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TROUBLESHOOTING
COPY QUALITY TROUBLESHOOTING
7.1.5. Vertical Black Lines
Possible Cause (Scanner)
When the problem occurs during book copying:
•
Defective contact image sensor element(s).
When the problem occurs during ADF copying:
•
Dirt or dust on the ADF exposure glass.
•
Dirty white plate in the ADF.
Action:
1. Clean the exposure glass and the shading plate (for both book and ADF).
2. Replace the contact image sensor.
Possible Cause (Printer)
•
Damaged cleaning blade.
•
Dirty hot roller stripper(s).
Action:
1. Replace the CTM.
2. Clean the hot roller strippers.
h523t505.wmf
7-6
June 10th, 1997
h523t503.wmf
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