Blank Copy; Black Copy - Minolta Di151 Service Manual

FrameMaker Ver.5.5E(PC) Di151 TROUBLESHOOTING
00.03.10
(1)

Blank copy

Section Step
1 There is drive to the Imaging
Cartridge (I/C).
2 I/C shutter opens and closes
(at the PC Drum).
3 Laser shutter (located in the
laser beam path between the
Engine PH Unit and PC Drum) opens
and closes.
4 The image transfer current ter-
minal is free of dirt and con-
nected properly.
1 Wiring between the Scanner
and Control Board is con-
nected. Flat cables are con-
IR
nected.
(2)

Black copy

Section Step
1 The drum charge voltage ter-
minal is dirty.
2 Black copy is still produced
even after the I/C has been
Engine
replaced.
3 Wiring between the PH Unit
and Master Board is con-
nected.
1 Exposure Lamp is ON.
IR
2 Wiring between the Scanner
and Control Board is con-
nected.
Check Result
NO
NO
NO
YES Change the High Voltage Unit.
NO
YES Change the Scanner Interface
NO
Check Result
YES Clean.
YES Change High Voltage Unit.
YES Change the PH Unit.
NO
YES Change Scanner.
NO
T-20
Action
Correct or change drive cou-
pling.
Correct.
Correct.
Change PH Unit.
Change Master Board.
Change Image Transfer Roller.
Clean or connect correctly.
Board.
Change Control Board.
Change Scanner.
Connect.
Action
Change Master Board.
Change Master Board.
See troubleshooting proce-
dure for malfunction code
C14A3.
T-15
Change Control Board.
Connect.