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30 November, 1999
COPY QUALITY TROUBLESHOOTING
7.1.5 VERTICAL BLACK LINES
H545T505.WMF
H545T503.WMF
Possible Cause (Scanner)
• Defective contact image sensor element(s).
• Dirt or dust on the exposure glass.
• Dirty white roller in the ADF.
Action:
1. Clean the exposure glass and the shading white roller.
2. Replace the contact image sensor.
Possible Cause (Printer)
• Damaged cleaning blade.
• Dirty hot roller stripper(s).
Action:
1. Replace the cartridge.
2. Clean the hot roller strippers.
7-5
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