2GL/2FV/2FW
1-5-22
(9) Dirt on the top edge or back of
the paper.
Causes
1. Toner contamination in various parts.
2. Defective transfer roller.
Causes Check procedures/corrective measures
1. Toner contamination in various parts.
Dirty edges and back of the paper can be caused by toner accumulated
on such parts as the paper chute, paper transportation paths, the bottom
of the drum and developer, and the fuser unit inlet. Clean these areas
and parts to remove toner.
2. Defective transfer roller.
If the transfer roller is contaminated with toner, clean the transfer roller
using a vacuum cleaner or by continuously printing a low-density page
until the symptom has faded away.
(10)Undulated printing at the right
edge (scanning start position).
Causes
1. Defective laser scanner unit.
2. Defective engine controller circuit in the engine/high voltage PWB
Causes Check procedures/corrective measures
1. Defective laser scanner unit.
Defective polygon motor in the laser scanner unit. Replace the laser
scanner unit. See page 1-6-20.
2. Defective engine controller circuit in the
engine/high voltage PWB.
Replace the engine/high voltage PWB. See page 1-6-17.
ABC
123
This vertical
line should
be straight.
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