Dirt On The Top Edge Or Back Of The Paper; Undulated Printing At The Right Edge (Scanning Start Position) - Kyocera FS-3040MFP Service Manual

(9) Dirt on the top edge or back of the paper.

Print example
Toner contamination in vari-
ABC ous parts.
123
Defective transfer roller.

(10) Undulated printing at the right edge (scanning start position).

Print example
Defective polygon motor
(laser scanner unit).
Defective main PWB.
This vertical
line should
be straight.
Causes
Dirty edges and back of the paper can be caused by toner
accumulated on such parts as the paper chute guide,
paper conveying paths, the bottom of the drum and devel-
oping unit, and the fuser unit inlet. Clean these areas and
parts to remove toner.
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.
Causes
Replace the laser scanner unit (see page 1-5-16).
Replace the main PWB (see page 1-5-34).
Check procedures/corrective measures
Check procedures/corrective measures
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