Black Streaks Or Bands; Black Spots - Minolta Di350 Service Manual

FrameMaker Ver.5.5E(PC) Di350 TROUBLESHOOTING
98.12.09

(5) Black Streaks or Bands

Section Step
Engine 1 Is the PC Drum dirty?
2 Has toner spilled from the I/C
inside of the copier?
3 Is the PC Drum charge voltage
terminal in good condition?
4 Is the grid voltage terminal in
good condition?
5 Are the Fusing Rollers dirty with
foreign matter?
IR 1 Are the mirrors, lens, and Origi-
nal Glass dirty with foreign mat-
ter?
2 Do the connections from CCD to
HGB remain intact?
3 Do the connections from HGB to
UN2 remain intact?

(6) Black Spots

Section Step
Engine 1 Is the PC Drum dirty?
2 Has toner spilled from the I/C
inside of the copier?
3 Is the PC Drum charge voltage
terminal in good condition?
4 Is the grid voltage terminal in
good condition?
5 Are the Fusing Rollers dirty with
foreign matter?
IR 1 Are the mirrors, lens, and Origi-
nal Glass dirty with foreign mat-
ter?
2 Do the connections from CCD to
HGB remain intact?
3 Do the connections from HGB to
UN2 remain intact?
Check Item
Check Item
T-49
Result
YES Clean the PC Drum.
YES Clean the interior and change I/
C.
NO Check and change as neces-
sary.
NO Check and change as neces-
sary.
YES Clean or change the Fusing
Rollers.
NO Change I/C.
YES Clean the mirrors, lens, and
Original Glass.
NO Reconnect.
YES Change CCD, HGB, or UN2, in
that order.
NO Reconnect.
Result
YES Clean the PC Drum.
YES Clean the interior and change I/
C.
NO Check and change as neces-
sary.
NO Check and change as neces-
sary.
YES Clean or change the Fusing
Rollers.
NO Change I/C.
YES Clean the mirrors, lens, and
Original Glass.
NO Reconnect.
YES Change CCD, HGB, or UN2, in
that order.
NO Reconnect.
Action
Action