Printer 4-Color: Colored Spots - Minolta CF2002 Service Manual

(35) Printer 4-Color: colored spots

<Troubleshooting Procedure>
Section Step
IU 1 The surface of the PC Drum is
scratched.
Image 2 Fingerprints, oil, or other for-
Transfer eign matter is evident on the
Belt Unit Image Transfer Belt.
3 Image Transfer Belt is dirty or
scratched.
Image 4 Image Transfer Roller is dirty
Transfer or scratched.
Roller Unit
Paper path 5 There is foreign matter on
paper path.
Paper Dust 6 Paper dust accumulates on
Remover Paper Dust Remover.
Fusing Unit 7 Fusing Belt is dirty or
scratched.
8 The problem has been elimi-
nated through the checks of
steps up to 7.
<Typical Faulty Image>
C F
4011T027AA
Check Item Result
T-115
Action
YES Change IU.
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 Change Image Transfer Roller
Unit.
YES Remove foreign matter.
YES Clean.
YES Change Fusing Unit.
NO Change Image Transfer Roller
Unit.
→
Change Image Transfer
Relt Unit.
→
Change Fusing Unit.