Canon imageRUNNER ADVANCE C350 series Service Manual page 628

Error Detail
Location Item
code Code
E012 0001 05 Title CL Drum Motor error
Detection It did not become the specified speed for 500 consecutive msec
description although 1000 msec have passed from the startup of the CL
Drum Motor in the Main Drive Unit. (The detection timing varies
depending on the paper feed conditions.)
7
Error•Jam•Alarm > Error Code > Error Code Details
Description
7 Error•Jam•Alarm > Error Code > Error Code Details
Error Detail
Location Item
code Code
Remedy [Related parts]
- Main Drive Unit (Unit of replacement: MAIN DRIVE
ASSEMBLY)
- Harness between the CL Drum Motor (M01/J5701) and the DC
Controller PCB (UN04/J140) (Unit of replacement: MAIN DRIVE
ASSEMBLY)
- Fuse in the Low-voltage Power Supply PCB (UN01/FU14) (Unit
of replacement: POWER SUPPLY ASSEMBLY)
- CL Drum Motor (M01) (Unit of replacement: MOTOR, DC)
- DC Controller PCB (UN04) (Unit of replacement: DC
CONTROLLER PCB ASSEMBLY)
- Low-voltage Power Supply PCB (UN01) (Unit of replacement:
POWER SUPPLY ASSEMBLY)
[Points to note at work] When checking the harness/cable or
connector, perform the following work.
1. Disconnect and then connect the connector to check that
there is no bent pin and cable disconnection.
2. Visually check that the harness is not caught or open circuit.
3. If there is any error, replace the corresponding harness/cable.
[Remedy] It is highly possible that the CL Drum Motor is not
rotating due to overload or an electrical trouble. 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 CL
Drum 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 power is flowing to it (the measurement value is less than
1 ohm),
1. Replace the CL Drum Motor.
2. Replace the DC Controller PCB.
b. If the power is not flowing to it (the measurement value is 1
ohm or higher), 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
7-14
Description
7-14