Printer 4-Color: White Lines In Fd, White Bands In Fd, Colored Lines In Fd, And Colored Bands In Fd - Minolta CF2002 Service Manual

(27) Printer 4-Color: white lines in FD, white bands in FD, colored lines in FD, and
colored bands in FD
White lines in FD White bands in FD
4011T015AA
<Troubleshooting Procedure>
Section Step
Image Check 1
Image Trans- 2
fer Belt Unit
3
4
Image Trans- 5
fer Roller Unit
Paper path 6
7
Paper Dust 8
Remover
Fusing Unit 9
10 Fusing Paper Separator
11 The problem has been elim-
<Typical Faulty Images>
4011T020AA
Check Item
A white line or colored line
in FD.
Fingerprints, oil, or other
foreign matter is evident on
the Image Transfer Belt.
Image Transfer Belt is dirty
or scratched.
Cleaning Blade is not effec-
tive in removing toner com-
pletely.
Image Transfer Roller is
dirty or scratched.
There is foreign matter on
paper path.
Image Transfer Paper Sepa-
rator Fingers are damaged
or dirty.
Paper dust accumulates on
Paper Dust Remover.
Fusing Entrance Guide
Plate is dirty or damaged.
Fingers are dirty.
inated through the checks of
steps up to 10.
T-104
Colored lines in FD Colored bands in FD
4011T017AA
Result
YES Clean the Comb Electrode by
moving the Comb Electrode
Cleaning Lever.
YES Clean with specified solvent.
(See DIS/REASSEMBLY,
ADJUSTMENT.)
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 or change.
YES Clean.
NO Change Image Transfer Roller
Unit.
→
Change Image Transfer
Belt Unit.
→
Change PIC Board.
4011T023AA
Action