Void Areas, White Spots - Konica Minolta magicolor 2400W Service Manual

Field Service Ver. 4.0 Feb. 2006
20.1.9

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
Paper 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
paper path?
Is the Fusing Entrance Guide
Plate dirty or scratched?
Have steps 1-8 eliminated the
problem?
20. 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
157