Lexmark CS820

Lexmark printers, copiers
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Sam
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Joined: Sat Oct 21, 2017 9:42 pm

Lexmark CS820

Postby Sam » Thu Dec 02, 2021 11:45 am

Lexmark CS820, C6160
Blank or white pages, or one color missing check
  1. a Remove the transfer belt.
    b Check if the cable shield end of the transfer belt contact is touching the black only retract coupler.
    Does the transfer belt contact interfere with the BOR coupler?
    Y: Go to step 2.
    N: Go to step 3.
  2. Reinstall, repair, or replace the transfer belt contact.
    Does the problem remain?
    Y: Go to step 5.
    N: The problem is solved.
  3. Check the cable for proper connection.
    • Check the controller board socket JVD01.
    • Check the cable connected to the printhead.
    Is the cable properly connected?
    Y: Go to step 5.
    N: Go to step 4.
  4. Reseat the cable.
    Does the problem remain?
    Y: Go to step 5.
    N: The problem is solved.
  5. a From the home screen, touch Settings > Device > Notifications > Show Supply Estimates.
    b Check the remaining life of the photoconductor units and developer units.
    Is the photoconductor unit or developer unit near or at its end of life?
    Y: Go to step 6.
    N: Go to step 7.
  6. Replace the appropriate photoconductor unit or developer unit.
    Does the problem remain?
    Y: Go to step 7.
    N: The problem is solved.
  7. a Enter the Diagnostics menu, and then navigate to: Advanced Print Quality Samples > Advanced Print Quality Samples
    b Check the test page.
    Is only one color missing?
    Y: Go to step 8.
    N: Go to step 7.
  8. Check the contacts of the photoconductor unit and developer unit with the affected color.
    Are the contacts clean?
    Y: Go to step 10.
    N: Go to step 9.
  9. Clean the contacts.
    Does the problem remain?
    Y: Go to step 10.
    N: The problem is solved.
  10. Do the following:
    • If the missing color is cyan, magenta, or yellow, then replace the appropriate developer unit.
    • If the missing color is black, then replace the black developer unit.
    Does the problem remain?
    Y: Go to step 11.
    N: The problem is solved.
  11. a Enter the Diagnostics menu, and then navigate to: Printer diagnostics & adjustments > Motor tests
    b Select the developer unit with the affected color, and then touch Start.
    Do the developer unit drive couplers rotate?
    Y: Go to step 13.
    N: Go to step 12.
  12. Replace the EP/developer/toner add gearbox.
    Does the problem remain?
    Y: Go to step 13.
    N: The problem is solved.
  13. a Remove the main HVPS, and then clean its contacts.
    b Reinstall the main HVPS.
    Does the problem remain?
    Y: Go to step 14.
    N: The problem is solved.
  14. Replace the main HVPS.
    Does the problem remain?
    Y: Go to step 15.
    N: The problem is solved.
  15. Check the continuity of the main HVPS cable.
    Does the cable have continuity?
    Y: Go to step 17.
    N: Go to step 16.
  16. Replace the cable.
    Does the problem remain?
    Y: Go to step 17.
    N: The problem is solved.
  17. a Enter the Diagnostics menu, and then navigate to: Printer setup > EP setup > Toner patch sensor adjust > Clean sensing and laser optics Let the cleaning operation run for three minutes.
    b From the home screen, touch Settings > Reports > Print Quality Pages.
    Does the problem remain?
    Y: Go to step 18.
    N: The problem is solved.
  18. a Turn off the printer to let the printhead shutters remain open.
    b Remove the developer and PC combos, and then clean the printhead lenses using a lint‑free cloth.
    Does the problem remain?
    Y: Go to step 19.
    N: The problem is solved.
  19. Check the motor (printhead wiper) for damage.
    Is the motor free of damage?
    Y: Go to step 21.
    N: Go to step 20.
  20. Replace the motor.
    Does the problem remain?
    Y: Go to step 21.
    N: The problem is solved.
  21. Check the printhead wiper actuator rack for misalignment and damage.
    Is the actuator rack properly engaged with the printhead wipers, and is it free of damage?
    Y: Go to step 23.
    N: Go to step 22.
  22. Reinstall or replace the printhead wiper actuator rack.
    Does the problem remain?
    Y: Go to step 23.
    N: The problem is solved.
  23. Replace the printhead.
    Does the problem remain?
    Y: Go to step 24.
    N: The problem is solved.
  24. Replace the controller board.
    Does the problem remain?
    Y: Contact the next level of support.
    N: The problem is solved.

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