) (J1 1 8) (J30) (J30 3) Duple x model (S W3) (J6 1 ) 20 21 19 22 4 23 2 36 1 24 45 5 32 43 46 18 6 39 25 7 34 28 35 3 33 8 31 16 12[...]

Table 4-6 Internal assemblies (3 of 5) Ref Description Part number Qty 6 Wire, (mech) sensor protect RC2-4828-000CN 1 7 Sensor cable guide assembly RM1-8178-000CN 1 8 Cover, right lower inner RC2-5019-000CN 1 9 Link, interlock RC2-5120-000CN 1 10 Mount, interlock switch RC2-5123-000CN 1 11 Arm, interlock link switch RC2-5121-000CN 1 13 Link, interl[...]

Internal assemblies (4 of 5) Figure 4-6 Internal assemblies (4 of 5) (J20 1 ) (J 1 1 3) (FM1 ) (J 1 1 9) (J60) (J 1 1 5) (J50) (J9 8) (J1 39 ) (J 1 1 0) (J1 08) (J1 3 7) (J1 40) (J1 06) (J8 2) (J80) (J7 9) (J5 8) (J77) (J7 0) (J0) (J5 7) (J2 5 1 ) (J8 3) (J1 38) (J50 1 ) (J 1 1 1 ) (J50 3) SEE PCA S SEE PCA S SEE PCA S SEE PCA S SEE PCA S (J8 5) (J[...]

Table 4-7 Internal assemblies (4 of 5) Ref Description Part number Qty 1 Fusing connecting cable assembly RM1-5714-000CN 1 6 Fan (FM1) RK2-2416-000CN 1 7 Cable, flat 2 laser RK2-3943-000CN 1 11 Switch arm RC2-5943-000CN 1 14 MP sensor cable assembly (simplex) RM1-5750-000CN 1 14 MP sensor cable assembly (duplex) RM1-5737-000CN 1 16 Cable, flat 1 sc[...]

Internal assemblies (5 of 5) Figure 4-7 Internal assemblies (5 of 5) (J88 ) (J1 5) (J7 0 ) (J2 6 1 ) (J1 2 7) (J1 17 ) (J1 20) (J1 2 1 ) (J8 7) (J1 2 6) (J1 4 1 ) (J7 8) (J8 1 ) (J8 1 ) (J88) (M4) (J40) (M3) (J4 1 ) (M5) (J4 2) (J20) (J20 2) Duple x model (J1 3 1 ) (J6) (J2 1 ) (SR5) (J46) (M1 0) (J2 5) (M2) (J1 5) (M1 3) (J6) 20 19 15 11 14 4 12 3[...]

Table 4-8 Internal assemblies (5 of 5) Ref Description Part number Qty 1 Duplexing unit ca ble assembly RM1-5730-000CN 1 5 Auto close assembly RM1-8137-000CN 1 7 Lifter drive assembly RM1-8136-000CN 1 8 Main motor unit (M3, M4, M5) RM1-8105-000CN 3 12 Connector, drawer VS1-7258-007CN 1 13 Photo interrupter, TLP1243 WG8-5935-000CN 1 14 Cassette pape[...]

Cassette Figure 4-8 Cassette A A 2 1 546 Chapter 4 Parts and diagrams ENWW[...]

Table 4-9 Cassette Ref Description Part number Qty 1 Cassette RM1-8125-000CN 1 ENWW Internal assemblies 547[...]

Paper pickup assembly Figure 4-9 Paper pickup assembly (J8 2) (J5) (SR20) (J5) 2 1 3 548 Chapter 4 Parts and diagrams ENWW[...]

Table 4-10 Paper pickup assembly Ref Description Part number Qty 1 Paper pickup assembly (simplex) RM1-8168-000CN 1 1 Paper pickup assembly (duplex) RM1-8124-000CN 1 3 Photointerrupter WG8-5935-000CN 1 ENWW Internal assemblies 549[...]

PCAs Figure 4-10 PCAs 1 2 3 4 5 550 Chapter 4 Parts and diagrams ENWW[...]

Table 4-11 PCAs Ref Description Part number Qty 1 Lower HVPS-D PCA RM1-8087-000CN 1 2 Upper HVPS-T PCA (sim plex) RM1-8089-000CN 1 2 Upper HVPS-T PCA (duplex) RM1-8088-000CN 1 3 DC controller PCA RM1-8104-000CN 1 4 Low-voltage power supply 110V RM1-8091-000CN 1 4 Low-voltage power supply 220V RM1-8093-000CN 1 5 Inner connecting PCA (ICB) RM1-8143-0[...]

Assessories 1 x 500-sheet paper feeder Figure 4-11 1 x 500-sheet paper feeder A1 1 A1 9 A1 8 A09 A0 7 A08 A1 0 A2 5 A2 4 A2 2 A1 2 A20 A1 6 A2 1 A1 5 A1 4 A04 A03 A06 A1 7 A1 7 A05 A03 A04 A0 2 A0 1 1 A2 3 A1 3 A2 6 552 Chapter 4 Parts and diagrams ENWW[...]

Table 4-12 1 x 500-sheet paper feeder Ref Description Part number Qty 1 1 x 500-sheet feeder replacement kit CF084-67901 1 ENWW Assessories 553[...]

Paper feeder covers Figure 4-12 Paper feeder covers 10 10 10 10 10 9 6 2 1 8 7 5 4 3 554 Chapter 4 Parts and diagrams ENWW[...]

Table 4-13 Paper feeder covers Ref Description Part number Qty 1 Cover, left RC2-5428-000CN 1 2 Cover, rear RC2-5429-000CN 1 3 Cover, right RC2-5427-000CN 1 4 Cover, front upper RC2-5425-000CN 1 5 Cover, front right RC2-5426-000CN 1 6 Stopper, door RC2-5417-000CN 1 7 Cover, left front RC2-5430-000CN 1 8 Link, door right RC2-5435-000CN 1 9 Right doo[...]

Paper feeder main body Figure 4-13 Paper feeder main body (J1 0) (J40 1 ) (J406) (J 404) (J40 5) (J1 5D) (J2 1 ) (J1 4) (J1 3D) (J1 8D) (J1 1D) (J1 9D) (J1 3L) (J20) A A 12 10 8 7 1 1 2 9 3 1 A04 6 5 4 See P aper feeder P CA 13 14 556 Chapter 4 Parts and diagrams ENWW[...]

Table 4-14 Paper feeder main body Ref Description Part number Qty 1 Lifter base assembly RM1-5913-000CN 1 2 Paper feed assembly RM1-6194-030CN 1 4 Paper pickup assembly RM1-5919-000CN 1 5 Paper feed roller assembly CF081-67913 1 6 Roller, paper pickup CF081-67913 1 13 Drawer connector holder VS1-7257-007CN 1 14 Holder, drawer conne ctor RC2-5416-00[...]

Paper feeder cassette Figure 4-14 Cassette 1 558 Chapter 4 Parts and diagrams ENWW[...]

Table 4-15 Cassette Ref Description Part number Qty 1 Cassette assembly (Tray 3) RM1-6198-000CN 1 ENWW Assessories 559[...]

Paper feeder PCA Figure 4-15 Paper feeder PCA 1 560 Chapter 4 Parts and diagrams ENWW[...]

Table 4-16 Paper feeder PCA Ref Description Part number Qty 1 PCA, paper feeder driver RM1-5839-000CN 1 ENWW Assessories 561[...]

Alphabetical parts list Table 4-17 Alphabetical parts list Description Part number Table and page 1 x 500-sheet feeder re placement kit CF084-67901 1 x 500-sheet paper feeder on page 553 Arm, interlock link switch RC2-5121-000CN Internal assemblies (3 of 5) on page 541 Auto close assembly RM1-8137-000CN Internal assemblies (5 of 5) on page 545 Cabl[...]

Table 4-17 Alphabetical parts list (continued) Description Part number Table and page Cover, left front RC2-5430-000CN Paper feeder covers on page 555 Cover, left lower RC3-1112-000CN External covers, panels, and doors on page 533 Cover, rear RC3-1115-000CN External covers, panels, and doors on page 533 Cover, rear RC2-5429-000CN Paper feeder cover[...]

Table 4-17 Alphabetical parts list (continued) Description Part number Table and page Duplexing unit cable assembly RM1-5730-000CN Internal assemblies (5 of 5) on page 545 Fan (FM1) RK2-2416-000CN Internal assemblies (4 of 5) on page 543 Fan (FM2, FM3) RK2-2418-000CN Internal assemblies (2 of 5) on page 539 Fan cable assembly RM1-5746-000CN Interna[...]

Table 4-17 Alphabetical parts list (continued) Description Part number Table and page Link, interlock RC2-5119-000CN Internal assemblies (3 of 5) on page 541 Link, interlock RC2-5118-000CN Internal assemblies (3 of 5) on page 541 Link, interlock RC2-5122-000CN Internal assemblies (3 of 5) on page 541 Lock, door RC2-5937-000CN Internal assemblies (1[...]

Table 4-17 Alphabetical parts list (continued) Description Part number Table and page PCA, paper feeder driver RM1-5839-000CN Paper feeder PCA on page 561 Photo interrupter, TL P1243 WG8-5935-000CN Internal assemblies (5 of 5) on page 545 Photointerrupter WG8-5935-000CN Paper pickup assembly on page 549 Pick up lower guide assembly RM1-8132-000CN I[...]

Table 4-17 Alphabetical parts list (continued) Description Part number Table and page Spring, compression RU6-2316-000CN Internal assemblies (2 of 5) on page 539 Spring, ground RU6-2237-000CN Internal assemblies (1 of 5) on page 537 Spring, tension RU7-2192-000CN Internal assemblies (1 of 5) on page 537 Spring, tension RU6-2436-000CN Internal assem[...]

Numerical parts list Table 4-18 Numerical parts list Part number Description Table and page CF081-67912 Formatter assembly kit (China) PCAs on page 551 CF081-67913 Paper feed roller assembly Paper feeder main body on page 557 CF081-67913 Roller, paper pickup Paper feeder main body on page 557 CF081-69001 Formatter as sembly kit (exchange) PCAs on p[...]

Table 4-18 Numerical parts list (continued) Part number Description Table and page RC2-5426-000CN Cover, front right Paper feeder covers on page 555 RC2-5427-000CN Cover, right Paper feeder covers on page 555 RC2-5428-000CN Cover, left Paper feeder covers on page 555 RC2-5429-000CN Cover, rear Paper feeder covers on page 555 RC2-5430-000CN Cover, l[...]

Table 4-18 Numerical parts list (continued) Part number Description Table and page RC3-1117-000CN Cover, right lower External covers, panels, and doors on page 533 RC3-1118-000CN Cover, upper External covers, panels, and doors on page 533 RC3-1231-000CN Holder, CST positioning Internal assemblies (1 of 5) on page 537 RK2-2415-000CN Stepping motor, [...]

Table 4-18 Numerical parts list (continued) Part number Description Table and page RM1-5696-000CN Waste toner detect assembly Internal assemblies (1 of 5) on page 537 RM1-5700-000CN Toner sensor holder assembly Internal assemblies (2 of 5) on page 539 RM1-5705-000CN Rear Pre-exposure PCA assembly Internal assemblies (5 of 5) on page 545 RM1-5714-00[...]

Table 4-18 Numerical parts list (continued) Part number Description Table and page RM1-6198-000CN Cassette assembly (Tray 3) Cassette on page 559 RM1-8087-000CN Lower HVPS-D PCA PCAs on page 551 RM1-8088-000CN Upper HVPS-T PCA (duplex) PCAs on page 551 RM1-8089-000CN Upper HVPS-T PCA (simplex) PCAs on page 551 RM1-8091-000CN Low-voltage power suppl[...]

Table 4-18 Numerical parts list (continued) Part number Description Table and page RM1-8167-000CN Right-door assembly (simplex) Right-door assembly on page 535 RM1-8168-000CN Paper pickup assembly (simplex) Paper pickup assembly on page 549 RM1-8169-000CN Fusing (fixing) drive assembly (simplex) Internal assemblies (5 of 5) on page 545 RM1-8173-000[...]

574 Chapter 4 Parts and diagrams ENWW[...]

A Service and support ● Hewlett-Packard limited warranty statement ● HP's Premium Protection Warranty: LaserJet print cartridge limited warranty statement ● Color LaserJet Fuser Kit, Toner Collection Unit, and Transfer Kit Limited Warranty Statement ● Data stored on the print cartridge ● End User License Agreement ● OpenSSL ● Cus[...]

Hewlett-Packard limited warranty statement HP PRODUCT DURATION OF LIMITED WARRANTY HP LaserJet Enterprise 500 color M551n, M551dn, M551xh One-year on-site warranty HP warrants to you, the end-user customer, that HP hardware and accessories will be free from defects in materials and workmanship after th e date of purchase, for the period specified a[...]

THE WARRANTY TERMS CONTAINED IN THIS ST ATEMENT, EXCEPT TO THE EXTENT LAWFULLY PERMITTED, DO NOT EXCLUDE, RESTRICT OR MODIFY AND ARE IN ADDITION TO THE MANDATORY STATUTORY RIGHTS APPLICABLE TO THE SALE OF THIS PRODUCT TO YOU. ENWW Hewlett-Packard limited warranty statement 577[...]

HP's Premium Protection Warranty: LaserJet print cartridge limited warranty statement This HP product is warranted to be free from defects in materials and workmanship. This warranty does not apply to products that (a) have been refilled, refurbished, remanufactured or tampered with in any way, (b) experience proble ms resulting from misuse, i[...]

Color LaserJet Fuser Kit, Toner Collection Unit, and Transfer Kit Limited Warranty Statement This HP product is warranted to be free from de fects in materials and workmanship until the printer provides a low-life indicator on the control panel. This warranty does not apply to products that (a) have been refurbished, re manufactured or tampered wit[...]

Data stored on the print cartridge The HP print cartridges used with this product contain a memory chip that assists in the operation of the product. In addition, this memory chip collects a limited set of information about the usage of the product, which might include the following: the date when the print ca rtridge was first installed, the date [...]

End User License Agreement PLEASE READ CAREFULLY BEFORE USING THIS SOFTWARE PRODUCT: This End-User License Agreement (“EULA”) is a contract between (a) you (eit her an individual or the entity you represent) and (b) Hewlett-Packard Company (“HP”) that governs your use of the so ftware product (“Software”). This EULA does not apply if th[...]

4. TRANSFER. a. Third Party Transfer. The initial end user of th e HP Software may make a one-time transfer of the HP Software to another end user. Any tran sfer will include all component parts, media, User Documentation, this EULA, and if applicable , the Certificate of Authenticity. The transfer may not be an indirect transfer, such as a consign[...]

© 2009 Hewlett-Packard Development Company, L.P. Rev. 04/09 ENWW End User License Agreement 583[...]

OpenSSL This product includes software developed by th e OpenSSL Project for use in the OpenSSL Toolkit (http://www.openssl.org/) THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICUL AR PURPOSE[...]

Customer self-repair warranty service HP products are designed with many Customer Se lf Repair (CSR) parts to minimize repair time and allow for greater flexibility in perf orming defective parts replacement. If during the diagnosis period, HP identifies that the repair can be accomplishe d by the use of a CSR part, HP will ship that part directly [...]

Customer support Get telephone support for your country/region Have the product name, serial number, date of purchase, and problem description ready. Country/region phone numbers are on the flyer that was in the box with your product or at www.hp.com/ support/ . Get 24-hour Internet support www.hp.com/ support/lj500colorM551 Get support for product[...]

B Product specifications ● Physical specifications ● Power consumption, electrical spec ifications, and acoustic emissions ● Environmental specifications ENWW 587[...]

Physical specifications Table B-1 Product dimensions Product Height Depth Width Weight HP LaserJet Enterprise 500 color M551n 389 mm (15.3 in) 489 mm (19.3 in) 514 mm (20.2 in) 36.5 kg (80.5 lb) HP LaserJet Enterprise 500 color M551dn 408 mm (16.1 in) 489 mm (19.3 in) 5 14 mm (20.2 in) 37 kg (81.6 lb) HP LaserJet Enterprise 500 color M551xh 575 mm [...]

C Regulatory information ● FCC regulations ● Environmental product stewardship program ● Declaration of conformity ● Certificate of volatility ● Safety statements ENWW 589[...]

FCC regulations This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC ru les. These limits are designed to provide reasonable protection against harmful interference in a residential instal lation. This equipment generates, uses, and can radiate radio frequency energy. If thi[...]

Environmental product stewardship program Protecting the environment Hewlett-Packard Company is committed to providin g quality products in an environmentally sound manner. This product has been designed with several attributes to mi nimize impacts on our environment. Ozone production This product generates no appreciable ozone gas (O 3 ). Power co[...]

HP is committed to providing inventive, high-quali ty products and services that are environmentally sound, from product design and manufacturing to di stribution, customer use and recycling. When you participate in the HP Planet Partners program, we ensure your HP LaserJet print cartridges are recycled properly, processing them to recover plastics[...]

call 1-800-ASK-USPS or visit www.usps.com . For the location of your nearest FedEx shipping center/ store, please call 1-800-GOFEDEX or visit www.fedex.com . For more information, or to order additional labels or boxes for bulk returns, visit www.hp.com/ recycle or call 1-800-340-2445. Information su bject to change without notice. Residents of Ala[...]

For recycling information, you can go to www.hp.com/ recycle , or contact your local authorities or the Electronics Industries Alliance: www.eiae.org . Disposal of waste equipment by users in private households in the European Union This symbol on the product or on its packaging indicates that this pr oduct must not be disposed of with your other h[...]

Declaration of conformity Declaration of Conformity according to ISO/IEC 17050-1 and EN 17050-1 Manufacturer's Name: Hewlett-Packard Company DoC#: BOI SB-0802-03-rel.1.0 Manufacturer's Address: 11311 Chinden Boulevard Boise, Idaho 83 714-1021, USA declares, that the product Product Name: HP LaserJet Enterprise 500 color M551n HP LaserJet [...]

This Device complies with Part 15 of the FCC Rules. Operation is subject to the foll owing two Conditions: (1) this device may n ot cause harmful interference, and (2) this device mu st accept any interference received, incl uding interference that may cause undesire d operation. 1. The product was tested in a typical configuration with Hewlett-Pac[...]

Certificate of volatility This is a statement regarding the vo latility of customer data stored in memory. It also outlines how to securely erase data from the product. Types of memory Volatile memory The product utilizes 1024 MB of volatile memory used for temporary storage during the process of jobs, and for applications running on the operatin g[...]

Safety statements Laser safety The Center for Devices and Radiological Health (CDR H) of the U.S. Food and Drug Administration has implemented regulations for laser products manu factured since August 1, 1976. Compliance is mandatory for products marketed in the United States . The device is certified as a “Class 1” laser product under the U.S.[...]

EMC statement (Korea) Laser statement for Finland Luokan 1 laserlaite Klass 1 Laser Apparat HP LaserJet Enterprise 500 color M551n, M551dn, M551xh, laserkirjoitin on käyttäjän kannalta turvallinen luokan 1 laserlaite. Normaalissa käytö ssä kirjoittimen suojakotelointi estää lasersäteen pääsyn laitteen ulkopuolelle. Laitteen turvallisuus [...]

GS statement (Germany) Das Gerät ist nicht für die Benutzung im unmittelbaren Gesichtsfeld am Bildschirmarbeitsplatz vorgesehen. Um störende Reflexionen am Bildschi rmarbeitsplatz zu vermeiden, darf dieses Produkt nicht im unmittelbaren Gesichtsfeld platziert warden. Substances Table (China) Restriction on Hazardous Substances statement (Turkey)[...]

Index A A3 paper 328, 364 A4 paper - override 328, 364 A4 paper - wide 349 A4/letter override 328, 364 AC to DC conversion 12 accessories ordering 526 part numbers 527 screws 530 accessories installed, information 306 acoustic specifications 588 adjust color 333 Adjust for Daylight Savings 331 Administration menu, control panel 329 after service ch[...]

print cartridge 27 protection for 14, 16 configuration page 246 configuration pages information 306 printing 303 connectors DC controller PCA 284 control panel Administration menu 329 assembly, removing 116 Backup/Restore menu 388 Calibrate/Cleaning menu 388 Display Settings menu 355 General Settings menu 331 Manage Supplies menu 356 Manage Trays m[...]

European Union, waste disposal 594 event log 246 clear 470 information 306 print 469 view 470 event-log messages 468 exhaust fans 9 F faded print 497 failure detection 57 drive circuit 18 fuser 18 lasers and scanners 20 low-voltage power supply 14 motors 8 See also jams fans cartridge, removing 131 DC controller 7 delivery, removing 131 exhaust 9 i[...]

assembly (Y/M), removing 186 failure conditions 20 operations 19 last rotation period 3 latent image formation 22 LEDs. See lights left cover, removing 111 letter/A4 override 328, 364 license, software 581 lifter drive assembly removing 173 light print, troubleshooting 497 lights formatter 246 troubleshooting with 246 line feed 351 lines, troublesh[...]

multifeed prevention 67 presence detection 46, 66 size detection 62 stop in path for testing 279 type detection 52 width detection 47 wrinkled 501 paper feeder 38 cassette lift operation 64 electrical components 60 feed operations 50 jam detection 68 multifeed prevention 48, 67 optional 1 x 500-sheet 59 pickup and feed operation 61 skew feed preven[...]

checklists 73 control panel assembly 116 DC controller PCA 160 delivery assembly 228 delivery fan 131 developing disengagement motor 170 drawer connector 235 drum motor 1 206 drum motor 2 or 3 208 duplex drive assembly 233 environmental sensor 131 formatter PCA 81 front door assembly 103 front top cover 122 fuser 87 fuser drive assembly 223 fuser m[...]

Size/Type Prompt 325, 363 skew-feed prevention 51 skewed pages troubleshooting 501 sleep settings voltage for 13 voltage too high during 14 Sleep/Auto Off Timer 331 Smart Duplexing 327 smeared toner, troubleshooting 501 software software license agreement 581 solenoids DC controller 6 paper feeder 60 pickup, feed, and delivery 0 solve problems 237 [...]

power 244 print quality issues 497 process 243 repeating defects 308 reports and tools 246 skewed pages 501 status page 246 text 501 toner smear 501 USB cables 504 wrinkles 501 See also diagnostics Troubleshooting menu, control panel 382 two-sided printing - duplex blank pages 327 U updates, downloading product 521 USB Firmware Upgrade menu, contro[...]

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*CF079-90942* *CF079-90942* CF0 7 9-90 9 4 2[...]