2-99
Confidential
■ Vertical streaks
Fig. 2-13
<User Check>
• Clean the corona wire of the drum unit.
• Return the corona wire cleaning tab to the “▲” position.
• This problem may disappear after printing multiple
sheets of paper.
• Refer to <How to clean the drum unit> to remove the
dirt from the exposure drum using a cotton applicator.
• Replace the drum unit with a new one.
• Replace the toner cartridge with a new one.
• Wipe the LED ASSY with a soft, lint-free cloth.
(Refer to Fig. 2-10 (P2-93).)
Step Cause Remedy
1 Dirt in the paper feed system Wipe dirt off.
2
A ground wire or ground plate
installation failure (Grounding
is not performed correctly.)
Retighten the screws of each ground wire or
ground plate. Repair the bend of the tray
ground spring of the T1. (Refer to the figure
below.)
3 Dirt on the fuser unit Replace the fuser unit.
4 LED ASSY failure Replace the appropriate LED ASSY.
<Bottom of paper tray>
Tray ground spring
Paper tray
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