[Error Code] Canon IR7105 and Canon Advance 5051

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Re: Canon IR7105 and Canon Advance 5051

7105________
E804-0001
Description:
The rotation of the following is faulty: power supply cooling fan 1, power supply cooling fan 2, or controller cooling fan.
The fan stop signal has been detected for 5 sec or more after the power supply cooling fan 1 has gone on.
Remedy:
Disconnect and then connect J505 of the DC controller PCB.
Replace the power supply cooling fan 1.
or Replace the DC controller PCB.
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C5051______
E840-0000
Description:
Error in shutter for Fixing Edge Cooling Fan (if the HP failed to be detected when the error occurred).
Failed to detect that the fan shutter has moved to the specified position when moving the fan shutter from anywhere other than the HP.

Remedy:
1. Check the harness of the Shutter Motor (M27), the Shutter HP Sensor (PS31) and the Shutter Position Sensor (PS32) (to see if the harness is caught, disconnected or physically removed).
2. Replace the Pickup Feed Driver PCB (UN2).
3. Replace the Shutter Motor, the Shutter HP Sensor or the Shutter Position Sensor.