2-79
Confidential
White horizontal streaks
<User Check>
- This problem may disappear after printing multiple sheets of paper.
When the machine has not been used for long periods, try printing
several sheets of paper.
- Replace the drum unit with a new one.
- Replace the toner cartridge with a new one.
Step Cause Remedy
1
Dirt on electrodes of the drum unit
and those of the machine
Clean the electrodes of the drum unit and
those of the machine. (Refer to Fig. 2-10 or
Fig. 2-11.)
2
Dirt on electrodes of the toner
cartridge and those of the machine
Clean the electrodes of the toner cartridge
and those of the machine. (Refer to Fig. 2-
10, Fig. 2-11.)
3 Fuser unit failure Replace the fuser unit.
4
High-voltage power supply PCB
failure
Replace the high-voltage power supply PCB
ASSY.
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