Service Manual
Page 6
... and exit deflector removal 4-18 Controller board removal 4-19 Developer unit removal 4-21 Duplex sensor removal 4-21 Exit deflector and bin full sensor flag removal 4-24 Fuser assembly removal 4-26 Fuser drive motor assembly removal 4-29 Fuser exit sensor removal 4-30 High-voltage power supply (HVPS) assembly removal 4-31 Image transfer unit (ITU) removal 4-33 Imaging unit (IU) removal 4-35 Low-voltage...
... and exit deflector removal 4-18 Controller board removal 4-19 Developer unit removal 4-21 Duplex sensor removal 4-21 Exit deflector and bin full sensor flag removal 4-24 Fuser assembly removal 4-26 Fuser drive motor assembly removal 4-29 Fuser exit sensor removal 4-30 High-voltage power supply (HVPS) assembly removal 4-31 Image transfer unit (ITU) removal 4-33 Imaging unit (IU) removal 4-35 Low-voltage...
Service Manual
Page 37
... could be set the size from being processed if they should have toner on the operator panel (Settings->General Settings->Timeouts->Print Timeout.) • Remove and flex the paper in the tray. • Make sure the paper is applied to "Operator panel display blank, five beeps" on page... panel. 2. Press Menu ( ) on page 2-28. Go to "Operator panel display is dim and unchanging. Therefore the toner goes into the ITU cleaner which cannot process massive amounts of the paper guides. • The multipurpose feeder does not automatically sense the paper size. 5025-2xx, 4xx Symptom...
... could be set the size from being processed if they should have toner on the operator panel (Settings->General Settings->Timeouts->Print Timeout.) • Remove and flex the paper in the tray. • Make sure the paper is applied to "Operator panel display blank, five beeps" on page... panel. 2. Press Menu ( ) on page 2-28. Go to "Operator panel display is dim and unchanging. Therefore the toner goes into the ITU cleaner which cannot process massive amounts of the paper guides. • The multipurpose feeder does not automatically sense the paper size. 5025-2xx, 4xx Symptom...
Service Manual
Page 77
...Service tip: Some background problems can be caused by running a large amount of graphics in the JHVPS1 connector. Using non-Lexmark toner cartridges may also cause background problems. Some problems occur by using rough paper or incorrectly setting the operator panel settings...8. 8 Clean the printhead. Problem resolved. Replace the failing part: • Image transfer unit (ITU). See "Image transfer unit (ITU) removal" on page 4-31. See "High-voltage power supply (HVPS) assembly removal" on page 4-33. • High-voltage power supply (HVPS). Problem resolved. See "High-...
...Service tip: Some background problems can be caused by running a large amount of graphics in the JHVPS1 connector. Using non-Lexmark toner cartridges may also cause background problems. Some problems occur by using rough paper or incorrectly setting the operator panel settings...8. 8 Clean the printhead. Problem resolved. Replace the failing part: • Image transfer unit (ITU). See "Image transfer unit (ITU) removal" on page 4-31. See "High-voltage power supply (HVPS) assembly removal" on page 4-33. • High-voltage power supply (HVPS). Problem resolved. See "High-...
Service Manual
Page 79
...cartridge contacts clean on page 4-49. Are all the spring-loaded pins in the HVPS free to move in the image transfer unit (ITU). See "Printhead removal" on both the pins and IU? 6 Are all conductors continuous? 8 Replace the printhead. No Clean the developer cartridge contacts. Replace ...an equal amount of spring force? See "High-voltage power supply (HVPS) assembly removal" on page 4-21. To run Reset Color Cal: 1. Check the main drive gear assembly and ITU for correct operation. See "Developer unit removal" on page 4-31. Select Reset Color Cal, and press Select ( ). ...
...cartridge contacts clean on page 4-49. Are all the spring-loaded pins in the HVPS free to move in the image transfer unit (ITU). See "Printhead removal" on both the pins and IU? 6 Are all conductors continuous? 8 Replace the printhead. No Clean the developer cartridge contacts. Replace ...an equal amount of spring force? See "High-voltage power supply (HVPS) assembly removal" on page 4-21. To run Reset Color Cal: 1. Check the main drive gear assembly and ITU for correct operation. See "Developer unit removal" on page 4-31. Select Reset Color Cal, and press Select ( ). ...
Service Manual
Page 80
...unit or one of the imaging unit. Remove and inspect the imaging unit. See "Image transfer unit (ITU) removal" on page 4-35. Is the distance between repeating bands. See "Imaging unit (IU) removal" on page 4-33. Go to step 4. See "Developer unit removal" on page 4-35. 2-46 Service ...the developer units that match the missing color (black, cyan, magenta, or yellow). Select Print Defects, and press Select ( ). Replace the ITU. See "Imaging unit (IU) removal" on page 4-21. Replace the fuser. Go to step 3. 3 Does the distance measure 37.7, 55, or 78.5 mm? 4 ...
...unit or one of the imaging unit. Remove and inspect the imaging unit. See "Image transfer unit (ITU) removal" on page 4-35. Is the distance between repeating bands. See "Imaging unit (IU) removal" on page 4-33. Go to step 4. See "Developer unit removal" on page 4-35. 2-46 Service ...the developer units that match the missing color (black, cyan, magenta, or yellow). Select Print Defects, and press Select ( ). Replace the ITU. See "Imaging unit (IU) removal" on page 4-21. Replace the fuser. Go to step 3. 3 Does the distance measure 37.7, 55, or 78.5 mm? 4 ...
Service Manual
Page 82
See "Imaging unit (IU) removal" on page 4-33. Contact your next level of random marks is loose material moving around inside the printer and attaching to step 3. Yes Problem resolved. ..., or transfer belt. Clean or replace the faulty unit. No Replace the developer unit. See "Image transfer unit (ITU) removal" on page 4-35. See "Imaging unit (IU) removal" on page 4-21. See "Developer unit removal" on page 4-35. Yes Inspect the imaging unit by looking at the individual developers and photo conductors. Replace the...
See "Imaging unit (IU) removal" on page 4-33. Contact your next level of random marks is loose material moving around inside the printer and attaching to step 3. Yes Problem resolved. ..., or transfer belt. Clean or replace the faulty unit. No Replace the developer unit. See "Image transfer unit (ITU) removal" on page 4-35. See "Imaging unit (IU) removal" on page 4-21. See "Developer unit removal" on page 4-35. Yes Inspect the imaging unit by looking at the individual developers and photo conductors. Replace the...
Service Manual
Page 87
... V dc 13 +24 V dc 14 Ground 16 Ground Are the values approximately correct? See "High-voltage power supply (HVPS) assembly removal" on page 4-33. If the problem persists, go to step 5. See "Image transfer unit (ITU) removal" on page 4-31. Check the three spring-loaded contacts between the HVPS and the... ITU located at the right rear of the printer and above the HVPS. The display should indicate Tray 1...
... V dc 13 +24 V dc 14 Ground 16 Ground Are the values approximately correct? See "High-voltage power supply (HVPS) assembly removal" on page 4-33. If the problem persists, go to step 5. See "Image transfer unit (ITU) removal" on page 4-31. Check the three spring-loaded contacts between the HVPS and the... ITU located at the right rear of the printer and above the HVPS. The display should indicate Tray 1...
Service Manual
Page 171
...Image transfer unit (ITU) removal See "Image transfer unit (ITU) assembly" on page 4-35. 5. See "Imaging unit (IU) removal" on page 7-5 for the part number. 1. Remove the waste toner bottle. Write down the number of the ITU path. Rotate the left spring (B), and pivot the cam away from the ITU so the spring ...and the cam are held out of the new ITU before installing it is easier to the ITU. 6. See "Right cover assembly removal" on page 4-60. 4. Disconnect the two springs (A) from the barcode after the installation, and it . Remove the imaging unit (IU). You will need the 16...
...Image transfer unit (ITU) removal See "Image transfer unit (ITU) assembly" on page 4-35. 5. See "Imaging unit (IU) removal" on page 7-5 for the part number. 1. Remove the waste toner bottle. Write down the number of the ITU path. Rotate the left spring (B), and pivot the cam away from the ITU so the spring ...and the cam are held out of the new ITU before installing it is easier to the ITU. 6. See "Right cover assembly removal" on page 4-60. 4. Disconnect the two springs (A) from the barcode after the installation, and it . Remove the imaging unit (IU). You will need the 16...
Service Manual
Page 191
... 7-8 for reinstallation. 4. Disconnect the toner density sensor cable from JFUSES1 connector (B) on the controller board. See "Image transfer unit (ITU) removal" on the controller board. See "Rear shield removal" on the left side. Remove the ITU. Remove the two screws (C) securing each sensor. Note: Observe the routing of the cable(s) for the part number. Note: The...
... 7-8 for reinstallation. 4. Disconnect the toner density sensor cable from JFUSES1 connector (B) on the controller board. See "Image transfer unit (ITU) removal" on the controller board. See "Rear shield removal" on the left side. Remove the ITU. Remove the two screws (C) securing each sensor. Note: Observe the routing of the cable(s) for the part number. Note: The...
Service Manual
Page 230
...Motor Detect 3-16 Print Tests input source tests 3-10 Prt Quality Pgs 3-11 Printer Setup Configuration ID 3-18 Defaults 3-17 Engine Setting 1-4 3-18 ITU Barcode 3-19 Model Name 3-18 Page Counts 3-17 Serial Number 3-18 Registration 3-4 Bottom Margin 3-4 Left Margin 3-4 Quick Test 3-5 Right Margin ...menu 3-25 diagnostics mode 3-21 exit deflector parts catalog 7-4 removal 4-24 F Factory Defaults 3-26 fan, service check 2-25 Flash Test 3-17 Font Sharpening 3-27 frame, lower left removal 4-39 right removal 4-41 fuser assembly parts catalog 7-4 removal 4-26 Reset Fuser Cnt 3-19 service check 2-24, 2-...
...Motor Detect 3-16 Print Tests input source tests 3-10 Prt Quality Pgs 3-11 Printer Setup Configuration ID 3-18 Defaults 3-17 Engine Setting 1-4 3-18 ITU Barcode 3-19 Model Name 3-18 Page Counts 3-17 Serial Number 3-18 Registration 3-4 Bottom Margin 3-4 Left Margin 3-4 Quick Test 3-5 Right Margin ...menu 3-25 diagnostics mode 3-21 exit deflector parts catalog 7-4 removal 4-24 F Factory Defaults 3-26 fan, service check 2-25 Flash Test 3-17 Font Sharpening 3-27 frame, lower left removal 4-39 right removal 4-41 fuser assembly parts catalog 7-4 removal 4-26 Reset Fuser Cnt 3-19 service check 2-24, 2-...
Service Manual
Page 232
...Count 3-17 Prt Mono Pg Count 3-17 Prt Quality Pgs configuration menu 3-24 diagnostic menu 3-11 Q quick test duplex 3-13 single-page 3-5 R removals autocompensator mechanism (ACM) 4-15 bin full sensor 4-18 bin full sensor flag 4-24 controller board 4-19 covers front cover assembly 4-2 left cover assembly ...fuser assembly 4-26 fuser drive motor assembly 4-29 fuser exit sensor 4-30 getting started 4-2 high-voltage power supply (HVPS) 4-31 image transfer unit (ITU) 4-33 imaging unit (IU) 4-35 left lower frame 4-39 low-voltage power supply (LVPS) 4-37 main drive gear assembly 4-45 photoconductor unit...
...Count 3-17 Prt Mono Pg Count 3-17 Prt Quality Pgs configuration menu 3-24 diagnostic menu 3-11 Q quick test duplex 3-13 single-page 3-5 R removals autocompensator mechanism (ACM) 4-15 bin full sensor 4-18 bin full sensor flag 4-24 controller board 4-19 covers front cover assembly 4-2 left cover assembly ...fuser assembly 4-26 fuser drive motor assembly 4-29 fuser exit sensor 4-30 getting started 4-2 high-voltage power supply (HVPS) 4-31 image transfer unit (ITU) 4-33 imaging unit (IU) 4-35 left lower frame 4-39 low-voltage power supply (LVPS) 4-37 main drive gear assembly 4-45 photoconductor unit...