Konica Minolta magicolor 1600W, Service Manual

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Field Service V er. 1.0 Nov. 200 8 19. Image quality problems
115
magicolor 1600W magicolor 1650EN
T
roubleshooting
19.1.4 Uneven density in CD
A. Typical faulty images
B. Troubleshooting procedure
4036fs4046c0
4036fs4047c0
Step Section Check item Result Action
1
Imaging
cartridge
Are there scratches or lines evi-
dent on the photo conductor sur-
face?
YES Replace the imaging cartridge.
2 Is the outside dirty? YES Clean.
3
Is the transfer belt dirty with fin-
gerprints or oil?
YES Clean.
4
Is the transfer belt dirty or
scratched?
YES
Wipe the surface clean of dirt with
a soft cloth.
Replace the scratched transfer
belt with a new imaging cartridge.
5 Is the terminal dirty? YES Clean.
6
2nd transfer
roller
Is the 2nd transfer roller dirty or
scratched?
YES Replace the 2nd transfer roller.
7
Have steps 1 to 6 eliminated the
problem?
NO
Replace the toner cartridge.
→
Replace high voltage unit.