Black Spots - Minolta Di200 Service Manual

FrameMaker Ver.5.5(PC) Di200/Di251/Di351 TROUBLESHOOTING
01.01.17
(6)

Black Spots

Section Step
1 Paper path is dirty with toner.
2 PC Drum is dirty.
3 Fusing Rollers are dirty or scratchy.
4 Comb Electrode contact terminal is
dirty or deformed.
5 Grid voltage contact terminal is dirty or
deformed.
Engine
6 Charge Neutralizing Sheet contact ter-
minal is dirty or deformed.
7 Erase Lamp is dirty.
8 Erase Lamp is conducting.
1 Original Glass is dirty.
2 CCD2 Board and MFB2 Board are
connected properly.
IR
3 MFB2 Board and Master Board are
connected properly.
<Typical Faulty Images>
4011T521AA
Check Result
YES Clean.
YES Clean.
YES Clean or change.
YES Clean or change.
YES Clean or change.
YES Clean or change.
YES Clean.
YES Change I/C.
NO
YES Clean.
NO
YES Change CCD Unit.
NO
T-53
Action
Change High Voltage
Unit.
Change Master Board.
Change Erase Lamp.
Correct.
Change MFB2 Board.
Correct.