Minolta DI450, Service Manual, Page: 211 / 271

T-20
(4) Fusing/Exit Misfeed
Fusing/Exit Misfeed Troubleshooting Procedures
• Paper is stopped at the Fusing Unit.
• Paper is stopped at the exit section.
Relevant Electrical Parts
Paper Exit Sensor (PC9)
Fusing Motor (M2) Exit/Duplex Switching Solenoid (SL3)
Master Board (PWB-A)
Step Check Result Action
1 Fusing Guide Plate is dirty or deformed. YES Clean or change.
2 Fusing Rollers are dirty or scratched. YES Clean or change.
3 Fusing Roller Paper Separator Fingers are
dirty, deformed, or worn. YES Clean, correct, or change.
4 Fusing Motor turns when the Start key is
pressed. NO Correct drive coupling.
Change motor or Master
Board.
Step Check Result Action
1 Exit Roller is dirty or scratched. YES Clean or change.
2 I/O check for Paper Exit Sensor: the voltage
across PJ9A-3A on Master Board and GND is
DC0V when the sensor is unblocked and DC5V
when the sensor is blocked. YES Change Master Board.
NO Correct actuator.
Change sensor.
3 Fusing Motor turns when the Start key is
pressed. NO Correct drive coupling.
Change motor or Master
Board.
M2
PJ109
4
3
2
1
PJ9
PC9
3
2
1 11
10 1
2
9 3
CN30
1 11
SL3
1
2 1
2
CN203
7
6 1
2
1 7
CN22
PWB-A
PJ7A-2A(M2 ON)
PJ7A-1A(M2 LOCK)
PJ9A-1A(DC5V)
PJ9A-2A(GND)
PJ9A-3A(PC9 ON)
PJ9A-1B(DC24V)
PJ9A-2B(SL3 ON)
4002C04TAA