Rough Image; Periodically Uneven Image - Minolta Di350 Service Manual

FrameMaker Ver.5.5E(PC) Di350 TROUBLESHOOTING
98.12.09

(12) Rough Image

Section Step
Engine 1 Is the Image Transfer Roller
dirty?
2 Is the image transfer current ter-
minal intact?
IR 1 Do the connections from CCD to
HGB remain intact?
2 Do the connections from HGB to
UN2 remain intact?

(13) Periodically Uneven Image

Section Step
Engine 1 Is the Developing Unit drive gear
cracked or dirty with foreign mat-
ter?
2 Is the PC Drum drive gear
cracked or dirty with foreign mat-
ter?
3 Is the Synchronizing Roller drive
gear cracked or dirty with foreign
matter?
4 Is the Fusing Unit drive gear
cracked or dirty with foreign mat-
ter?
5 Is the PH Assy secured properly? YES
IR 1 Is the Scanner Motor drive gear
cracked or dirty with foreign mat-
ter?
2 Is the Scanner Motor secured
properly?
3 Is the Scanner secured properly?
4 Are the Scanner Drive Cables
wound properly?
5 Are the Scanner rails damaged
or dirty with foreign matter?
6 Do the connections from CCD to
HGB remain intact?
7 Do the connections from HGB to
UN2 remain intact?
Check Item
Check Item
T-52
Result
YES Clean or change.
YES Change HV1, I/C, PH Unit, or
PWB-A, in that order.
NO Check and change as neces-
sary.
NO Reconnect.
YES Change CCD, HGB, or UN2, in
that order.
NO Reconnect.
Result
YES Clean or change.
YES Clean or change.
YES Clean or change.
YES Clean or change.
Change the I/C or PWB-A.
NO Secure properly.
YES Clean or change.
NO Secure properly.
NO Secure properly.
NO Wind the cables properly.
YES Clean or change.
NO Reconnect.
YES Change CCD, HGB, or UN2, in
that order.
NO Reconnect.
Action
Action