1.8 HORIZONTAL BLACK/WHITE LINES
- Problem -
Black or white lines perpendicular to the paper feed
direction appear on the copy image.
- Possible Causes -
1. Drum or hot roller is scratched.
If black lines appear at 94.6 mm intervals, the cause
is a scratched drum, scratched hot roller, or toner build up.
2. Toner adheres to the drum surface.
Due to insufficient cleaning, foreign matter may accumulate on the blade,
causing toner to stick to the drum surface when the drum stops.
- Action -
Is the drum scratched?
No Yes
Replace the drum.
Is the hot roller scratched?
No Yes
Replace the hot roller.
If toner adheres to the drum surface, clean the drum with water. Also clean or
replace the cleaning blade.
A219T505.wmf
COPY QUALITY 20 December 1996
7-10
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