Service manual

T- 3 6
4-2. Troubleshooting Procedures by Malfunction Code
(1) C0000: Fusing Motor’s failure to turn
C0010: PC Drum Drive Motor’s failure to turn
C0000
C0010
Relevant Electrical Parts
Fusing Motor (M2)
PC Drum Drive Motor (M21)
Master Board (PWB-A)
Step Check Result Action
1 Fusing Motor turns when the Start key is
pressed.
NO Correct drive coupling.
2 Fusing Motor rotation: the voltage across
PJ7A-1A on Master Board and GND is DC5V
(motor deenergized) and DC0V (motor ener-
gized) when the Start key is pressed.
NO Change Master Board.
3 Fusing Motor rotation: the voltage across
PJ7A-2A on Master Board and GND is DC5V
(motor deenergized) and DC0V (motor ener-
gized) when the Start key is pressed.
YES Change Master Board.
NO Change motor.
Step Check Result Action
1 PC Drum Drive Motor turns when the Start key
is pressed.
NO Correct drive coupling.
2 PC Drum Drive Motor rotation: the voltage
across PJ7A-3A on Master Board and GND is
DC5V (motor deenergized) and DC0V (motor
energized) when the Start key is pressed.
NO Change Master Board.
3 PC Drum Drive Motor rotation: the voltage
across PJ7A-4A on Master Board and GND is
DC5V (motor deenergized) and DC0V (motor
energized) when the Start key is pressed.
YES Change Master Board.
NO Change motor.
M21
PJ121
5
4
3
M2
PJ102
3
2
1
PJ7A-5A(M21 FR)
PJ7A-4A(M21 LOCK)
PJ7A-3A(M21 START)
PJ7A-2A(M2 LOCK)
PJ7A-1A(M2 START)
PWB-A
2
1
4
GND
DC24V
4002C08TAA