2-101
Confidential
■ Light vertical streaks and bands on one color image
<User Check>
• Clean the corona wire of the drum unit.
• Check that there is no dust on the toner cartridge.
• Refer to <How to clean the drum unit> to remove the dirt from the exposure drum using a
cotton applicator.
• Wipe the LED ASSY with a soft, lint-free cloth. (Refer to Fig. 2-10 (P2-93).)
• Replace the drum unit with a new one.
• Replace the toner cartridge with a new one.
■ White horizontal stripes on one color image
<User Check>
• This problem may disappear after printing multiple sheets of paper.
• Replace the drum unit with a new one.
• Replace the toner cartridge with a new one.
Step Cause Remedy
1
Dirty charge electrodes Clean the electrodes of the drum unit and
those of the machine. (Refer to Fig. 2-6 (P2-
63) and Fig. 2-7 (P2-63).)
2 LED ASSY failure Replace the appropriate LED ASSY.
Step Cause Remedy
1
Dirty charge electrodes Clean the electrodes of the drum unit and
those of the machine. (Refer to Fig. 2-6 (P2-
63) and Fig. 2-7 (P2-63).)
2
Scratch or dirt on the fuser
unit
Replace the fuser unit.
3
High-voltage power supply
PCB failure
Replace the high-voltage power supply PCB.
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