Printer 4-Color: Void Areas, White Spots - Minolta CF2002 Service Manual

(34) Printer 4-Color: void areas, white spots

<Troubleshooting Procedure>
Section Step
Image 1 There are void areas at the
Check front side or high density sec-
tion.
2 There are void areas in the
trailing edge.
Transfer 3 Fingerprints, oil, or other for-
Belt Unit eign matter is evident on the
Transfer Belt.
4 Transfer Belt is dirty or
scratched.
Transfer 5 Transfer Roller is dirty or
Roller Unit scratched.
6 Charge Neutralizing Cloth is
not separated and ground ter-
minal is connected properly.
Paper path 7 There is foreign matter on
paper path.
8 Pre-Image Transfer Guide
Plate is damaged or dirty.
Paper Dust 9 Paper dust accumulates on
Remover Paper Dust Remover.
10 The problem has been elimi-
nated through the checks of
steps up to 9.
<Typical Faulty Images>
Void areas White spots
4011T008AA
Check Item
T-114
4011T030AA
Result Action
YES
T-108
 
YES Perform "2nd Transfer Adjust"
of "Image Adjust" under Tech.
Rep. mode.
YES Clean with specified solvent.
(See DIS/REASSEMBLY,
ADJUSTMENT.)
YES Clean dirty belt with a soft
cloth. Change Transfer Belt
Unit if belt is damaged.
YES Change Transfer Roller Unit.
NO Correct or change.
YES Remove foreign matter.
YES Clean or change.
YES Clean.
NO Change Transfer Roller Unit.