HP (Hewlett-Packard) 4500 manual

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Infelizmente, pequenos usuários tomam o tempo para ler o manual HP (Hewlett-Packard) 4500, e um bom manual não só permite conhecer uma série de funcionalidades adicionais do dispositivo, mas evita a formação da maioria das falhas.

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Primeiro, o manual HP (Hewlett-Packard) 4500 deve conte:
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- instruções de utilização, regulação e manutenção do dispositivo HP (Hewlett-Packard) 4500
- sinais de segurança e certificados que comprovam a conformidade com as normas pertinentes

Por que você não ler manuais?

Normalmente, isso é devido à falta de tempo e à certeza quanto à funcionalidade específica do dispositivo adquirido. Infelizmente, a mesma ligação e o arranque HP (Hewlett-Packard) 4500 não são suficientes. O manual contém uma série de orientações sobre funcionalidades específicas, a segurança, os métodos de manutenção (mesmo sobre produtos que devem ser usados), possíveis defeitos HP (Hewlett-Packard) 4500 e formas de resolver problemas comuns durante o uso. No final, no manual podemos encontrar as coordenadas do serviço HP (Hewlett-Packard) na ausência da eficácia das soluções propostas. Atualmente, muito apreciados são manuais na forma de animações interessantes e vídeos de instrução que de uma forma melhor do que o o folheto falam ao usuário. Este tipo de manual é a chance que o usuário percorrer todo o vídeo instrutivo, sem ignorar especificações e descrições técnicas complicadas HP (Hewlett-Packard) 4500, como para a versão papel.

Por que ler manuais?

Primeiro de tudo, contem a resposta sobre a construção, as possibilidades do dispositivo HP (Hewlett-Packard) 4500, uso dos acessórios individuais e uma gama de informações para desfrutar plenamente todos os recursos e facilidades.

Após a compra bem sucedida de um equipamento / dispositivo, é bom ter um momento para se familiarizar com cada parte do manual HP (Hewlett-Packard) 4500. Atualmente, são cuidadosamente preparados e traduzidos para sejam não só compreensíveis para os usuários, mas para cumprir a sua função básica de informação

Índice do manual

  • Página 1

    hp color La serJet 4 5 5 0/4 5 00 seri es quic k r ef er ence serv ice guide www.GovTechMedia.com[...]

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    EN www.GovTechMedia.com[...]

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    HP Color LaserJet 4550/4500 Quic k Ref erence Ser vice Guide Vo l u m e I No vember 2000 Edition www.GovTechMedia.com[...]

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    Hewlett-Packard Company 11311 Chinden Boulevard Boise, Idaho 83714 U.S.A. © Copyright Hewlett-P ackard Company 2000 All Rights Reserved. Reproduction, adaptation, or translation without prior written per mission is prohibited, except as allowed under the cop yr ight laws. Publication number 5963-7921 First edition, Nov ember 2000 Wa r r a n t y Th[...]

  • Página 5

    EN iii Contents 1 T roub leshooting control panel messages . . . . . . . . . . . . . 5 2 Ser vice tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 3 P ower supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 4 Input/Output (I/O) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 5 Media[...]

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    iv EN Or dering other man uals This HP Color LaserJet F amily Quick Ref erence Ser vice Guide has been created to help the HP LaserJet service engineer quickly troubleshoot common printer problems . While this ref erence is intended to provide inf ormation the ser vice engineer will need for on-site repair of HP LaserJet color products, it is not i[...]

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    EN Overview 5 1 T roub leshooting control panel messages Overview This chapter provides a list of control panel messages f or the HP Color LaserJet printers. Alphabetical messages are listed first, follo wed by numerical messages. Control panel messages that are self-e xplanatory are not included. See the service manual for more detailed inf or mat[...]

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    6 Chapter 1 Troubleshooting control panel messages EN Pre-tr oubleshooting c hec klist W ARNING! Alwa ys tur n off, then unplug, the printer before servicing. Current is present in the DC power supply whene ver the printer is plugged in. Note The customer is responsible f or ensuring that the maintenance units are in good condition. Befo re trouble[...]

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    EN Pre-troubleshooting checklist 7 1 • Has the printer hardware or software configuration changed? Or could the problem be associated with an y specific software? – Contact the Customer Care Center for softw are-related problems (see Chapter 11, “ Ser vices and suppor t resources ” ). • Could the problem be related to network configuratio[...]

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    8 Chapter 1 Troubleshooting control panel messages EN Contr ol panel messages Alphabetical messages A CCESS DENIED MENUS LOCKED Appears fo r approximately 5 seconds when a user has attempted to select a menu v alue while the printer control panel locking is enabled. l See the system administrator f or access to the printer control panel. B AD DUPLE[...]

  • Página 11

    EN Control panel messages 9 1 CANNO T DUPLEX CLOSE REAR BIN The printer cannot duplex because the rear output bin is open. 1. Close the rear output bin door . 2. If the error message does not clear , turn the printer off and then on. CANNO T DUPLEX CHECK REAR BIN alternates with CANNO T DUPLEX CHECK P APER The printer cannot duplex because the rear[...]

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    10 Chapter 1 Troubleshooting control panel messages EN CLOSE MIDDLE FRONT DRA WER The draw er that holds the intermediate transfer belt is open. This draw er is called the ITB dra wer , but is ref erred to as the middle front draw er f or end users. Switch SW1 indicates the draw er is open. When the draw er is closed, a plastic protrusion on the lo[...]

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    EN Control panel messages 11 1 CLOSE UPPER REAR DRA WER Switch SW5 monitors the closing of the printer ’ s upper rear door (this door allows y ou to access the fusing assemb ly). When the fusing door is closed, a tab on the rear door pushes a door switch actuator that runs along the left-side of the pr inter and closes SW5. 1. Close the upper rea[...]

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    12 Chapter 1 Troubleshooting control panel messages EN CLOSE UPPER FRONT DRA WER The draw er that holds the imaging drum (the drum drawer) is open. Switch SW3 indicates that the draw er is open. When the dra wer is closed, a plastic protrusion on the lower left corner of the drawer piv ots an arm that allows SW3 to toggle to the open position. 1 Op[...]

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    EN Control panel messages 13 1 CONTINUOUS P A GE PRESS CANCEL JOB (4500) The printer configuration page is being printed continuously . l Press [Cancel Job] to terminate continuous configuration page printing and retur n the printer to the READY state. Note The HP LaserJet 4550 P aper P ath test r uns from the Inf ormation Menu. D A T A RECEIVED Th[...]

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    14 Chapter 1 Troubleshooting control panel messages EN DRUM LIFE LO W REPLA CE DRUM KIT (4500) -or- DRUM LIFE LO W ORDER DR UM KIT (4550) Approx imately 80 percent of the drum ’ s life has been consumed. l Continue printing and order the drum kit. Dr um replacement will be required in the near future. DRUM LIFE OUT REPLA CE DRUM KIT The imaging d[...]

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    EN Control panel messages 15 1 FUSER LIFE LO W REPLA CE KIT (4500) -or- FUSER LIFE LO W ORDER KIT (4550) Approx imately 95 percent of the fuser ’ s life has been consumed. l Continue printing, or replace the fuser kit. Fuser replacement will be required in the near future. FUSER LIFE OUT REPLA CE KIT The fuser has reached the end of its ex pected[...]

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    16 Chapter 1 Troubleshooting control panel messages EN MEMOR Y SETTINGS CHANGED The I/O buff er ing settings were changed by the printer because there is not enough memory availab le to use the pre vious settings. l No action required. Howe ver , adding pr inter memor y might prev ent this from occurring. MEMOR Y SHORT A GE JOB CLEARED The av ailab[...]

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    EN Control panel messages 17 1 P A GE CANNO T PRINT NO W alternates with RETR Y WHEN PRINTING ST OPS An internal page has been requested while the pr inter is printing an incoming job . Interrupting the job to print the inter nal page would corrupt the job ’ s environment and potentially cause the job to finish printing incorrectly after the inte[...]

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    18 Chapter 1 Troubleshooting control panel messages EN PRINTING CALIBRA TION PA G E The color calibration page is being printed. The printer retur ns to the READY stage upon completion of this page. l No action is required. PRINTING CONFIGURA TION P A GE The configuration page is being printed. The printer retur ns to the READY stage upon completio[...]

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    EN Control panel messages 19 1 PRINTING LASERJET DEMO 2 (4500 only) The demo page is being printed. The printer retur ns to the READY state upon completion of this page. l No action is required. PRINTING A CCESSORIES The accessories page is being pr inted. The printer retur ns to the READY state upon completion of this page. l No action is required[...]

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    20 Chapter 1 Troubleshooting control panel messages EN REINST ALL TRANSFER BEL T This message occurs if you do not ha ve the intermediate transf er belt installed in the printer or if the home position marks (on the ITB) are not detected by sensor PS5. The ITB must be rotating bef ore PS5 is able to detect its “ home positioning ” marks. Both t[...]

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    EN Control panel messages 21 1 REMO VE P APER T OP OUTPUT BIN The top output bin holds 250 sheets of paper . Sensor PS9 along with its sensor flag detects the height of the output paper stack. P erform the action items if this message appears with no paper in the output bin. 1. V erify that the PS9 sensor flag and ar m mov e freely and its mov emen[...]

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    22 Chapter 1 Troubleshooting control panel messages EN SELECT LANGU A GE The language selection power-up k ey sequence has been entered. The printer will prompt the user to select a new control panel displa y language once it has completed its initialization process. l Select a new language when prompted. SER VICE MODE The Service Mode power-up ke [...]

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    EN Control panel messages 23 1 T ONER POSITION [COLOR] = [ST A TE] Indicates the current state of a par ticular toner car tridge. This message appears when [Select] is pressed while a TONER LOW/OUT message appears. l If necessary , replace the specified toner car tridge. TRANSFER KIT LO W REPLAC E KIT (4500) -or- TRANSFER KIT LO W ORDER KIT (4550) [...]

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    24 Chapter 1 Troubleshooting control panel messages EN TRA Y X SIZE [SIZE] Media has been loaded into the specified tra y . The most recently configured size will be displa yed with an asterisk next to it. Action: 1. [ – V alue +] might be used to view all possib le media sizes . 2. Pressing [Select] will select the currently display ed size. Pre[...]

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    EN Control panel messages 25 1 Numerical messages 13.XX Jam Note Refer to the jam troub leshooting section for the complete details about locating jams. XX Description: 4500 4550 0 1 Jam in input f eed area 1 5 Jam in fusing area 2 6 Jam in fusing area 3 10 Jam in duple x reversing unit 4 11 Jam in duple x feed unit 5 12 Jam in duple x paper feed a[...]

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    26 Chapter 1 Troubleshooting control panel messages EN 13.XX Jam alternates with CHECK MIDDLE FRONT DOORS Media is jammed in the transf er belt area or media is not picking. 1 Open the ITB draw er and remov e any jammed media. 2 Check f or media between the transfer roller and the fusing assembly . 13.XX Jam alternates with CHECK FRONT DUPLEX DRA W[...]

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    EN Control panel messages 27 1 13.1 Jam OPEN MIDDLE FRONT DRA WER (4500) 13.5 Jam OPEN MIDDLE FRONT DRA WER (4550) alternates with CHECK IN REAR OF DRA WER A jam has occurred inside the ITB draw er area. (The ITB dra wer is also referred to as the middle f ront dra wer f or end users.) The jam might be located in the fuser area or between the trans[...]

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    28 Chapter 1 Troubleshooting control panel messages EN 22 P ARALLEL I/O BUFFER O VERFLO W alternates with PRESS GO T O CONTINUE Indicates the parallel buff er has overflo wed. 1. The current data in the print buff er will be lost. 2. Press [Go] to resume printing and then resend the job. 40 EIO X D A T A ERROR alternates with PRESS GO T O CONTINUE [...]

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    EN Control panel messages 29 1 41.5 UNEXPECTED P APER TYPE alternates with CHECK P APER IN TRA Y X A tra y is configured f or a specific media type, b ut the printer detects a different media type loaded. The most common cause f or this error is a jam at registration plate (under the ITB) where the customer does not remov e the paper . The engine t[...]

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    30 Chapter 1 Troubleshooting control panel messages EN 49.ERROR XXXX CYCLE PO WER (continued) Note The printer control panel will display 49 (FFFF) and the displa y will be dark if the ribbon cable is not connected. T o verify that the f ormatter is functioning proper ly , r un the formatter tests av ailable in the diagnostics mode. If the f ormatt[...]

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    EN Control panel messages 31 1 49 04E7 (continued) Note This error is primar ily associated with the fir mware and should not require a new f or matter . 49 04FF A large print job (800 to 1200 pages) or complex gr aphics can cause the printer to quit printing. T wo courses of actions are a vailab le: l Determine the page that is causing the failure[...]

  • Página 34

    32 Chapter 1 Troubleshooting control panel messages EN 49 04FF (continued) Putting the printer in Lossy mode might affect perf or mance and pr int quality . 49 FFFF Issue repor ted by lif e test when replacing the fuser . This error might also occur during the boot cycle. l Replace the formatter . 49FFO X This error message allows y ou to scroll th[...]

  • Página 35

    EN Control panel messages 33 1 50.x Fuser Error (continued) X Description: 1 Low temperature error 2 Fuser warm-up ser vice 3 High fuser temperature 4 F aulty fuser 5 Fuser voltage mismatch (v er ify that you hav e NO T installed a 110V fuser in a 220V printer or vice-versa). 6 Fuser heater cutoff 7 Fuser motor malfunction (see recommended action f[...]

  • Página 36

    34 Chapter 1 Troubleshooting control panel messages EN 50.7 FUSER ERROR (continued) 4 If the error persists, Observe the drive shaft of M1 while pow ering on the printer . If this shaft DOES NO T rotate, your f ailure is related to the motor drive circuitry . Ref erring to the printer ’ s wir ing diagram, v erify that connectors J102 and J106 of [...]

  • Página 37

    EN Control panel messages 35 1 52 SCANNER ERROR (4550) -or- 52 PRINTER ERROR (4550) Indicates that a scanner error has occurred. 1 T urn the pr inter off and on to reset the printer. 2 V erify connectors J551 on the beam detect PCB, J1103 on the scanner motor , and J1006 on the DC controller are fully seated and connected correctly . 3 Replace the [...]

  • Página 38

    36 Chapter 1 Troubleshooting control panel messages EN 54.1 PRINTER ERROR (continued) CA UTION 54.1 errors can be caused by damaging the thermistor while clearing fuser jams. 4 Make sure there is not a fluctuation in the po wer supply to the printer . Check that the electrical specifications are met. 5 Replace the low-v oltage power supply . 54.2 P[...]

  • Página 39

    EN Control panel messages 37 1 54.2 PRINTER ERROR (continued) Note The printer CANNOT oper ate with the top cov er removed unless the carousel brake has been released or remo ved. 2 V erify the carousel drive motor wiring har ness is firmly seated into connector J203 of the dev eloping PCB. 3 V erify PS10 is working correctly and not excessiv ely d[...]

  • Página 40

    38 Chapter 1 Troubleshooting control panel messages EN control arm of the imaging dr um draw er to J1010 of the DC controller PCB. V er ify that the cable is firmly seated into the J1010 of the DC controller PCB. 3 If the error persists, replace the density sensor assembly . 54.4 PRINTER ERROR Optional equipment is not recognized. l T urn the pr in[...]

  • Página 41

    EN Control panel messages 39 1 54.6 PRINTER ERROR (continued) 4 If the error persists, v erify that all connectors are fir mly seated. 5 Replace ITB draw er . 55 DC CONTROLLER ERR OR The print engine is not communicating with the formatter . The communication link between the f or matter and DC controller was lost. This can occur due to a timing er[...]

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    40 Chapter 1 Troubleshooting control panel messages EN 57.2 F AN F AILURE The printer detected that the fan (an e xhaust f an located in the upper , right rear cor ner of the printer) was not rotating. This f an, operates off +24Vdc and is enabled b y the DC controller PCB ’ s micro-processor . 1 T urn the pr inter off and on to reset the printer[...]

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    EN Control panel messages 41 1 62 NO SYSTEM Indicates there is a printer fir mware problem. Either there is no firmware DIMM installed or the DIMM has failed. If the f or matter was just replaced, make sure all DIMMs ha v e been mov ed from the old formatter to the new one . 1 T urn the pr inter off and on to reset the printer. 2 Reseat the firmwar[...]

  • Página 44

    42 Chapter 1 Troubleshooting control panel messages EN 68 NVRAM FULL CHECK SETTINGS Indicates that a non-volatile stor age de vice is full. Some settings might hav e been reset to factory defaults. 1 Check printer settings to determine which values hav e been changed. 2 Clear the message by pressing [Go] . 79 SER VICE (XXXX) PRINTER ERROR Descripti[...]

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    EN Troubleshooting paper path problems 43 1 T r oubleshooting paper path pr oblems P aper jams P aper jams are posted if paper f ails to arrive at or clear the paper path sensors in the allowed time . Dedicated paper sensors (PS2, PS7, PS3101, PS3103, and PS3104) detect whether paper is present in the sensor and if the paper is fed normally (see th[...]

  • Página 46

    44 Chapter 1 Troubleshooting control panel messages EN P aper jam sensors 1 Registration paper sensor (PS2) 2 Duplex paper-pic k sensor (PS3104) 3 Rev ersed unit paper sensor (PS3103) 4 Rev ersed paper sensor (PS3101) 5 Delivery paper sensor (PS7) www.GovTechMedia.com[...]

  • Página 47

    EN Troubleshooting paper path problems 45 1 P aper jam locations Use the figure below to troub leshoot paper jams in the printer . For instructions on clearing paper jams, see the sections later in this chapter . Paper jam locations (sho wn with the optional 500-sheet paper feeder and duplex unit installed) See the next page f or the associated err[...]

  • Página 48

    46 Chapter 1 Troubleshooting control panel messages EN T able 1-1 4500 Jam locations and associated err or messages 1 13.11 P aper in the paper path is too long. Check the T ra y 1 area. Check the entire paper path. 8 13.3 Jam in duple x reverse unit. Inspect the rear of the duplex unit and the duplex tr ay . 2 13.10 P aper in the paper path is too[...]

  • Página 49

    EN Troubleshooting paper path problems 47 1 T able 1-2 4550 Jam locations and associated err or messages 1 13.25 P aper in the paper path is too long. Check the T ra y 1 area. Check the entire paper path. 8 13.10 Jam in duple x re verse unit. Inspect the rear of the duplex unit and the duplex tr ay . 2 13.24 P aper in the paper path is too shor t. [...]

  • Página 50

    48 Chapter 1 Troubleshooting control panel messages EN General paper path chec klist • V erify that media is correctly loaded in the input trays and that all length and width guides are set correctly . • Clean the printer . T oner and paper dust in the paper path inhibits free mov ement of media through the pr inter and bloc ks the sensors. •[...]

  • Página 51

    EN Troubleshooting paper path problems 49 1 Print media chec klist Many print problems are caused b y printing on media that does not meet specifications. See “ Supported media weights and sizes ” on page 90 and the HP LaserJet Pr inter F amily Pr int Media Guide fo r detailed info rmation about media specifications. In addition, the fo llowing[...]

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    50 Chapter 1 Troubleshooting control panel messages EN www.GovTechMedia.com[...]

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    EN Overview 51 2 Ser vice tools Overview This chapter provides inf ormation on ser vice tools that ser vice personnel can use to verify and manipulate internal pr inter settings and diagnostics. Note Only authorized service personnel should use the ser vice mode. www.GovTechMedia.com[...]

  • Página 54

    52 Chapter 2 Service tools EN Cold Reset Cold reset clears all data from the print buff er and returns the pr inting menu and the configuration menu to the f actor y default settings . T o perf orm a cold reset Select RESTORE FACTORY DEFAULTS from the Reset menu f or the HP LaserJet 4500 series Select RESTORE FACTORY SETTINGS from the Reset menu f [...]

  • Página 55

    EN Service mode 53 2 Service mode menu map Service menu Serial number= T ransfer maint count= Fuser maint count= Color page count= To t a l p a g e count= Cold reset paper= Clear ev ent log Cyan registration= Magenta registration= Y ellow registration= To p m a r g i n = Tr a y 1 left margin= Tr a y s 2 a n d 3 left margin=* Print registr ’ tn pa[...]

  • Página 56

    54 Chapter 2 Service tools EN Service menu items The Service menu provides the options listed below . Press the I TEM ke y to scroll through the Service menu. • Serial number • T ransf er maintenance count • Fuser maintenance count • Color page count • T otal page count • Registration page (see page 55) • Diagnostics mode (see page 59[...]

  • Página 57

    EN Service mode 55 2 Registration page Note Y ou m ust set the registration v alues if both the f ormatter and DC controller are replaced at the same time or if the fo rmatter was previously installed in another printer . If the DC controller is replaced by itself , these values are copied from the f ormatter to the DC controller . If a new f or ma[...]

  • Página 58

    56 Chapter 2 Service tools EN Registration page www.GovTechMedia.com[...]

  • Página 59

    EN Service mode 57 2 Setting registration number s On each of the color bars in the process section are bolded numbers that indicate the current number set on the control panel. These bolded numbers will alwa ys be in the middle of the bars. T o set the correct value f or each of the colors, look at the lines within the bar and find the grouping th[...]

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    58 Chapter 2 Service tools EN The left-side margin setting is tra y dependent. T ra y 1 has its own number while T ra ys 2 and 3 are combined. The procedure is the same as the top margin with one exception. The page m ust be printed from the tra y that will be adjusted. Printing from T ray 1: 1 Press the I TEM ke y until PRINT REGISTRATION PAGE TRA[...]

  • Página 61

    EN Diagnostics mode 59 2 Diagnostics mode This section provides an o verview of the diagnostic tools incorporated into the HP Color LaserJet 4500 series and 4550 series pr inters. CA UTION Use caution when performing printer diagnostics to av oid risk of injur y . Only trained service personnel should access the diagnostic mode with the skins remov[...]

  • Página 62

    60 Chapter 2 Service tools EN Formatter diagnostics Formatter diagnostics are designed to be used by qualified service personnel. This set of tests are designed to thoroughly test the functionality of the formatter . If all the tests pass, the formatter is working correctly and it is likely that the prob lem resides elsewhere . Listed below are des[...]

  • Página 63

    EN Diagnostics mode 61 2 Formatter diagnostics T est Description REPEA T If set to yes , the tests will run continuously until interrupted. In the 4550 series only , [C ANCEL J OB ] will abor t the test. ON F A UL T The fo llowing will occur f or each setting: BREAK – The test will stop when a f ailure occurs. P A USE – Stops the test for a sho[...]

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    62 Chapter 2 Service tools EN Engine diagnostics A good understanding of how the printer operates is required to use the engine diagnostics successfully . T o hav e a better view of the areas being ex ercised, remove the left-side cov er and the ITB dra wer . Defeat the two ITB dr awer s witches located on the left side of the dra wer cavity . List[...]

  • Página 65

    EN Diagnostics mode 63 2 P aper path test Note If an error occurs during the paper path test, the message PATH_1PAPER PATH TEST FAILED displays . 1 Press the I TEM ke y until y ou see ENGINE DIAGS PAPER PATH TEST . 2 Press the S ELECT ke y to activate the test. While the test is running ENGINE DIAGS E1:PAPERPATH displays in the f ront panel. The te[...]

  • Página 66

    64 Chapter 2 Service tools EN Developer test The dev eloper test rotates the carousel stopping at each toner cartr idge and rotating the dev e loper slee v e. F or the best view of the carousel and the toner car tridge sleev es, remov e the dr um car tridge. The drum draw er must be closed bef ore the test can run. 1 Press the I TEM ke y until ENGI[...]

  • Página 67

    EN Diagnostics mode 65 2 P ath sensors The path sensors test allows the paper path sensors and s witches to be tested fo r correct operation. The table belo w shows the correlation between the identifier on the front panel and the sensor or s witch it represents. 1 Press the I TEM ke y until ENGINE DIAGS PATH SENSORS is display ed on the front pane[...]

  • Página 68

    66 Chapter 2 Service tools EN When running this test, make sure the ITB dra wer is installed with T ra y 2 and T ra y 3 (if installed) remov ed. In this state, the def ault value on the front panel should be: 0X111111110010, where the x can be either 0 or 1 . If there is any other v alue, then there is a possib le problem. Identify the sensor or s [...]

  • Página 69

    EN Diagnostics mode 67 2 Door sensor test The door sensor test allows service personnel to open and close doors on the printer while watching the sensor status on the front panel. Switches 4 and 5 are in series with each other , which causes the value to toggle under identifier A. Once the door sensor test is initiated, the front panel displa ys th[...]

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    68 Chapter 2 Service tools EN Engine test The printer has one test patter n (vertical lines). When an image defect appears, a test print can be made to identify the problem. The test print can be made by pressing the test print s witch located on the right side of the printer (see figure below). A test pattern can be pr inted by pressing the test p[...]

  • Página 71

    EN NVRAM initialization 69 2 NVRAM initialization NVRAM initialization should alwa ys be executed immediately after replacing the firmware or the formatter board. This procedure aligns the firmware with the formatter . Not performing NVRAM initialization could result in deterioration of print quality . Bef ore initializing NVRAM, be sure to gather [...]

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    70 Chapter 2 Service tools EN • Printer serial number www.GovTechMedia.com[...]

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    EN Overview 71 3 P ow er supply Overview Three power supplies are used to po w er v arious sections of the printer: AC , DC, and a high-v oltage power supply . This chapter details the distribution of these pow er supplies. www.GovTechMedia.com[...]

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    72 Chapter 3 Power supply EN A C/DC power suppl y The low-v oltage pow er supply circuit supplies +24 Vdc and +5 Vdc, which is required fo r the printer , and 3.3 and 5 Vdc, which is required f or the video controller . +24 Vdc • The paper pickup motor , scanner motor , and high-voltage pow er supply PCB use +24 Vdc. • The front door s witch or[...]

  • Página 75

    EN Overcurrent/overvoltage protection 73 3 Over current/o vervolta g e protection Each DC power supply circuit has an o vercurrent protectiv e function and ov ervoltage protective function. This pre vents a power supply circuit fa ilure by automatically interrupting the output voltage when anomalies such as a shor t dev elop on the loads that resul[...]

  • Página 76

    74 Chapter 3 Power supply EN High-v oltage power suppl y The printer contains two high-voltage PCBs mounted in one assemb ly . T ogether these PCBs generate the v oltage supplied to the follo wing: • primar y charging roller • dev eloping sleev e • primar y transfer roller • secondary transfer roller • ITB cleaning roller • upper fusing[...]

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    EN Overview 75 4 Input/Output (I/O) Overview This chapter provides inf ormation on cabling and the printer interface . www.GovTechMedia.com[...]

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    76 Chapter 4 Input/Output (I/O) EN Enhanced I/O (EIO) configuration Both 4500 series and 4550 series pr inters come equipped with two enhanced input/output (EIO) slots. These slots hold compatib le external devices such as the HP JetDirect 600N Print Server . Plugging EIO cards into the slots increases the number of network interfaces av ailable to[...]

  • Página 79

    EN HP JetDirect print servers 77 4 HP JetDirect print servers HP JetDirect print ser vers (network cards) can be installed in one of the printer EIO slots. These cards suppor t multiple network protocols and operating systems. HP JetDirect print servers facilitate netw ork management by allo wing you to connect a printer directly to your network at[...]

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    78 Chapter 4 Input/Output (I/O) EN LocalT alk I/O The LocalT alk interface enab les you to print directly from a standalone Apple Macintosh computer or from a Macintosh computer on a LocalT alk network. For specific inf or mation on configuring your computer and printer to print through a LocalT alk interface, ref er to the printer ’ s getting st[...]

  • Página 81

    EN Fast InfraRed Receiver (optional) 79 4 • Microsoft Windows 9x, Windo ws NT 4.0, Windows 2000 or Mac 8.5 with a LaserWriter 8.6 or higher dr iver . Note Older non-IrD A-compliant por table computers might not be compatible with the HP F ast InfraRed Receiv er . If you experience problems when attempting to print with the HP F ast InfraRed Recei[...]

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    80 Chapter 4 Input/Output (I/O) EN Bidirectional parallel interface When used to describe a parallel interface , the term bidirectional indicates that the printer is able to both receiv e data from the computer and send data to the computer through the parallel por t. An IEEE-1284 compliant parallel cabl e with the correct pin configuration (see th[...]

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    EN Bidirectional parallel interface 81 4 P arallel cable pin configuration Use the follo wing tab le to verify the correct pin configuration. Signal name Printer pin # Computer port # nSTROBE 15 1 DA T A 0 62 DA T A 1 7 3 DA T A 2 8 4 DA T A 3 9 5 DA T A 4 1 0 6 DA T A 5 11 7 DA T A 6 1 2 8 DA T A 7 13 9 nACK NLG 3 10 BUSY 1 11 CALL (PE) 5 12 SELEC[...]

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    82 Chapter 4 Input/Output (I/O) EN IEEE-1284 compliant parallel cables HP helped dev elop the IEEE-1284 standard and is one of the first companies to introduce products that are compliant with it. HP offers the follo wing IEEE-1284 compliant parallel cab les. Each is described below . Maxim u m I/O cable lengths Part number Length Connector type C2[...]

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    EN Configuring the computer interface 83 4 Configuring the computer interface Y ou can verify that the printer is configured proper ly by printing out a printer configuration page. Note If the printer is configured with EIO cards (for e x ample, an HP JetDirect print ser ver), an additional configuration page will print that provides interf ace con[...]

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    84 Chapter 4 Input/Output (I/O) EN 1 Printer information — Lists the printer serial number , PCL/Emulated P ostScr ipt firm ware re vision, total number of pages printed dur ing the life of the printer , and total number of color pages printed dur ing the life of the printer . 2 Event log — Lists the last five printer e vents , including printe[...]

  • Página 87

    EN Configuring the computer interface 85 4 13 Printer usage information — (4500 series only; 4550 series usage information is on the Usage P age) Shows the n umber of pages printed for the f ollowing items: Row 1: P a per siz e 000000 000000 000000 000000 000000 Custom Env elope Legal E xecutiv e/B5 Letter/A4 Row 2: Fuse modes 000000 000000 00000[...]

  • Página 88

    86 Chapter 4 Input/Output (I/O) EN 14 Calibration density settings — On the bottom row of te xt, there are four separ ate bloc ks of numbers. The first bloc k is f or cyan, second for magenta, third f or yellow , and the last is f or blac k. Make sure the numbers are not near zero (if so , no calibration was done). Note For ro ws one to three, th[...]

  • Página 89

    EN Configuring the computer interface 87 4 Note For ro ws one to three , the page count is incremented after e v ery ten pages. Row f our is incremented after ev ery end of page. Rows one to four are counted through the engine . Rows five and six are driver requests. The tra y count is incremented based on the tra y that is selected by the firmware[...]

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    88 Chapter 4 Input/Output (I/O) EN www.GovTechMedia.com[...]

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    EN Overview 89 Overview Use media that meet the specifications listed on the following pages. By doing so, you will minimize the incidents of p aper jams, prevent premature wear to the printer , and reduce repair costs. Hewlett-Packard recommends testing print media before buying it in large quantities. Note For complete paper specifications for al[...]

  • Página 92

    90 Chapter 5 Media specifications EN Supported media weight s and sizes The table below shows the media types and sizes supported by the printer and the printer accessories. For optimum results, use conventional 75 g/m 2 (20 lb) xerographic paper . Supported media specifications T ray Supported media Media specifications Capacity Tr a y 1 Paper A4/[...]

  • Página 93

    EN Supported media weights and sizes 91 5 *T rays 2 and 3 do not support the range of custom sizes available in T ray 1. **T rays 2 and 3 use “custom” size—specifically for B5 ISO. Note Use only HP-supported transparencies (HP part number C2934A, letter size; C2936A, A4 size). T ray 2* Paper A4/Letter Legal Executive JIS B5 A5 Custom (B5 ISO)[...]

  • Página 94

    92 Chapter 5 Media specifications EN Media requirement s Selecting print media Y ou can use many types of paper and other print media with the HP Color LaserJet printers. This section provides guidelines and specifications for selecting and using different print media. For optimum results, use conventional 75 g/m 2 (20 lb) xerographic paper . V eri[...]

  • Página 95

    EN Media requirements 93 5 Non-supported media Use the following guidelines to avoid poor print quality or damage to your printer: • Do not use paper that is too rough. • Do not use paper that is embossed or coated unless it is specifically recommended for use in the HP Color LaserJet printers. • Do not use paper with cutout s or perforations[...]

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    94 Chapter 5 Media specifications EN T ransp arencies Note Hewlett-Packard recommends using HP Color LaserJet T ransparencies with this printer . HP products are designed to work together for optimum printing results. When printing on transparencies, use these tips to prevent printer malfunctions caused by transparencies: • Use letter-size and A-[...]

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    EN Media requirements 95 5 Glossy p aper For optimum results when printing on glossy paper , select the glossy print setting in the printer driver . Y ou can also use the printer control panel to set the media type to GLOSS for the input tray you are using. Because this setting affects all print jobs, it is import ant to return the printer to its o[...]

  • Página 98

    96 Chapter 5 Media specifications EN Envelopes Envelopes can only be printed from T ray 1. For information on loading envelopes, see the section in the online user guide on loading envelopes into T ray 1. Adhering to the following guidelines will help ensure proper printing of envelopes and help prevent printer jams: • Do not load more than 10 en[...]

  • Página 99

    EN Media requirements 97 5 Labels Note T o print labels, Hewlett-Packard recommends configuring Tray 1 as a cassette and setting the tray’s media type to LABELS in the printer control panel. When printing labels, use the following guidelines: • V erify that the label’s adhesive material can tolerate temperatures of 190° C (374° F) for 0.1 s[...]

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    98 Chapter 5 Media specifications EN Recycled p aper This printer supports the use of recycled paper . Recycled paper must meet the same specifications as standard paper (refer to the HP LaserJet Family Print Media Guide ). The guide is available through HP Direct. See Appendix D in the online user guide for ordering information. Hewlett-Packard re[...]

  • Página 101

    EN General tips 99 5 General tip s Paper curl Paper curl results from both the heating process used to bond the print image (toner) to the paper and from the p ath that the paper must negotiate through the printer . T ake the following actions to help reduce paper curl: 1 T urn the paper over in the input tray . Some paper packages (reams) have an [...]

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    100 Chapter 5 Media specifications EN www.GovTechMedia.com[...]

  • Página 103

    EN Overview 101 Overview This chapter provides information on toner cartridges and their use. Hewlett-Packard recommends using HP toner cartridges, which are designed specifically to enhance the output from the HP LaserJet family of printers. www.GovTechMedia.com[...]

  • Página 104

    102 Chapter 6 Toner cartridge information EN Approximate replacement intervals for consumable items Y ou can identify consumable items by their labeling and their blue plastic handles. For instructions on installing consumables, see the installation guides supplied with each consumable item. The following table lists the replacement intervals for p[...]

  • Página 105

    EN Approximate replacement intervals for consumable items 103 6 1 The approximate average A4/letter-size page count is based on 5 percent coverage of individual toner colors. Page counts are only estimations; usage conditions and print patterns can cause results to vary. 2 Approximate lives are based on 2,000 pages per month. CAUTION Hewlett-Packar[...]

  • Página 106

    104 Chapter 6 Toner cartridge information EN Potential toner cartridge issues Banding When printing with a laser printer , the toner is applied across the page in horizontal strips. The p age is moved through the printer and toner is continually applied. When printing text- or black-image pages, a large amount of toner is deposited on the page. As [...]

  • Página 107

    EN Potential toner cartridge issues 105 6 T oner cracking When the paper is folded and the crease aligns with a line of text, it is possible with certain types of paper for the text to break along the line, giving the appearance of a white line through the text. Papers that do not meet the smoothness (100-250 Sheffield, 100-500 Bendt sen) or wax pi[...]

  • Página 108

    106 Chapter 6 Toner cartridge information EN T ransfer of toner image (post-image transfer) After printing a document on a HP LaserJet printer , folding it, and sending it through the mail, you might observe that a portion of the print image was transferred to opposing surfaces of the folded document. The laser printing process uses a pigmented pla[...]

  • Página 109

    EN Potential toner cartridge issues 107 6 HP LaserJet printers have been designed for optimum results with xerographic (laser) bond papers such as HP Multipurpose paper . The properties of this type of paper (for example, surface roughness, composition, and moisture content) are such that the other causes of potential toner transfer are minimized. [...]

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    108 Chapter 6 Toner cartridge information EN HP Planet Partners The U. S., Canada, Europe, and Australia now have HP toner cartridge recycling programs. The used toner cartridge should be placed in the wrapper and box that held the new cartridge and sent back for recycling. HP Planet Partners U.S. A brochure explaining the recycling program in the [...]

  • Página 111

    EN HP Planet Partners 109 6 Note Recycling information is included in the toner cartridge package. For additional information about HP corporate-wide, environmental policies, practices, and awards, visit www .hp.com . CANADA Canada uses Federal Express for their recycling program. At least eight but no more than 40 T oner Cartridges can be shipped [...]

  • Página 112

    11 0 Chapter 6 Toner cartridge information EN T oner cartridge refill statement Hewlett-Packard toner cartridges have been designed to maximize the reliability of the HP LaserJet printer by including all of the components that need frequent replacement or adjustment within the cartridge. While we recognize that all parts of this critical printer me[...]

  • Página 113

    EN Toner cartridge refill statement 111 6 The entire family of HP LaserJet printers is covered under a standard one-year warranty from the date of purchase. Hewlett-Packard offers optional maintenance contracts after the one-year warranty expires. The use of refilled toner cartridges alone does not affect either the warranty or any maintenance cont[...]

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    11 2 Chapter 6 Toner cartridge information EN www.GovTechMedia.com[...]

  • Página 115

    EN Overview 11 3 Overview The following tables list the products, product numbers, product descriptions, and service part numbers for each printer . Parts can be ordered through HP Parts Direct Ordering at (800) 227-8164 (U.S. only). For additional product support, see the inside back cover of this guide. www.GovTechMedia.com[...]

  • Página 116

    11 4 Chapter 7 Printer options and consumables EN Identifying consumables The following illustrations show the location of the consumables. Consumable locations * * See “Approximate replacement intervals for consumable items” on page 102. 1 T oner cartridges 4 T ransfer roller 2 Imaging drum cartridge 5 Air filters 3 Intermediate transfer belt [...]

  • Página 117

    EN Printer options and replaceable parts 11 5 7 Printer options and replaceable p arts Printer options and replaceable p arts Product Product number Product description 4500 part number 4550 part number Memory 100-pin C4140A 4 MB SDRAM DIMM C4140-67901 C4141A 8 MB SDRAM DIMM C4141-67901 C4142A 16 MB SDRAM DIMM C4142-67901 C4143A 32 MB SDRAM DIMM C4[...]

  • Página 118

    11 6 Chapter 7 Printer options and consumables EN Network connectivity J31 10A HP JetDirect 600N for ethernet (10Base-T [RJ-45]) J31 10-69001 J31 10-69001 J31 1 1A HP JetDirect 600N for ethernet (10Base-T [RJ-45] and 10Base-2 [BNC]) and LocalT alk (DIN-8) J31 1 1-69001 J31 1 1-69001 J31 12A HP JetDirect 600N for T oken Ring (DB9, RJ- 45) J31 12-690[...]

  • Página 119

    EN Printer options and replaceable parts 11 7 7 Options C4082A 500-sheet input tray C4082-67901 C4082-67901 C4083A Duplex unit (two- sided printing) C4083-67901 C4083-67901 C4235A HP Color LaserJet 4500/4550 cabinet N/A N/A J6054A 5 GB Hard Disk (4550 series only) N/A N/A J4103A Fast Infrared Pod (4550 series only) N/A N/A C4286A Flash DIMM (4550 s[...]

  • Página 120

    11 8 Chapter 7 Printer options and consumables EN Consumables C4195A Drum kit R94-4001- 410CN R94-4001- 410CN C4196A T ransfer kit R96-5009- 000CN R96-5009- 000CN C4197A Fuser kit (1 10V) R96-5007- 000CN R96-5007- 000CN C4198A Fuser kit (220V) R96-5008- 000CN R96-5008- 000CN Panel overlays N/A English C4084-40001 C4084-40001 N/A German C4084-40005 [...]

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    EN Overview 11 9 Overview This chapter provides the part numbers and descriptions of the most commonly used assemblies and subassemblies in the HP LaserJet color printers. The shaded numbers in the tables refer to the location of the part in the printer , as shown in the corresponding illustrations. www.GovTechMedia.com[...]

  • Página 122

    120 Chapter 8 Printer parts EN Common fasteners Illustration Description Size Uses Screw , machine w/washer M3X6 M3X10 M3X12 M3X14 T o hold plastic to metal example: the skins Screw , self- tapping M4X8 M4X10 T o hold plastic to plastic example: control panel Screw , trus head M3X4 M3X6 M3X8 Sheet metal to sheet metal example: formatter pan Retaini[...]

  • Página 123

    EN Parts lists and illustrations 121 8 Part s lists and illustrations The following illustrations and their respective parts t ables list the field replaceable units (FRU) for this printer . Each table includes the name of the part (description), part number , quantity , and reference number pointing to the part and location in the illustration. Se[...]

  • Página 124

    122 Chapter 8 Printer parts EN Part s for the HP LaserJet 4500 series External covers, panels, etc. 1 2 3 4 5 6 7 8 9 10 12 11 www.GovTechMedia.com[...]

  • Página 125

    EN Parts lists and illustrations 123 8 Note Early CLJ4500 printers (serial numbers xxGxxxxxxx and below) have two versions of the drum drawer cover and the upper (drum) drawer Ref Description Qty Parts for 4500 s/n xxG and below Parts for 4500 s/n xxH and above Parts for 4550 1 Cover , right side 1 RB2-1203- 000CN RB2-1203- 000CN RB2-1203- 000CN 2 [...]

  • Página 126

    124 Chapter 8 Printer parts EN assembly . If the drum drawer cover requires replacement, first determine whether you have the original version of the drum drawer by locating a bar code label with a part number of RG5-3315 on the inside of the drum drawer cover , just to the right of the fan cover . If you have the original version of the drum drawe[...]

  • Página 127

    EN Parts lists and illustrations 125 8 T op cover assembly Ref Description Qty Parts for 4500 s/n xxG and below Parts for 4500 s/n xxH and above Parts for 4550 1 Cover , top 1 RG5-3300- 000CN RG5-5150- 000CN RG5-5150- 000CN 2 Cover , toner access 1 RF5-2076- 000CN RF5-3137- 000CN RF5-3137- 000CN 1 2 www.GovTechMedia.com[...]

  • Página 128

    126 Chapter 8 Printer parts EN CAUTION T wo versions of the HP Color LaserJet 4500 series printers are available. Before ordering parts, you will need to identify which printer version you are servicing. For more information, see page 121. 4 2 1 3 9 6 5 7 8 10 11 12 13 15 16 14 17 18 www.GovTechMedia.com[...]

  • Página 129

    EN Parts lists and illustrations 127 8 Internal components (1 of 3) Internal components (1 of 3) Ref Description Qty Parts for 4500 s/n xxG and below Parts for 4500 s/n xxH and above Parts for 4550 1 Cable, fan 1 RG5-3887- 000CN N/A N/A 2 Cable, developer 1 RG5-3783- 000CN RG5-5187- 000CN RG5-5187- 000CN 3 Power supply , 1 10V 1 RH3-2189- 000CN RH3[...]

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    128 Chapter 8 Printer parts EN 11 Fu ser, 22 0V 1 RG5-3251- 000CN C4084- 69003* RG5-3251- 000CN C4084- 69003* RG5-5155- 050CN C4084- 69003* 12 Kit, Fuser Deflector 1 C4084-67906 C4084-67906 C4084-67906 13 Drum bushing assembly 1 RG5-5169- 000CN RG5-5169- 000CN RG5-5169- 000CN 14 Rod, delivery 1 RB2-1284- 000CN RB2-1284- 000CN RB2-1284- 000CN 15 Spr[...]

  • Página 131

    EN Parts lists and illustrations 129 8 Internal components (2 of 3 1 3 4 2 7 5 6 www.GovTechMedia.com[...]

  • Página 132

    130 Chapter 8 Printer parts EN CAUTION T wo versions of the HP Color LaserJet 4500 series printers are available. The 4550 series printer is similar to the newer version of the 4500 printer , but does contain some new service parts. Before ordering part s, you will need to identify which printer version you are servicing. For more information, see [...]

  • Página 133

    EN Parts lists and illustrations 131 8 Internal components (3 of 3) 1 2 12 13 11 10 9 4 5 6 8 14 3 -A 14 -B 7 (SW3) www.GovTechMedia.com[...]

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    132 Chapter 8 Printer parts EN Internal components (3 of 3) Ref Description Qty Parts for 4500 s/n xxG and below Parts for 4500 s/n xxH and above Parts for 4550 1 Guide, drum drawer cable 1 RB2-1457- 000CN (included in 14B) (included in 14B) 2 Sensor , waste toner (PS13) 1 RG5-3292- 000CN RG5-3292- 000CN RG5-3292- 000CN 3 DC controller PCB 1 RG5-38[...]

  • Página 135

    EN Parts lists and illustrations 133 8 CAUTION T wo versions of the HP Color LaserJet 4500 series printers are available. The 4550 series printer is similar to the newer version of the 4500 printer , but does contain some new service parts. Before ordering part s, you will need to identify which printer version you are servicing. For more informati[...]

  • Página 136

    134 Chapter 8 Printer parts EN Developing carousel assembly Ref Description Qty Parts for 4500 s/n xxG and below Parts for 4500 s/n xxH and above Parts for 4550 1 Fan, large 1 RH7-1346- 000CN RH7-1435- 000CN RH7-1435- 000CN 2 Spacer 1 RS5-6210- 000CN RS5-6210- 000CN RS5-6210- 000CN 3 Bearing, carousel 1 XG9-0361- 000CN XG9-0361- 000CN XG9-0361- 000[...]

  • Página 137

    EN Parts lists and illustrations 135 8 CAUTION T wo versions of the HP Color LaserJet 4500 series printers are available. The 4550 series printer is similar to the newer version of the 4500 printer , but does contain some new service parts. Before ordering part s, you will need to identify which printer version you are servicing. For more informati[...]

  • Página 138

    136 Chapter 8 Printer parts EN PCB assemblies PCB assemblies Ref Description Qty Parts for 4500 s/n xxG and below Parts for 4500 s/n xxH and above Parts for 4550 1 Developing PCB 1 RG5-381 1- 000CN RG5-5180- 000CN RG5-5180- 000CN 2 DC controller PCB 1 RG5-3809- 000CN RG5-5254- 000CN RG5-5254- 000CN 3 Interconnect PCB 1 RG5-3808- 000CN RG5-3808- 000[...]

  • Página 139

    EN Parts lists and illustrations 137 8 *These parts require exchange CAUTION T wo versions of the HP Color LaserJet 4500 series printers are available. The 4550 series printer is similar to the newer version of the 4500 printer , but does contain some new service parts. Before ordering part s, you will need to identify which printer version you are[...]

  • Página 140

    138 Chapter 8 Printer parts EN Paper pick-up assembly (1 of 3) 2 1 5 4 3 www.GovTechMedia.com[...]

  • Página 141

    EN Parts lists and illustrations 139 8 CAUTION T wo versions of the HP Color LaserJet 4500 series printers are available. The 4550 series printer is similar to the newer version of the 4500 printer , but does contain some new service parts. Before ordering part s, you will need to identify which printer version you are servicing. For more informati[...]

  • Página 142

    140 Chapter 8 Printer parts EN Paper pick-up assembly (2 of 3) 2 3 6 9 10 13 19 16 15 17 20 21 22 25 27 28 7 8 11 12 14 18 23 24 26 29 30 31 1 4 5 32 33 34 35 www.GovTechMedia.com[...]

  • Página 143

    EN Parts lists and illustrations 141 8 CAUTION T wo versions of the HP Color LaserJet 4500 series printers are available. The 4550 series printer is similar to the newer version of the 4500 printer , but does contain some new service parts. Before ordering part s, you will need to identify which printer version you are servicing. For more informati[...]

  • Página 144

    142 Chapter 8 Printer parts EN 12 Bushing 2 RS5-1293- 000CN RS5-1293- 000CN RS5-1293- 000CN 13 Gear , 31 T 1 RS6-0136- 000CN RS6-0136- 000CN RS6-0136- 000CN 14 Motor (M2), stepping 1 RH7-1343- 000CN RH7-1343- 000CN RH7-1343- 000CN 15 Gear , 47T 1 RS6-0147- 000CN RS6-0147- 000CN RS6-0147- 000CN 16 Gear , 24T/37T 1 RS6-0163- 000CN RS6-0163- 000CN RS6[...]

  • Página 145

    EN Parts lists and illustrations 143 8 25 Gear , 26T 1 RS6-0149- 000CN RS6-0149- 000CN RS6-0149- 000CN 26 Gear , 37T 1 RS6-0143- 000CN RS6-0143- 000CN RS6-0143- 000CN 27 Sensor , paper size 1 RG5-3234- 000CN RG5-3234- 000CN RG5-3234- 000CN 28 Cable, paper feed 1 RG5-3785- 000CN RG5-3785- 000CN RG5-3785- 000CN 29 Gear , 29T 1 RS6-0150- 000CN RS6-015[...]

  • Página 146

    144 Chapter 8 Printer parts EN Paper pick-up assembly (3 of 3) 1 2 3 5 7 20 22 23 25 24 26 27 6 4 8 9 10 11 12 13 14 15 16 17 18 19 21 28 33 32 29 30 30 31 www.GovTechMedia.com[...]

  • Página 147

    EN Parts lists and illustrations 145 8 Paper pick-up assembly (3 of 3) Ref Description Qty Parts for 4500 s/n xxG and below Parts for 4500 s/n xxH and above Parts for 4550 1 Cable, fusing/ option 1 RG5-3787- 000CN RG5-3787- 000CN RG5-3787- 000CN 2 Lever , sensor 1 RB2-0576- 000CN RB2-0576- 000CN RB2-0576- 000CN 3 Clutch, one- way 1 RB2-0572- 000CN [...]

  • Página 148

    146 Chapter 8 Printer parts EN 14 Clutch (CL4), electromagneti c 1 RH7-5180- 000CN RH7-5180- 000CN RH7-5180- 000CN 15 Gear , 16T 1 RS6-0151- 000CN RS6-0151- 000CN RS6-0151- 000CN 16 Clutch (CL3), electromagneti c 1 RH7-5178- 000CN RH7-5178- 000CN RH7-5178- 000CN 17 Gear , 29T 1 RS6-0152- 000CN RS6-0152- 000CN RS6-0152- 000CN 18 Paper feed PCB assem[...]

  • Página 149

    EN Parts lists and illustrations 147 8 CAUTION T wo versions of the HP Color LaserJet 4500 series printers are available. The 4550 series printer is similar to the newer version of the 4500 printer , but does contain some new service parts. Before ordering part s, you will need to identify which printer version you are servicing. For more informati[...]

  • Página 150

    148 Chapter 8 Printer parts EN Alphabetical p arts list CAUTION T wo versions of the HP Color LaserJet 4500 series printers are available. The 4550 series printer is similar to the newer version of the 4500 printer , but does contain some new service parts. Before ordering part s, you will need to identify which printer version you are servicing. F[...]

  • Página 151

    EN Alphabetical parts list 149 8 Description Parts for 4500 series xx G ... and below Parts for 4500 series xx H... and above Parts for HP Color LaserJet 4550 printer Cable, ITB RG5-3786- 000CN RG5-3786- 000CN RG5-3786- 000CN Cable, ITB switch RG5-4651- 000CN RG5-4651- 000CN RG5-4651- 000CN Cable, laser RG5-3782- 000CN RG5-3782- 000CN RG5-3782- 000[...]

  • Página 152

    150 Chapter 8 Printer parts EN Description Parts for 4500 series xx G ... and below Parts for 4500 series xx H... and above Parts for HP Color LaserJet 4550 printer Continuous toner level sensor PCB N/A N/A RG5-5247- 000CN Control panel assembly RG5-3345- 000CN RG5-3345- 000CN RG5-3345- 000CN Cover , cable RB2-1 180-000CN RB2-1 180-000CN RB2-1 180-[...]

  • Página 153

    EN Alphabetical parts list 151 8 Description Parts for 4500 series xx G ... and below Parts for 4500 series xx H... and above Parts for HP Color LaserJet 4550 printer Drum bushing assembly RG5-3319- 000CN RG5-3319- 000CN RG5-3319- 000CN Drum drawer assembly RG5-5230- 000CN RG5-5142- 000CN RG5-5142- 000CN Drum drawer assembly RG5-5230- 000CN RG5-514[...]

  • Página 154

    152 Chapter 8 Printer parts EN Description Parts for 4500 series xx G ... and below Parts for 4500 series xx H... and above Parts for HP Color LaserJet 4550 printer Gear , 18T/14T RS6-0157-000CN RS6-0157-000CN RS6-0157-000CN Gear , 18T/52T RF5-2161-000CN RF5-2161-000CN RF5-2161-000CN Gear , 19T RS6-0141-000CN RS6-0141-000CN RS6-0141-000CN Gear , 20[...]

  • Página 155

    EN Alphabetical parts list 153 8 Description Parts for 4500 series xx G ... and below Parts for 4500 series xx H... and above Parts for HP Color LaserJet 4550 printer ICL cam assembly RG5-3242- 000CN RG5-3242- 000CN RG5-3242- 000CN Indicator , paper level RB1-9009-000CN RB1-9009-000CN RB1-9009-000CN Interconnect PCB RG5-3808- 000CN RG5-3808- 000CN [...]

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    154 Chapter 8 Printer parts EN Description Parts for 4500 series xx G ... and below Parts for 4500 series xx H... and above Parts for HP Color LaserJet 4550 printer Paper size sensor PCB RG5-3816- 000CN RG5-3816- 000CN RG5-3816- 000CN Plate, left RF5-2094-000CN RF5-2094-000CN RF5-2094-000CN Plate, right RF5-2095-000CN RF5-2095-000CN RF5-2095-000CN [...]

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    EN Alphabetical parts list 155 8 *These parts require exchange Description Parts for 4500 series xx G ... and below Parts for 4500 series xx H... and above Parts for HP Color LaserJet 4550 printer Sensor (PS14), density RG5-3281- 000CN RG5-5149- 000CN RG5-5149- 000CN Sensor , paper size RG5-3234- 000CN RG5-3234- 000CN RG5-3234- 000CN Shaft, paper p[...]

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    156 Chapter 8 Printer parts EN www.GovTechMedia.com[...]

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    EN Overview 157 Overview This chapter includes information on the following topics: • The printer cleaning page • Image formation troubleshooting • Examples of image defects and recommended corrective actions • Overhead transparency defect troubleshooting • Repetitive defect troubleshooting www.GovTechMedia.com[...]

  • Página 160

    158 Chapter 9 Image quality EN Image formation troubleshooting Before beginning image formation troubleshooting, check that the media meets the specifications listed in the HP LaserJet Printer Family Print Media Guide. Print density test and color checks Use the configuration page to check the print density of the black, primary , and process color[...]

  • Página 161

    EN Image formation troubleshooting 159 9 Common causes of color variation The following list outlines the major causes of color variations between computers, applications, and output devices. • Halftone patterns produced on monitors and the types of patterns used in the print jobs are different and might cause variations in the printed output. ?[...]

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    160 Chapter 9 Image quality EN Color selection process The user selects the color in the application, but the operating system might convert or modify some characteristics of the color before sending the information to the printer driver . The printer driver might also modify color characteristics depending upon the selected output mode. Any color [...]

  • Página 163

    EN Image formation troubleshooting 161 9 HP ColorSmart II HP ColorSmart II is a set of technologies that enables optimal color output automatically for diverse types of documents. HP ColorSmart II utilizes object tagging and S tandard RGB (sRGB) color technologies. Object tagging allows optimal color and halftone settings to be used for different o[...]

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    162 Chapter 9 Image quality EN Matching colors The process of matching printer output color to your monitor is quite complex because printers and computer monitors use different methods of producing color . Monitors display colors by light pixels using an RGB (red, green, blue) color process, but printers print colors using a CMYK (cyan, magenta, y[...]

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    EN Image formation troubleshooting 163 9 For more information about using P ANTONE®* colors, see the Readme file for the P ANTONE® color-matching system included on the printing system CD-ROM. Note Color settings, halftone settings, and print media affect the appearance of P ANTONE®* colors. T o optimize P ANTONE®*- certified colors, use the de[...]

  • Página 166

    164 Chapter 9 Image quality EN Adjusting color balance This printer features automatic color calibration to provide high-quality color output. In situations that require critical color control, you can manually adjust the density balance of the printer ’s four toner colors. CAUTION This procedure should only be performed by your network administr[...]

  • Página 167

    EN Image formation troubleshooting 165 9 Color balance calibration page Step 2: Adjust the cyan (C) density setting Examine the cyan density bar (C) on the color balance calibration page from a distance of 2 meters (6 feet). If the center oval matches the background pattern more than the other ovals, the cyan density does not need to be adjusted an[...]

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    166 Chapter 9 Image quality EN 3 Press S ELECT to save the value. An asterisk ( * ) displays next to the selected setting. Step 3: Adjust the magent a (M ) density setting Examine the magenta density bar (M). If the center oval matches the background pattern more than the other ovals, the magenta density does not need to be adjusted and you should [...]

  • Página 169

    EN Image formation troubleshooting 167 9 2 Press the right side of the V ALUE key to increase the value, or press the left side to decrease it, until the number corresponding to the oval that most closely matches the background pattern is displayed. 3 Press S ELECT to save the value. An asterisk ( * ) displays next to the selected setting. Step 6: [...]

  • Página 170

    168 Chapter 9 Image quality EN Image Defect T able For more information, see the page numbers below each image. Image Defect T able Background scatter (see page 170) Banding and horizontal lines (see page 170) Black lines (see page 172) Black or partially black pages (see page 172) Blank page or white pages (see page 173) Blank spots (see page 174)[...]

  • Página 171

    EN Image Defect Table 169 9 Additional defect information is found in the following sections: • Overhead transparency defect s (see page 184) • Repetitive defects (see page 187) Irregular raised spots or stray toner (see page 178) Light print, dark print, faded print (see page 178) Light black or no black print (see page 179) Loose toner (see p[...]

  • Página 172

    170 Chapter 9 Image quality EN Image defect det ails • The media does not meet HP specifications. • The toner cartridge is defective. • The inside of the printer is dirty . • The transfer roller is dirty or worn. Generate a cleaning page. Banding occurs when solid fill areas show streaks or bands of shade variations. This can be caused by: [...]

  • Página 173

    EN Image defect details 171 9 • Observe the following from the test sample: – Check the spacing or “pitch” between the defects. – Check to see if the defect spans all color planes. – If the defect is in all color planes, does the defect produce a straight line through all color planes or does it move from one color plane to the next? ?[...]

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    172 Chapter 9 Image quality EN • The toner cartridge is defective. • The toner cartridge is not seated properly . • The fusing assembly is contaminated or damaged. • The static eliminator teeth are contaminated or defective • The imaging drum is damaged or the waste toner collection in the drum is full. Replace the imaging drum. • Check[...]

  • Página 175

    EN Image defect details 173 9 • Y our software application is sending an extra page-eject command. – Check the software’s printing configuration information. • There is a problem with the network configuration. Some sharing devices on networks may generate a blank page as a separator . – Check with the network administrator . • The prin[...]

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    174 Chapter 9 Image quality EN • The page length and margins are not set correctly for the paper size. V erify that the ribbon connector at J1307 of the HVPS is properly seated. • If the HVPS has been removed recently , verify that the ribbon connector from the DC controller PCA to the HVPS is properly seated at both ends. • V erify that the [...]

  • Página 177

    EN Image defect details 175 9 • Make sure clutch CL2 is connected (plugged into the paper PCA). • This defect can be caused by improper timing on the ITB clutch gears. Make sure that the cams are in sync. The two white gears on the left side of the printer should have two timing marks pointing toward each other . – Cams with a single line sho[...]

  • Página 178

    176 Chapter 9 Image quality EN • The paper does not meet HP paper specifications. • The printer ’s operating environment does not meet specifications. • The print density is set incorrectly .Change to a darker setting and retry printing. • The DC controller PCA is defective. • The high-voltage power supply PCA is defective. • The tran[...]

  • Página 179

    EN Image defect details 177 9 • The internal mirror or optics are contaminated. • The laser scanner is damaged. • The document scanner needs to be recalibrated. • There is a problem in the contact image sensor . • There is a problem in the formatter . Full-page ghosting occurs when an image prints in full color on one page, but a faded co[...]

  • Página 180

    178 Chapter 9 Image quality EN • T oner collected on the transfer belt can cause smudging on the back of the page. Smudges commonly appear on the edges of p ages after the media size is changed. The belt is self-cleaning and the smudging will normally clear within a few pages. • T oner on the edge of the media is usually caused by toner collect[...]

  • Página 181

    EN Image defect details 179 9 • The letterhead you are using is printed on rough paper . Try a smooth xerographic paper . If this solves your problem, consult with the printer of your letterhead to verify that the paper used meets the specifications for this printer . • Media does not meet the specifications for this printer . Only use media th[...]

  • Página 182

    180 Chapter 9 Image quality EN • Loose toner is in the printer . • The toner cartridge is defective. • The paper is too smooth. • The driver setting for the paper type is wrong. • The fuser is defective.. Print a configuration page, and refer to the color blocks at the bottom of the page. Replace the toner cartridge of the color or colors[...]

  • Página 183

    EN Image defect details 181 9 • Use paper with lower resistivity . • Make sure the humidity and temperature are within specifications. • Do not use Automatic Duplex mode. Duplex manually or not at all. • Check for a defective light pipe sensor . If defective, replace the toner level sensor . • Remove the toner cartridge and manually check[...]

  • Página 184

    182 Chapter 9 Image quality EN • There is dirt on the paper . • The fusing rollers are dirty . • The paper does not meet HP specifications. • The toner cartridge is defective. • The fusing assembly is defective. • There is dirt in the printer . • The static eliminator is dirty or is not grounded, allowing a static charge to remain on [...]

  • Página 185

    EN Image defect details 183 9 • This may be a repetitive defect. If so, the lines will be repeated at a consistent interval down the page. • The printer needs to be cleaned. • There is a problem in the heating element. V ertical white lines • If white lines or streaks appear only in the black areas of the printed media, print several config[...]

  • Página 186

    184 Chapter 9 Image quality EN Overhead transp arency defects Overhead transparencies may display any of the image quality defects shown in the previous samples. In addition, because transparencies are pliable while in the print path, they are subject to being marked by the media-handling components. Note Allow transparencies to cool at least 30 se[...]

  • Página 187

    EN Overhead transparency defects 185 9 • If the transparency colors are dull or dark, ensure the transparencies meet the specifications for this printer (part number C2934A for letter , and C2936A for A4). • The selected colors are undesirable when printed. Select different colors in your software application or printer driver . • Spots and s[...]

  • Página 188

    186 Chapter 9 Image quality EN If the transparencies have streaks, this could be due to condensed wax from the toner making its way onto the fuser assembly rollers during the fusing process. T ry cleaning the fuser rollers using the following process: 1 Saturate a corner of a lint-free, static-free wipe with isopropyl alcohol. 2 Open the alternate [...]

  • Página 189

    EN Repetitive defects troubleshooting 187 9 Repetitive defect s troubleshooting Repetitive defects are defect s that occur on the page. Most repetitive defects are caused by problems with one of the following: See the service manual for the repetitive defect ruler . See page 188 for the defect spacing chart. CAUTION Do not expose the imaging drum t[...]

  • Página 190

    188 Chapter 9 Image quality EN • If the problem is dust, remove the dust with isopropyl alcohol applied with a lint-free, static-free wipe. T ry this only if the print defect is unacceptable and the only other alternative is replacing the imaging drum. • Defects caused by exposure to light might clear up over time. If severe, replace the imagin[...]

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    EN Repetitive defects troubleshooting 189 9 Imaging drum exposed to light (not to scale) www.GovTechMedia.com[...]

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    190 Chapter 9 Image quality EN www.GovTechMedia.com[...]

  • Página 193

    EN Overview 191 Overview This chapter provides wiring diagrams. www.GovTechMedia.com[...]

  • Página 194

    192 Chapter 10 Wiring diagrams EN Wiring Diagrams Wiring diagram for 4500 serial number xxG ... and below (1 of 2) J1007 J61 J62 J60 J601 J602 J1009 J1004 5 J1013 J1010 J1008 J1006 Cassette paper sensor Cassette p aper size detection switch Multi-purpose tray pick-up solenoid Multi-purpose tray paper sensor Last paper sensor Cassette pick-up soleno[...]

  • Página 195

    EN 193 10 Wiring diagram for 4500 serial number xxG ... and below (2 of 2) Fusing unit pressure release sensor DC controller Laser/scanner assembly 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 J32 J31 PS6 13 13 123 25 FIX ICL J1601 J1301 J1001 J1019 J9002 J1012 J701 J9003 J9004 7 51 3 High-voltage power supply DUPLEX UNIT Devel[...]

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    194 Chapter 10 Wiring diagrams EN Wiring diagram for 4500 serial number xxH... and above and 4550 (1 of 2) www.GovTechMedia.com[...]

  • Página 197

    EN 195 10 Wiring diagram for 4500 serial number xxH... and above and 4550 (2 of 2) www.GovTechMedia.com[...]

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    196 Chapter 10 Wiring diagrams EN www.GovTechMedia.com[...]

  • Página 199

    EN Overview 197 Overview This chapter provides information on obtaining training, support, and materials. www.GovTechMedia.com[...]

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    198 Chapter 11 Services and support resources EN How to get training Lecture/lab training (U.S. only) Service technicians who want individual, hands-on training can attend regularly scheduled lecture/lab training classes. These classes are offered throughout the country . T o receive the latest schedule, call HP FIRST at (800) 333-1917, or see the [...]

  • Página 201

    EN Support resources—North America 199 11 Support resources—North America HP Customer Care Reseller Sales and Service Support Center The HP Customer Care Reseller Sales and Service Support Center is available for technical support to assist service technicians. The support center can be reached at (800) 544-9976 (U.S.). HP end-user support opti[...]

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    200 Chapter 11 Services and support resources EN to anyone with FTP access to the Internet. Access through the World Wide W eb is available at URL http://www .hp.com/go/support or http://www .hp.com/go/resellertraining/. T elephone assist ance—in warranty Call the HP Customer Care Center at (208) 323-2551 Monday through Friday from 6 am to 10 pm [...]

  • Página 203

    EN HP end-user support options 201 11 Ordering part s Field replaceable and accessory part numbers are found in Chapter 8 of this manual. Replacement parts can be ordered from HP’ s Commercial Support Services Organization-Americas (CSSO-A) or HP’s Commercial Support Services Organization-Europe (CSSO-E). Use only accessories specifically desig[...]

  • Página 204

    202 Chapter 11 Services and support resources EN • Other local telephone numbers may also be available Ordering field replaceable unit s The HP Color LaserJet 4500 printer is designed to be repaired by replacing field replaceable units (FRUs). Part numbers are located in chapter 8 and can be ordered from CSSO-A or CSSO-E. Exchange and recycling p[...]

  • Página 205

    EN HP end-user support options 203 11 Ordering document ation and software The table below shows ordering sources for related documentation and software. T elephone numbers for the various sources are: • Commercial Support Services Organization-Americas (CSSO-A) (1)(800) 227-8164 (US only) • Commercial Support Services Organization--Europe (CSS[...]

  • Página 206

    204 Chapter 11 Services and support resources EN Support resources—Asia Pacific and Europe HP Customer Care Centers in Asia Pacific Country Customer Care Center Service Center Singapore 65-2725300 Hong Kong 800-96-7729 Vietnam 84 8 8234530 84 8 8294485 84 4 9431718 Indonesia 62-21-3518788 Philippines 632-829-5387 632-829-5388 632-829-5389 Thailan[...]

  • Página 207

    EN 205 Acronyms and abbreviations AC Alternating current AUTOCONT Automatic continue BNC A 10-Base 2 connector used with coaxial cables CFG Configuration on control panel DC Direct current DCPS Direct current power supply MS-DOS Disk operating system DIMM Dual inline memory module DPI Dots per inch DTR Dat a terminal ready DTR line Dat a terminal r[...]

  • Página 208

    206 Appendix A Acronyms and abbreviations EN MB Megabyte MEM Memory MIO Modular input/output MP pickup roller Multipurpose tray pick-up roller MP T ray Multipurpose tray MSDS Material safety data sheets NVRAM Nonvolatile random-access memory Ohm A unit of measure of electrical resi stance OHT Overhead transparency PCA Printed-circuit assembly PCB P[...]

  • Página 209

    EN Index 207 Symbols +24 Vdc power supply 72 +3.3 Vdc power supply 72 +5 Vdc power supply 72 A abbreviations 205 – 206 AC power supply 72 accessories See also consumables acronyms 205 – 206 adjusting color balance 164 air filters 114 alphabetical parts list 148 – 155 assemblies PCB 136 B bidirectional parallel cable pin configuration 81 bidir[...]

  • Página 210

    208 Index EN imaging drum cartridge 114 intermediate transfer belt 114 toner cartridges 114 transfer roller 114 consumables 118 approximate replacement intervals 102 drum kit 102 error messages 103 fuser kit 103 HP 6 identifying 114 ordering 201 replacing 103 toner cartridges 102 transfer kit 103 control panel messages 8 – ?? alphabetical message[...]

  • Página 211

    EN Index 209 Index home position detection sensor (PS5) 20 HP Customer Care Center 200, 204 HP JetDirect print servers 77 HP LaserJet Family Paper Specification Guide 92 HP Parts Direct Ordering 113 HP Planet Partners 108 HPColorSmart II 161 I I/O 75 LocalTalk 78 I/O switching 80 identifying consumables 114 IEEE-1284 compliant parallel cables 82 im[...]

  • Página 212

    210 Index EN memory 115 configuration report 84 ordering 115 part numbers 115 product description 115 menu service 54 messages, control panel 8 – ?? models drum drawers 124 monitors, affect on color 159 N network connectivity 116 NVRAM 60 NVRAM initialization instructions 69 results 69 NVRAM values, changing 51 O ordering consumables 201 document[...]

  • Página 213

    EN Index 21 1 Index power supply +24 Vdc 72 +3.3 Vdc 72 +5 Vdc 72 AC 71, 72 DC 71, 72 high-voltage 71, 74 print servers HP JetDirect 77 printer cable pin configuration 81 configuration page, interpreting 83 interfaces 81 line voltage 6 messages 103 operation commands 51 options 117 protecting 6 register adjust 51 storage 6 testing 51 troubleshootin[...]

  • Página 214

    212 Index EN service mode access 52 menu 51 menu map 53 service menu items 54 service menu, access 52 software, ordering 203 Standard RGB (sRGB) 161 support assistance 199 information, obtaining 199 support resources 199 Asia Pacific 204 supported products iv system requirements, Fast InfraRed Receiver (FIR) 78 systems, protection 74 T test 61 deve[...]

  • Página 215

    EN Index 213 Index W warranty assistance 199 in-warranty 200 post-warranty 200 Windows FIR compliance 79 wiring diagrams 192 – 195 www.GovTechMedia.com[...]

  • Página 216

    214 – Index EN www.GovTechMedia.com[...]

  • Página 217

    Service W ebsites HP Customer Care Online Software drivers , suppor t documentation, and frequently asked questions http://www .hp.com/go/support HP T echnical T raining (Nor th Amer ica) Classes and schedules http://www .hp.com/go/resellertraining Pa r t s P ar ts information http://outfield.external.hp.com/spi/welcome.htm For support resources in[...]

  • Página 218

    Service telephone numbers All numbers listed are f or Nor th America only . HP Customer Care Reseller Sales and Ser vice Suppor t Center Dealer pre/post sales and service suppor t (800) 544-9976 U .S. Only (800) 363-6594 Canada Customer Care Center User technical-suppor t questions, LaserJet f ax (208) 323-2551 Customer Inf ormation Center Sales de[...]

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    EN www.GovTechMedia.com[...]

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    *5963-7921* * * 5963-7921 596 3 -79 2 1 copy righ t © 2000 Hew let t-P ack ard C o. www .hp .com/support /lj4 5 5 0 english www.GovTechMedia.com[...]