Uneven Pitch - Konica Minolta magicolor 2500W Service Manual

Field Service Ver. 1.0 Aug. 2006
19.1.17

Uneven pitch

A. Typical faulty images
B. Troubleshooting procedure
Step Section
1 Toner cartridge
2 PH unit
3 Toner cartridge
4 Drum cartridge
2nd transfer
5
roller
6 Fusing unit
7
Check item
Is the toner cartridge for each
color of toner installed in posi-
tion?
Is the PH unit secured in position
with the fixing screw?
Is the drive mechanism of the
toner Cartridge dirty or dam-
aged?
Is the photo conductor dirty,
scratched, or worn?
Are the 2nd transfer roller and
drive mechanism dirty, deformed,
or worn?
Are the rollers and drive mecha-
nism of the fusing unit dirty,
scratched, deformed, or worn?
Have steps 1 to 6 eliminated the
problem?
19. Image quality problems
4138fs4507c0
Result
NO Reinstall.
NO Secure it in position.
Clean or replace the toner car-
YES
tridge.
YES Replace the drum cartridge.
YES Replace the 2nd transfer roller.
YES Replace the fusing unit.
NO Replace the transfer belt unit.
Action
177