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3.1.3 Colored Streaks (1)
Colored streaks parallel to the paper feed direction appear.
CEZ540
Cause:
• The charge roller is stained.
• The cleaning unit for PCU has worn out.
• The drum unit surface is scratched.
Solution:
1.
To identify the affected color, print three full-page, solid-fill A3 or DLT sheets
for each of white and black, and three full-page, halftone A3 or DLT sheets for
each of cyan, magenta, and yellow.
2.
Detach the charge roller of the affected color and check its surface. Is the
surface stained?
Yes
Wipe the charge roller with a dry rag to remove the stain. If the stain
cannot be removed, replace the charge roller. Go to the next step.
No
Go to the next step.
3.
Detach the drum unit of the affected color and check the drum surface. Is the
surface stained or scratched?
Stained: Replace the cleaning unit for PCU.
Scratched: Replace the drum unit.
Neither:
Contact your service representative.
4.
If the problem persists even if you replace the cleaning unit for PCU or drum
unit, contact your service representative.
Note:
• For details about replacing the charge roller, cleaning unit for PCU and drum unit,
see Replacement Guide.
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