Canon imageRUNNER ADVANCE DX C5870i Service Manual page 490

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8. Error/Jam/Alarm

E012-0101-05

Drum Motor startup error

Detection Description

Startup error of Drum Motor (YMC) was detected.

[Related parts]

- Harness connecting the Drum Driver PCB (UN54/J210) and CL Drum Motor (M1/J2100)

- Harness connecting the DC Power Supply PCB (UN3/J811) and Drum Driver PCB (UN54/J200)

- Harness connecting the Main Controller PCB (UN41/J73) and Drum Driver PCB (UN54/J212)

- DC Power Supply PCB (UN3) (Unit of replacement: POWER SUPPLY ASSEMBLY)

- Main Controller PCB (UN41)

- Drum Driver PCB (UN54)

- CL Drum Motor (M1)

- MAIN DRIVE GEAR BOX ASSEMBLY

- Drum Unit Y

- Drum Unit M

- Drum Unit C

Perform the following in the order while checking whether the error is cleared.

1. Check/Replace the disconnected connector or open circuit of the Harness between the Drum

Driver PCB (UN54/J211) and CL Drum Motor (M1/J2100).

2. Check/Replace the disconnected connector or open circuit of the Harness between the DC

Power Supply PCB (UN3/J811) and Drum Driver PCB (UN54/J200).

3. Check/Replace the disconnected connector or open circuit of the Harness between the Main

Controller PCB (UN41/J73) and Drum Driver PCB (UN54/J212).

4. Check/Replace the CL Drum Motor (M1).

5. Check/Replace the Drum Driver PCB (UN54)

6. Check the load of each of Drum Unit Y, Drum Unit M, and Drum Unit C.

6-1. Method for checking the load: Turn the Drum Cylinder of the Drum Unit in the rotation direction

of the machine. (The rotation direction is counterclockwise as seen from the coupling side. The

front and rear ends of cylinder surface can be touched by hands.)

6-2. When load weight exists: Replace the Drum Unit

6-3. When no load weight exists: Check/Replace the MAIN DRIVE GEAR BOX ASSEMBLY

7. Check/Replace the DC Power Supply PCB.

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