Void Areas, White Spots - Konica Minolta magicolor 2500W Service Manual

Field Service Ver. 1.0 Aug. 2006
19.1.9

Void areas, white spots

A. Typical faulty images
B. Troubleshooting procedure
Step Section
1
Drum cartridge
2
3
4
Transfer belt unit
5
6
7
Media path
8
9
Void areas
4036fs4050c0
Check item
Are there scratches or lines evi-
dent on the photo conductor sur-
face?
Is the outside dirty?
Is the transfer belt dirty with fin-
gerprints or oil?
Is the transfer belt dirty or
scratched?
Is the 2nd transfer roller dirty or
scratched?
Is the ground terminal connected
properly?
Is there a foreign object in the
media path?
Is the fusing entrance guide plate
dirty or scratched?
Have steps 1 to 8 eliminated the
problem?
19. Image quality problems
White spots
4036fs4051c0
Result
YES Replace the drum cartridge.
YES Clean.
YES Clean.
Wipe the surface clean of dirt with
a soft cloth.
YES
Replace the scratched transfer
belt with a new transfer belt unit.
YES Replace the 2nd transfer roller.
NO Correct.
YES Remove the foreign object.
YES Clean or replace.
NO Replace the toner cartridge.
Action
169