Lexmark 4090-001 manual

4090-001 Color Jetprinter™ 2070 Le xmark and Lexmark with diamond design are trademarks of Lexmark International, Inc., registered in the United States and/or other countries. • T able of Contents •I n d e x • Safety and Notices • T rademarks • Star t Diagnostics • Manuals Men u[...]

Third Edition (J uly , 1997) The follo wing paragr aph does not apply to the United Kingdom or any countr y where such provisions are inconsistent with local law: LEXMARK INTERNA TIONAL, INC. PR O VIDES THIS PUBLICA TION “AS IS” WITHOUT WARRANTY OF ANY KIND , EITHER EXPRESS OR IMPLIED , INCLUDING, BUT NO T LIMITED T O , THE IMPLIED W ARRANTIES [...]

iii 4090-001 Conte nts 1 C o n t e n t s .............................................. i i i P r e f a c e ............................................... v i S a f e t yI n f o r m a t i o n ..................................... v i G e n e r a lI n f o r m a t i o n .................................... 1 - 1 Resolution and Print Speed ..........[...]

iv 4090-001 R e p a i rI n f o r m a t i o n ...................................... 4 - 1 Handling ESD-Sensitive Parts .......................... 4 - 1 A d j u s t m e n t s ........................................ 4 - 2 R e m o v a lP r o c e d u r e s................................. 4 - 2 R e l e a s i n gP l a s t i cL a t c h e s..............[...]

v 4090-001 P r e v e n t i v eM a i n t e n a n c e ................................ 6 - 1 Lubrication Specifications . . ............................ 6 - 1 P a r t sC a t a l o g ......................................... 7 - 1 H o wT oU s eT h i sP a r t sC a t a l o g......................... 7 - 1 A s s e m b l y1 :C o v e r s ..................[...]

4090-001 vi Preface 2 This manual is divided into the f ollowing chapters: 1. General Information contains a gener al description of the printer and the maintenance approach used to repair it. Special tools and test equipment are listed in this chapter , as w ell as general en vironmental and saf ety instructions. 2. Diagnostic Inf ormation contain[...]

4090-001 Preface vii Sicherheitshinweise • Die W ar tungsinformationen für dieses Produkt wurden zur V erwendung durch einen W ar tungsf achmann entwick elt und sollten nicht von anderen benützt w erden. • Zusätzliches Risiko eines elektrischen Schlags und kör perlicher V erletzung existier t während des A useinander nehmens und der W ar t[...]

4090-001 viii P autas de Seguridad • La inf or mación sobre el mantenimiento de este producto fue escrita para el personal de mantenimiento cualificado y no para cualquier otro usuario . • Existen ma yores riesgos de descargas eléctr icas y daños personales durante el desmontaje y la reparación de la máquina. El personal cualificado compre[...]

4090-001 Preface ix Chinese Safety Inf ormation Ko r e a n S a fe t y I n f o r m a t io n[...]

General Information 1-1 4090-001 1. General Inf ormation The Color Jetprinter TM 2070 (4090-001) pr inter is a personal, near laser-quality inkjet printer . The pr int car tridge contains single-unit customer-replaceable supply items . Dual printheads provide color and true black p rinting without changing pr intheads. The b lack car tridge has a t[...]

General Information 1-2 4090-001 After you complete the repair , perform tests as needed to verify the repair . Abbreviations Unique T ools Required For Service P arallel Wrap Plug P/N 1319128 CE Customer Engineer CSU Customer Setup ESD Electrostatic Discharge FR U Field Replaceable Unit HVPS High V oltage P ower Supply LED Light-Emitting Diode L V[...]

Diagnostic Inf ormation 2-1 4090-001 2. Diagnostic Inf ormation Use the error indicator table , symptom tables , ser vice checks , and diagnostic aids to deter mine the f ailing par t. Star t Ser vice error indications sho w as a series of flashes of the P ower light. There is a pause between each series of flashes. If y our pr inter has an error i[...]

Diagnostic Inf ormation 2-2 4090-001 Error Indicator T able P ower -On Self T est (POST) Sequence When you turn the printer on it performs a POST . T urn your printer on and check f or a correct POST operation b y obser ving the f ollowing: 1. The busy light comes on and goes off . 2. The power light comes on. 3. The carrier moves o ver the mainten[...]

2-3 4090-001 If your printer does not complete POST , locate the symptom in the f ollowing table and tak e the indicated action. POST Symptom T able Symptom Action No P ower light and no motors run Go to the ’P ower Service Check’ on page 2-11 . P ower light, but n o bus y light Replace the system board. F eeds paper Go to the ’First Print Li[...]

Diagnostic Inf ormation 2-4 4090-001 Symptom T ables Locate the symptom in the f ollowing tables and tak e the appropr iate action. Carrier T ransport Problems Communications Pr oblems Maintenance Station Prob lems Op P anel Symptom Action • No carrier movement • Slow carrier mov ement • Carrier stops • Carrier slams side frame Go to the ?[...]

2-5 4090-001 Pa pe r F ee d P ro bl em s Po we r P r o bl e m s Print Quality Prob l ems Symptom Action P aper fails to stop at first print line Go to the ’First Print Line Ser vice Check’ on page 2-6 . • F ails to pick paper • Picks more than one sheet of paper • Picks paper b ut fails to f eed • P aper jams • P aper fails to e xit ?[...]

Diagnostic Inf ormation 2-6 4090-001 Service Checks En velope Feed Service Check First Print Line Service Chec k FRU Action 1 Env elope Guide Be sure the env elope guides have been turned to the env elope load positions. Be sure the env elope guides are against the env elopes. Pe r f o r m t h e ’P aper Feed Service Check’ on page 2-8 . FRU Act[...]

2-7 4090-001 Maintenance Station Service Check The maintenance station has two functions: 1. Cleans the printhead nozzles dur ing the print operation. 2. Seals the printhead when it is not being used to pre vent the nozzles from dr ying. FRU Action 1 Maintenance Station Assembly As the carrier moves to the right o ver the maintenance station, a slo[...]

Diagnostic Inf ormation 2-8 4090-001 P aper Feed Ser vice Chec k If your printer does not ha ve paper jam problems , continue with the ser vice chec k. If your printer does hav e a paper jam problem, e xamine it for the f ollowing bef ore you begin the ser vice chec k: • Check the entire paper path f or obstructions. • Be sure there is not too [...]

2-9 4090-001 2 P aper Feed Motor A noisy or chattering motor or a motor that fails to turn, can be caused by: • An open or shor t in the motor • An open or shor t in the motor driver on the system board • A bind in the paper f eed mechanism With the paper f eed motor cable disconnected from the system board, check f or 5 to 10 ohms between pi[...]

Diagnostic Inf ormation 2-10 4090-001 P aper Path Service Chec k Examine the printer for the f ollowing bef ore you begin this service check: • Check the entire paper path f or obstructions. • Be sure the paper guides are not worn or broken and are posi- tioned against the paper without binding or buc kling the paper . • Be sure the correct t[...]

2-11 4090-001 P arallel P or t Service Check P ower Service Check FRU Action 1 P arallel P or t Run a test page to be sure the printer can print. Run the ’P arallel P or t T est’ on page 3-5 .I ft h et e s t f ails, replace the system board. FRU Action 1 P ower Supply Disconnect J3 from the system board and check the f ollowing v oltages on the[...]

Diagnostic Inf ormation 2-12 4090-001 Print Quality Service Check FRU Action 1 Print Car tridge Be sure the printer contains good print car tridges. 2 Printhead Carr ier Assembly Reseat the printhead cables in the system board and check the f ollowing par ts f or wear or damage: • Print Car tridge Latch • Latch Spring •C a r r i e r 3 System [...]

2-13 4090-001 5 P aper Feed Ink smudging and smearing can be caused by paper problems or prob lems in the paper feed area. Check the f ollowing: • Correct type of paper is being used. Also check the paper f or curl or wrinkles. • F eed rollers for w ear, dirt, or looseness. • G e a r sf o rw e a ro rb i n d s . • P aper path for obstruction[...]

Diagnostic Inf ormation 2-14 4090-001 T ranspor t Service Check FRU Action 1 T ranspor t Motor Check the motor f or binds, or loose motor pulley . Disconnect the transport motor (J4) from the system board. Check f or 8 to 18 ohms between pins 1 and 2 on the motor cab le. If the reading is incorrect, replace the motor . Check f or motor pins shor te[...]

Diagnostic Aids 3-1 4090-001 3. Diagnostic Aids Use these diagnostic test procedures to verify a repair . There are two w a ys to enter test procedures, each procedure will indicate the method to use: Procedure 1: • Press and hold the P aper Feed b utton while tur ning the printer on. Release the button when the printer completes POST . Procedure[...]

Diagnostic Aids 3-2 4090-001 Encoder Sensor T est This test disables the printer motors to allow y ou to manually mov e the carrier to verify the encoder is working correctly . To r u n t h e t e s t : 1. T ur n the printer off and place a two pin jumper on connector J6 as shown belo w . (Pins 1 & 2) 2. Press and hold the P aper F eed b utton w[...]

3-3 4090-001 4090-001 Initialize Error Log This test allows y ou to track ne w errors. Use this procedure to reset the error log to zero . The error log is especially helpful in diagnosing inter mittent or difficult prob lems. To r u n t h e t e s t : 1. T ur n the printer off and place a two pin jumper on connector J6 as shown belo w . (Pins 1 &am[...]

Diagnostic Aids 3-4 4090-001 P aper Sensor T est This test checks the paper sensor on the system board. During the test, the power light remains on. The Busy light reflects the paper sensor status in the f ollowing manner: • On - paper is in sensor • Off - paper is not in sensor To r u n t h e t e s t : 1. T ur n the printer off and place a two[...]

3-5 4090-001 4090-001 Pa r a l l e l P o r t T e s t This test perf orms a wrap around test between the printer parallel por t and the parallel port test connector . This test requires a parallel por t wrap plug. Install the wr ap plug in the parallel por t bef ore you star t the test. To r u n t h e t e s t : 1. T ur n the printer off and place a [...]

Diagnostic Aids 3-6 4090-001 Print NVRAM Contents This test prints the contents of NVRAM in he xadecimal f or mat. To r u n t h e t e s t : 1. T ur n the printer off and place a piece of paper in the manual paper slot. 2. Press and hold the P aper F eed b utton while tur ning the printer on. Release the button when the printer completes POST . The [...]

3-7 4090-001 4090-001 Te s t Pa g e This test prints the test page. T o run a complete test page of blac k and color patter ns, be sure the print car tridges are in good condition. Install a blac k print car tridge in the left side of the printhead cradle and a color print car tr idge in the rig ht sid e. T o enter the test: 1. T urn the pr inter o[...]

Repair Information 4-1 4090-001 4. Repair Inf o rmation This chapter e xplains how to mak e adjustments to the pr inter and how to remo ve def ective par ts . Note: Read the f ollowing before handling electronic parts. When working on the printer , alwa ys unplug the pr inter from the wall outlet. High v oltage is present in the pow er supply as lo[...]

4-2 4090-001 Adjustments The user is directed, in the Printer Control program, to perf or m the head to head and bidirectional alignment adjustments after replacing a print car tr idge . Remo v al Pr ocedures The f ollowing procedures are arranged according to the name of the printer par t discussed. Unplug the power cord bef ore removing an y par [...]

Repair Information 4-3 4090-001 Base Assembl y Remov al 1. Remov e the front cover . 2. Remov e the rear cover . 3. Disconnect the power supply connector at the system board. 4. Remov e the two screws from the maintenance station assembly . Pull up the right side of the mid frame assembly and pull f orward and remov e the maintenance station assemb[...]

4-4 4090-001 Carrier Frame Assembl y Remov al 1. Remov e the front cover . 2. Remov e the rear cover . 3. Remov e the base assembly . 4. Disconnect the paper feed motor connector from the system board. 5. Remov e the four scre ws [A] securing the carr ier frame to the left and right side frames and remov e the carr ier frame assemb ly .[...]

Repair Information 4-5 4090-001 Note: During reassembly: 1. Be sure the small feed roll spring e xtensions [B] are in the grov es of the small feed roll arms. 2. Be sure the shor t e xtensions of the two paper flap springs are trapped under the carrier frame [C]. Carrier T ranspor t Motor Remov al 1. Remov e the front cover . 2. Disconnect the tran[...]

4-6 4090-001 Code Module Remov al 1. Remov e the front cover . 2. Remov e the rear cover . 3. Gently pr y the Code Module from the system board noting the position of the notch in the module. The notch is down. Edge Guide Asm and Paper Load Shaft Remo val 1. Remov e the front cover . 2. Remov e the rear cover . 3. Remov e the paper load door and ma[...]

Repair Information 4-7 4090-001 Exit Drive Belt Remov al 1. Remov e the front cover . 2. Remov e the rear cover . 3. Remov e the c arrier frame assemb ly . 4. Remov e the paper load door and manual inser t tra y . 5. Remov e the s mall f eed roll shaft. 6. Unlatch the left side of the exit roller shaft and w ork the belt off the e xit roller pulley[...]

4-8 4090-001 Front C over Remo val 1. Place a screwdriver in slot [A] and release the co ver latches . 2. Slide the cov er forw ard and off the pr inter . T o reassemble: 1. Slide the cov er over the matching pieces on the bottom co ver . 2. Press in both sides opposite the cov er latches until they latch. Gutter P ad Remov al 1. Remov e the front [...]

Repair Information 4-9 4090-001 Inside Idler Gears Remo val 1. Remov e the front cover . 2. Remov e the rear cover . 3. Remov e the pr inter from the base assemb ly . 4. Remov e the paper feed motor . 5. Gently pr y the two idler gears from the left side frame . Be careful not to break the locking tabs [A].[...]

4-10 4090-001 Large Feed Roll Remo val 1. Remov e the front cover . 2. Remov e the rear cover . 3. Remov e the carr ier frame assemb ly . 4. Using a small screwdriver , break the four prongs off the compound idler gear and remov e the idler gear . 5. Remov e the large feed roll from the mid frame b y pulling it out of the f our mounting clips. Spre[...]

Repair Information 4-11 4090-001 Large Outside Gear Remo v al 1. Remov e the front cover . 2. Remov e the rear cover . 3. Remov e the paper load door and manual inser t tra y . 4. Remov e the C-clip from the feed arm assembly and remo ve the f eed ar m assembly . 5. Remov e the C -clip from the left side of the pic k roll shaft. 6. Pull the pick ro[...]

4-12 4090-001 Left Side Frame Assembl y Remov al 1. Remov e the front cover . 2. Remov e the rear cover . 3. Remov e the carr ier frame assemb ly . 4. Remov e the paper load door and manual inser t tra y . 5. Using a small screwdriver , break the four prongs off the compound idler gear [A] and remov e the idler gear . 6. Remov e the two screws [B] [...]

Repair Information 4-13 4090-001 Maintenance Station Assembl y Remov al 1. Remov e the front cover . 2. Remov e the rear cover . 3. Remov e the two screws from the maintenance station assembly , lift up the right side of the mid frame assembl y and slide the maintenance station assembly f orward, out of the printer . Maintenance Wipers and Caps Rem[...]

4-14 4090-001 P aper Feed Motor Remov al 1. Remov e the front cover . 2. Remov e the rear cover . 3. Remov e the base assembly . 4. Remov e the two screws securing the paper feed motor and remov e the motor . Note the routing of the motor cable. P aper Guide and EOF Flag Assembly Remo val 1. Remov e the front cover . 2. Remov e the rear cover . 3. [...]

Repair Information 4-15 4090-001 Note: During reassembly: 1. Be sure the small feed roll spring e xtensions [B] are in the grov es of the small feed roll arms. 2. Be sure the shor t e xtensions of the two paper flap springs are trapped under the carrier frame [C].[...]

4-16 4090-001 P aper Load Door Remov al Spread the left side frame where it joins the paper load door and remov e the door . Pick Roll Hub, Shaft and En velope Bucklers Remo val 1. Remov e the front cover . 2. Remov e the rear cover . 3. Remov e the paper load door and manual inser t tra y . 4. Slide the left paper guide to the r ight. 5. Remov e t[...]

Repair Information 4-17 4090-001 Printhead Cable, Cradle & P aper Deflector Remov al 1. Remov e the front cover . 2. Remov e the pr inthead carrier assembly . 3. Disconnect the printhead cable from the encoder card. Note the routing of the cable under the retaining clip on the carrier . 4. Separate the cradle from the printhead carrier assembly[...]

4-18 4090-001 Note: Be sure the cable is secured under the three retaining clips [B] on the back of the carrier . B[...]

Repair Information 4-19 4090-001 Printhead Carrier Assembl y Remov al 1. Remov e the front cover . 2. Unlock the two printhead cab le connectors and disconnect the printhead cable from the system board. 3. Remov e the r etainer from the right end of the carrier guide rod. 4. Slide the carrier guide rod t o the left, out of the printer . 5. Lift the[...]

4-20 4090-001 Rear Cover Remo val 1. Remov e the front cover . 2. Place a screwdriver in slot [A] and release the co ver latches . 3. Slide the cov er up and off the pr inter . 4. T o reassemble , place the cover o ver the tabs in the bottom cov er and press down until the cov er latches. Be sure the parallel connector snaps do not get trapped behi[...]

Repair Information 4-21 4090-001 Small Feed Roll Shaft, Rollers & P aper Flap Removal 1. Remov e the front cover . 2. Remov e the rear cover . 3. Remov e the c arrier frame assemb ly . 4. Spread the left and right side frames apar t far enough to remov e the small feed roll shaft assemb ly . Boss P aper G uide Feature Due to occasional paper bu[...]

Connector Locations 5-1 4090-001 5. Connector Locations The printer is shipped with the jumper pin setting in the follo wing static position. Be sure the jumper is installed on the correct pins. Communications J umper J7 pin 2 and 3.[...]

Connector Locations 5-2 4090-001 System Boar d Connectors[...]

5-3 4090-001 Encoder Card Connector Connector Connector Names J1 Printhead Cable 1 J2 Printhead Cable 2 J3 P ower Supply J4 T ranspor t Motor J5 P aper Feed Motor J6 T est Jumper J7 Communications J umper J8 Pa ra l l e l Por t SW1 P aper Feed Switch SW2 Po w e r S w i t c h S1 EOF Sensor U20 Code Module[...]

Preventive Maintenance 6-1 4090-001 6. Preventive Maintenance This chapter contains the lubrication specifications. F ollow these recommendations to pre vent prob lems and maintain optimum perf orm ance . Lubrication Specifications Lubricate only when par ts are replaced or as needed, not on a scheduled basis. Use grease P/N 1329301 to lubricate th[...]

P ar ts Catalog 7-1 4090-001 7. P ar ts Catalog How T o Use This P ar ts Catalog • SIMILAR ASSEMBLIES: If two assemb lies contain a major ity of identical par ts, the y are broken down on the same list. Common par ts are shown b y one index n umber . P ar ts peculiar to one or the other of the assemb lies are listed separately and identified by d[...]

P ar ts Catalog 7-2 4090-001 Assembl y 1: Cover s[...]

7-3 4090-001 Asm- Index Par t Number Units Description 1 -1 70G0594 1 Base Asm includes Exit T ra y , Gutter P ad, Feet -2 70G0595 1 F ront Cov er Asm, Access Cover , Button & LED Lens -3 69G4118 1 Rear Co ver -4 69G4119 1 Gutter P ad, Base Asm N/S 70G0591 1 Replaceable P ackage B/M (US) Includes: (Car ton, Cushion Set, Sealing T ape) N/S 70G05[...]

P ar ts Catalog 7-4 4090-001 Assembl y 2: Frames[...]

7-5 4090-001 Asm- Index Par t Number Units Description 2 -1 69G4120 1 Left Side F rame Sub-Asm without Gears Also order gears B/M 69G4127 -2 70G0574 1 Mid F rame with Star Rollers -3 69G4121 1 Right Side F rame -4 69G4122 1 Carrier F rame -5 69G4188 4 Screw , F rame Mounting (PP)[...]

P ar ts Catalog 7-6 4090-001 Assembl y 3: Paper Feed[...]

7-7 4090-001 Asm- Index Par t Number Units Description 3 -1 69G4074 1 P aper Guide Asm includes EOF Flag, Spring (Old style - works with old or new small f eed roll). See “Boss P aper Guide Feature” on page 4-21. -1 70G3039 1 P aper Guide Asm includes EOF F l a g ,S p r i n g( N e ws t y l e ,w o r k s with new small f eed roll only). See “Bo[...]

P ar ts Catalog 7-8 4090-001 Assembl y 4: Electronics[...]

7-9 4090-001 Asm- Index Par t Number Units Description 4 -1 70G2695 1 System Board, W/O Code Module If code module in old board is labeled: 70G0830 through 70G0835; 70G0841 through 70G0845, 70G2562, 70G2587, 70G2598, 70G2599, order new code module 70G3000. -2 70G0581 1 P ower Supply with Ground Plane , Insulator , Cov er -3 1339526 1342514 1339520 [...]

P ar ts Catalog 7-10 4090-001 Assembl y 4: Electronics (contin ued)[...]

7-11 4090-001 Asm- Index Par t Number Units Description 4 -4 70G3000 1 Code Module -5 69G4188 5 Screw , System Board Mounting (PP) NS 69G4188 1 Screw , Ground Jumper Mounting (PP) NS 69G4188 2 Jumper , 2-Pin (PP)[...]

P ar ts Catalog 7-12 4090-001 Assembl y 5: Carrier[...]

7-13 4090-001 Asm- Index Par t Number Units Description 5 -1 70G0585 1 Pr inthead Carrier B/M -2 70G0586 1 Printhead Cable (Folded) -3 70G0587 1 Rubber Back er -4 69G4157 1 Carrier Guide Rod -5 69G4156 1 Encoder Card Asm -6 69G4188 1 Screw , Encoder Card Mounting (PP) -7 69G4188 1 Retainer Right, Carrier Guide Rod (PP) -8 69G4188 1 E-Ring, Carr ier[...]

P ar ts Catalog 7-14 4090-001 Assembl y 6: Carrier T ranspor t 5 3 2 6 1 4[...]

7-15 4090-001 Asm- Index Par t Number Units Description 6 -1 69G4158 1 Carrier T ranspor t Motor & Pulley -2 69G4159 1 Carrier Belt -3 69G4403 1 Encoder Strip -4 69G4163 1 Idler Pulley T ension Asm -5 69G4188 2 Screw , Carrier T ranspor t Motor Mounting (PP) -6 69G4188 1 T ensioner , Encoder Str ip (PP)[...]

P ar ts Catalog 7-16 4090-001 Assembl y 7: Sheet Feeder[...]

7-17 4090-001 Asm- Index Par t Number Units Description 7 -1 69G4166 1 Right Edge Guide & Width Adjust Strip -2 69G4167 1 Left Edge Guide -3 69G4131 1 Upper P aper Suppor t -4 1367469 1 Pick Roll & Paper Load Shaft B/M -5 1367463 2 Pick Roll Hub Asm -6 1367019 1 Envelope Buc kler B/M, Left & Right -7 69G4169 1 Back Plate -8 69G4164 1 P [...]

P ar ts Catalog 7-18 4090-001 Assembl y 8: Maintenance Station[...]

7-19 4090-001 Asm- Index Par t numb er Units Description 8 -1 70G0589 1 Maintenance Station Asm -2 70G0590 1 Wiper and Cap B/M (one of each) -3 69G4188 1 Screw , Maintenance Station Mounting (PP)[...]

4090-001 X-1 Index 3 A Abbreviations 1-2 Adjustments 4-2 Assemblies 1 Covers 7-2 2F r a m e s 7-4 3 Paper Feed 7-6 4 Electronics 7-8 5 Carrier 7-12 6 Carrier Transport 7-14 7 Sheet Feeder 7-16 8 Maintenance Station 7-18 C Connector Locations 5-1 Connectors System Board 5-2 D Diagnostic Aids 3-1 Diagnostic Information 2-1 E Error Indicator Table 2-2[...]

4090-001 X-2 Removals Continued Paper Load Door 4-16 Paper Load Shaft 4-6 Pick Roll Hub 4-16 Pick Roll Shaft 4-16 Power Supply 4-16 Printhead Cable 4-17 Printhead Carrier 4-19 Printhead Cradle 4-17 Printhead Rubber Backer 4-19 Rear Cover 4-20 Right Side Frame 4-20 Small Feed Roll Shaft 4-21 Small Feed Rollers 4-21 Star Roller 4-21 System Board 4-21[...]