کانون Canon MF4270
E739-0000 Erroneous communication between controller and network board
The installed network board is incompatible. – Check the connectors of the image processor PCB and LAN PCB for normal connection. – Replace the LAN PCB. – Replace the image processor PCB.
E805-0000 Fan failure
The fan is faulty. – Check the fan connector. – Replace the fan. – Replace the DC controller PCB.
E808-0000 Fixing drive circuit failure
– The heater does not turn on.
– A fixing drive motor failure was detected. – Check the connector of the fixing film unit. – Replace the fixing film unit. – Replace the fixing drive motor. – Replace the DC controller PCB. – Replace the power supply PCB.
