Void Areas, White Spots - Konica Minolta MagiColor 1600W Service Manual

19. Image quality problems
19.1.9

Void areas, white spots

A. Typical faulty images
B. Troubleshooting procedure
Step Section
1
2
3
Imaging
cartridge
4
5
2nd transfer
6
roller
7
Media path
8
9
120
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 ground terminal connected
properly?
Is the 2nd transfer roller dirty or
scratched?
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?
Field Service Ver. 1.0 Nov. 2008
White spots
4036fs4051c0
Result
YES Replace the imaging cartridge.
YES Clean.
YES Clean.
Wipe the surface clean of dirt with
a soft cloth.
YES
Replace the scratched transfer
belt with a new imaging cartridge.
NO Correct.
YES Replace the 2nd transfer roller.
YES Remove the foreign object.
YES Clean or replace.
NO Replace the toner cartridge.
Action