Konica Minolta Magicolor 5440 DL - Manual (Page 229)

Image Quality Problems Main Unit Field Service
4-42
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5.1.10 Colored spots
A. Typical Faulty Images
B. Troubleshooting Procedure
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Colored spots
Step Section Check Item Result Action
1
Toner Cartridge
Are the spots in a single color? YES Change the Toner Cartridge.
2
Are there scratches or lines evi-
dent on photo conductor surface?
YES Change the Toner Cartridge.
3
Transfer Belt Unit
Is the Transfer Belt dirty with fin-
gerprints, oil, or other foreign mat-
ter?
YES Clean.
4
Is the Transfer Belt dirty or
scratched?
YES
Wipe the surface clean of dirt with
a soft cloth.
Change a scratched Transfer Belt
for a Transfer Belt Unit.
5
Is the Transfer Roller dirty or
scratched?
YES Change the Transfer Roller.
6 Media path
Is there a foreign matter on the
media path?
YES Remove foreign matter.
7 Fusing Unit
Is the Fusing Roller dirty or
scratched?
YES Change the Fusing Unit.
8
Has the problem been eliminated
through the checks of steps up to
7?
NO
Change the Toner Cartridge.
→ Change the Transfer Belt Unit.
→ Change the Fusing Unit.
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