Cause:
• The charger is stained.
• The cleaning unit for PCU has worn out.
• The drum surface is scratched.
Solution:
1. In the [Main Unit: Maintenance] group on the [Adjustment Settings for Operators] menu,
select 0522: [Execute Charger Cleaning] and execute [Charger Cleaning].
2. Print the image. Is the problem resolved?
Yes Finished!
No Go to the next step.
3. Detach the charge unit and check its surface. Is the surface stained?
Yes Contact your service representative.
No Go to the next step.
4. Detach the photoconductor unit and check the drum surface. Is the surface stained or
scratched?
Stained: Replace the cleaning unit for PCU.
Scratched: Replace the photoconductor unit.
Neither: Contact your service representative.
5. If the problem persists even though you have replaced the cleaning unit for PCU or
photoconductor unit, contact your service representative.
3. Troubleshooting Image Quality Problems
20
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