Specifications

1.7 VERTICAL WHITE LINES OR BANDS—2 (THIN, DISTINET)
- Phenomenon -
Vertical white lines appear on the copy.
- Possible Causes -
1. Paper dust on the edge of cleaning blade
2. Scratched drum
3. Scratched hot roller
- Action -
Press the cleaning blade release lever down several times. Make a copy
and if the white lines still occur, go to the next step.
Make a copy and stop the machine when the paper reaches the transport
section. Do white lines appear on the copy?
No Yes
Replace the drum if it is scratched.
Replace the hot roller if it is scratched.
NOTE: If the drum is scratched, find out what caused the scratches on the
drum and correct the problem.
• Paper Jam
• Incorrect positioning of the pick-off pawls
• Foreign substances on the cleaning brush and/or blade
• Carrier leakage
When replacing the drum, perform the drum initial setting using SP mode #66.
1 December 1990
6-11