Lexmark 5028-135 CS720
Troubleshooting. Print quality 3. Blank or white pages check
| Action | Yes | No |
|---|---|---|
| Step 1 Make sure all the packing materials on the imaging unit are removed. Does the problem remain? |
Go to step 2. | The problem is solved. |
| Step 2 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? |
Go to step 3. | Go to step 5. |
| Step 3 Check the contacts between the imaging unit and developer unit of the affected color. Are the contacts clean? |
Go to step 5. | Go to step 4. |
| Step 4 Clean the contacts. Does the problem remain? |
Go to step 5. | The problem is solved. |
Step 5
|
Go to step 6. | The problem is solved. |
| Step 6 a Remove the imaging kit. b Enter the Diagnostics menu, and then navigate to: Printer diagnostics & adjustments > Motor tests c Select the developer unit motor of the affected color, and then touch Start. Does the motor run? |
Go to step 8. | Go to step 7. |
| Step 7 Replace the motor. See “Motor (EP drive) removal” Does the problem remain? |
Go to step 8. | The problem is solved. |
| Step 8 a Manually turn the motor. b While turning the motor, check if the couplers that drive the imaging kit move. Do the couplers move? |
Go to step 10. | Go to step 9. |
| Step 9 Replace the EP gear box. See “EP gear box removal”. Does the problem remain? |
Go to step 10. | The problem is solved. |
| Step 10 Check if the pins on the HVPS freely move. Do the pins freely move? |
Go to step 12. | Go to step 11. |
| Step 11 Replace the HVPS. See “HVPS removal”. Does the problem remain? |
Go to step 12. | The problem is solved. |
| Step 12 Check the continuity of the cable on the JSC1 connector on the controller board. Does the cable have continuity? |
Go to step 14. | Go to step 13. |
| Step 13 Replace the cable. Does the problem remain? |
Go to step 14. | The problem is solved. |
| Step 14 Replace the printhead. See “Printhead removal”. Does the problem remain? |
Go to step 15. | The problem is solved. |
| Step 15 Replace the controller board. See “Controller board removal”. Does the problem remain? |
Contact the next level of support. | The problem is solved. |