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

Includes: standard controller df-601 pc-101/pc-201 pc-401 ad-501 fs-501
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bizhub C350 Field Service Ver. 2.0 April 2004
4.3.27
Printer 4-Color: white lines in FD, white bands in FD, colored lines in FD,
and colored bands in FD
A. Typical Faulty Images
White lines in FD
4036fs4021c0
B. Troubleshooting Procedure
Step
Section
Image Check
A white line or colored line in FD.
1
Image Transfer
Fingerprints, oil, or other foreign
2
Belt Unit
matter is evident on the Image
Transfer Belt.
Image Transfer Belt is dirty or
3
scratched.
Cleaning Blade is not effective in
4
removing toner completely.
Image Transfer
Image Transfer Roller is dirty or
5
Roller Unit
scratched.
Paper path
There is foreign matter on paper
6
path.
Image Transfer Paper Separator Fin-
7
gers are damaged or dirty.
Paper Dust
Paper dust accumulates on Paper
8
Remover
Dust Remover.
Fusing Unit
Fusing Entrance Guide Plate is dirty
9
or damaged.
Fusing Paper Separator Fingers are
10
dirty.
The problem has been eliminated
through the checks of steps up to 10.
11
White bands in FD
Colored lines in FD
4036fs4022c0
Check Item
4-85
Image quality problem
Colored bands in FD
4036fs4023c0
4036fs4024c0
Result
Action
YES Clean the Comb Electrode by
moving the Comb Electrode
Cleaning Lever.
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.
YES Clean.
Change Fusing Unit.
YES Clean.
NO
Change Image Transfer Roller
Unit.
→ Change Image Transfer Belt
Unit.
→ Change MFP Control Board

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