Printer 4-Color: White Lines In Cd, White Bands In Cd, Colored Lines In Cd, And Colored Bands In Cd - Konica Minolta Bizhub C350 Service Manual

Image quality problem
4.3.28 Printer 4-Color: white lines in CD, white bands in CD, colored lines in CD,
and colored bands in CD
A. Typical Faulty Images
White lines in CD
4036fs4025c0
B. Troubleshooting Procedure
Step Section
Image Transfer Fingerprints, oil, or other foreign
1 Belt Unit matter is evident on the Image
Transfer Belt.
Image Transfer Belt is dirty or
2 scratched.
Cleaning Blade is not effective in
3
removing toner completely.
Image Transfer Image Transfer Roller is dirty or
4
Roller Unit scratched.
Paper path There is foreign matter on paper
5
path.
Image Transfer Paper Separator
6
Fingers are damaged or dirty.
Paper Dust Paper dust accumulates on Paper
7
Remover Dust Remover.
Fusing Unit Fusing Entrance Guide Plate is
8
dirty or damaged.
Fusing Paper Separator Fingers
9
are dirty.
The problem has been eliminated
through the checks of steps up to 9.
10
bizhub C350 Field Service Ver. 2.0 April 2004
White bands in CD Colored lines in CD
4036fs4026c0
Check Item
4-86
Colored bands in CD
4036fs4027c0 4036fs4028c0
Result Action
YES Clean with specified solvent.
(See Maintenance.)
YES Clean dirty belt with a soft cloth.
Change Image Transfer Belt Unit
if belt is damaged.
YES Clean Cleaning Blade.
change Image Transfer Belt Unit.
YES Change Image Transfer Roller
Unit.
YES Remove foreign matter.
YES Clean or change.
YES Clean or change.
YES Clean.
Change Fusing Unit.
YES Clean.
NO Change Image Transfer Roller
Unit.
→ Change Image Transfer Belt
Unit.
→ Change MFP Control Board