Minolta Di251 - (13) Periodically Uneven Image

FrameMaker Ver.5.5(PC) Di251/Di351 TROUBLESHOOTING
05.03.01
T- 6 0
(13) Periodically Uneven Image
Section Step Check Result Action
Engine
1 Developing Unit is driven properly. NO Correct or change drive
coupling mechanism.
2 PC Drum and Image Transfer Roller
aredrivenproperly.
NO Correct or change drive
coupling mechanism.
3 Synchronizing Roller is driven properly. NO Correct or change drive
coupling mechanism.
4 Fusing Unit is driven properly. NO Correct or change drive
coupling mechanism.
5 PH Assy is installed properly. YES Change I/C.
Change Master Board.
NO Correct.
IR
1 Scanner Motor is driven properly. NO Correct or change drive
coupling mechanism.
2 Scanner Drive Cables are wound prop-
erly.
NO Wind cables properly.
3 Scanner rails are damaged or dirty
with foreign matter.
YES Clean or change.
4 CCD2 Board and MFB2 Board are
connected properly.
NO Correct.
5 MFB2 Board and Master Board are
connected properly.
YES Change CCD Unit.
Change MFB2 Board.
NO Correct.
<Typical Faulty Images>
4011T528AA