6.1.5. Vertical Black Lines
Possible Cause (Scanner)
•
Defective contact image sensor element(s).
•
Dirt or dust on the exposure glass.
•
Dirty white plate on the ADF.
Action:
1. Clean the exposure glass and the shading plate.
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.
H516T503.wmf
H516T512.wmf
TROUBLESHOOTING
August 2nd, 1995
COPY QUALITY TROUBLESHOOTING
6-6