Canon imageCLASS MF4890dw Service Manual page 483

Code Detection description
When the same error repeatedly occurs after several
times of turning the power OFF/ON, execute the
following remedies.
(1) Check the connection of Flat Cable between Main
Light intensity of a lamp is
E225 0001
less or equal to the criteria
(2) Replace the Flat Cable between Main Controller
(3) Replace the Contact Sensor.
(4) Replace the Main Controller Board.
When the same error repeatedly occurs after several
times of turning the power OFF/ON, execute the
following remedies.
(1) Check the connection of Flat Cable between Main
Insufficient light intensity in
E301 0001
shading
(2) Replace the Flat Cable between Main Controller
(3) Replace the Contact Sensor.
(4) Replace the Main Controller Board.
When the same error repeatedly occurs after several
times of turning the power OFF/ON, execute the
following remedies.
(1) Check the connection of connectors between the
Communication error with
CCU/modem, or no FAX
E736 0000
board installed on FAX
(2) Replace the connectors between the Main Controller
model.
(3) Replace the FAX-NCU Board.
(4) Replace the Main Controller Board.
When the same error repeatedly occurs after several
Error detection on either times of turning the power OFF/ON, execute the
E740 0002 Network Board or Mac following remedies.
address (1) Check the connection of the network cable.
(2) Replace the Main Controller Board.
7
Error Codes > Error Codes
Remedy
Controller Board (J5) and Contact Sensor.
Board (J5) and Contact Sensor.
Controller Board (J5) and Contact Sensor.
Board (J5) and Contact Sensor.
Main Controller Board (J601, J602) and the FAX-
NCU Board (J1201, J1204).
Board (J601, J602) and the FAX-NCU Board (J1201,
J1204).
7 Error Codes > Error Codes
Code Detection description
When the same error repeatedly occurs after several
times of turning the power OFF/ON, execute the
0002 Language file error
following remedies.
Update the set of the Controller Firmware
When the same error repeatedly occurs after several
times of turning the power OFF/ON, execute the
Engine ID error (Invalid
following remedies.
4000 engine connection is
E744 (1) Check the Engine Controller Board.
detected)
(2) Update the Engine Firmware.
(3) Update the set of the Controller Firmware
When the same error repeatedly occurs after several
times of turning the power OFF/ON, execute the
Communication error with
6000 following remedies.
Wireless LAN board.
(1) Replace the Wireless LAN Board.
(4) Replace the Main Controller Board.
When the same error repeatedly occurs after several
times of turning the power OFF/ON, execute the
Fan Motor cannot rotate at
E806 0000 following remedies.
specified revolution speed.
(1) Replace the Main Fan Unit.
(2) Replace the Engine Controller Board.
7-4
Remedy
T-7-2
7-4