White/Shady Deletion Lines Appear Vertically - Epson ColorPage EPL-C8200 Service Manual

EPSON ColorPage EPL-C8200
5. White/Shady deletion lines appear vertically to the paper feeding direction
Phenomenon:
White/light deletion lines run vertically to the paper feeding direction.
Perform the preliminary inspection.
Parts to inspect:
Developer ASSY, DRUM CARTRIDGE, BELT TRANSFER ASSY, 2ND BTR, HEAT ROLL, PRESSURE
ROLL, OIL ROLL ASSY, FEED ROLL ASSY
Item Check Points
Periodicity

1
Do the lines appear periodically?
Controller PWB malfunction
2
Replace the Controller PWB with a new one.

Has the problem been solved?
Chapter 5 Troubleshooting
Remedy (When abnormal)
Replace the faulty part.
Note: You can find the faulty part based
on the periodicity and the roller
circumference.
Replace the Controller PWB.
Paper Feeding Direction
Revision A
SER578X
5-116