Canon imageRUNNER ADVANCE C3330 Series Service Manual page 542

021-0001-05
Detection Description
Remedy
021-0002-05
Detection Description
Remedy
Developing Motor error
It did not become the specified speed for 0.5 consecutive sec although 0.8 sec have passed from
the startup of the Developing Motor.
[Related parts]
- Harness between the Developing Motor (M10/J1190) and the DC Controller PCB (UN04/J129)
(Unit of replacement: CABLE, MAIN DRIVE)
- Main Drive Unit (Unit of replacement: MAIN DRIVE ASSEMBLY)
- Fuse in the Low Voltage Power Supply PCB (UN01) (Unit of replacement: POWER SUPPLY
ASSEMBLY)
- Developing Motor (M10)
- DC Controller PCB (UN04) (Unit of replacement: DC CONTROLLER PCB ASSEMBLY)
[Remedy] Perform the following in the order while checking whether the error is cleared.
1. Check whether the gears of the Main Drive Unit can be rotated by hand.
a. If they cannot be rotated, replace the Main Drive Unit.
b. If they can be rotated, check the harness between the Developing Motor and the DC Controller
PCB.
2. Measure the both ends of the fuse in the Low Voltage Power Supply PCB using a tester.
a. If the measurement value is less than 1 ohm (conduction state),
1. Replace the Developing Motor.
2. Replace the DC Controller PCB.
b. If the measurement value is 1 ohm or higher (non conduction state), replace the Low Voltage
Power Supply PCB.
[Reference] Before replacing the DC Controller PCB, back up the service mode data (approx. 2
min) and restore the backup data after the replacement so the data may be able to be protected.
- Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMBUP
- Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES
Developing Motor error
The specified speed could not be maintained for 0.5 consecutive sec although it became the
specified speed at least once from the startup of the Developing Motor.
[Related parts]
- Harness between the Developing Motor (M10/J1190) and the DC Controller PCB (UN04/J129)
(Unit of replacement: CABLE, MAIN DRIVE)
- Main Drive Unit (Unit of replacement: MAIN DRIVE ASSEMBLY)
- Fuse in the Low Voltage Power Supply PCB (UN01) (Unit of replacement: POWER SUPPLY
ASSEMBLY)
- Developing Motor (M10)
- DC Controller PCB (UN04) (Unit of replacement: DC CONTROLLER PCB ASSEMBLY)
[Remedy] Perform the following in the order while checking whether the error is cleared.
1. Check whether the gears of the Main Drive Unit can be rotated by hand.
a. If they cannot be rotated, replace the Main Drive Unit.
b. If they can be rotated, check the harness between the Developing Motor and the DC Controller
PCB.
2. Measure the both ends of the fuse in the Low Voltage Power Supply PCB using a tester.
a. If the measurement value is less than 1 ohm (conduction state),
1. Replace the Developing Motor.
2. Replace the DC Controller PCB.
b. If the measurement value is 1 ohm or higher (non conduction state), replace the Low Voltage
Power Supply PCB.
[Reference] Before replacing the DC Controller PCB, back up the service mode data (approx. 2
min) and restore the backup data after the replacement so the data may be able to be protected.
- Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMBUP
- Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES
530
7. Error/Jam/Alarm