Canon imageCLASS MF8450c, Service Manual

Page: 268 / 349

Chapter 14
14-7
T-14-5
Code Description Action
E202 Reader HP sensor fault
0001 Reader HP outward fault
The CCD unit moves backward, but does not move to the home position.
- Replace reader HP sensor.
- Replace reader motor sensor.
- Replace reader unit.
0002 Reader HP homeward fault
The CCD unit moves forward, but does not move to the home position.
E225 Error in light intensity of the lamp
0000 Decrease of light intensity of the lamp. Replace reader unit.
E248 EEPROM access error
0001 Error at EEPROM power-on
EEPROM data cannot be read at power-on.
Replace reader unit.
0002 Error in EEPROM writing
EEPROM writing cannot be performed.
0003 Error in EEPROM reading after writing
EEPROM reading cannot be performed after writing is performed.
0004 Error in EEPROM register writing
EEPROM register writing cannot be performed.
E351 Main controller PCB fault
0000 Description
Internal error of the main controller PCB
Cause
Main controller PCB fault.
- Check the connection of main controller PCB.
- Replace main controller PCB.
E719 Communication error of options
0000 Erroneous communication with card reader (serial communication)
- Disconnection from the card reader has been detected since communication started
after confirmation of normal connection to the card reader (after power-on).
- A serial communication error has occurred. (The serial communication error cannot
be recovered.)
- Check the connectors of the card reader and image processor
PCB.
- Replace the card reader for normal connection.
- Replace the image processor PCB.
0002 Erroneous communication with coin vendor (serial communication)
- Disconnection from the coin vendor has been detected since communication started
after confirmation of normal connection to the coin vendor (after power-on).
- A serial communication error has occurred. (The serial communication error cannot
be recovered.)
- Check the connection between the image processor PCB and
serial PCB.
- Check the connectors of the serial PCB and coin vendor for
normal connection.
- Replace the serial PCB.
- Check the coin vendor.
- Replace the image processor PCB.
E744 Language file/boot ROM/USB memory error
0001 Language file version error
The language file version does not match Bootable.
Download a language file of the correct version.
0002 Language file size error
The language file is longer than the permitted size.
Download a language file of the correct version.
0003 Language file version error
The language file version does not match Bootable.
Download a language file of the correct version.
0004 Language file read error
Reading of language file is invalid.
Download a language file of the correct version.
E804 Error in power supply fan
0000 Description
The fan lock detection signal is input for about 10 sec or longer continuously.
Cause
Power supply fault, DC controller PCB fault.
- Replace the power supply fan
- Replace the DC controller PCB
E805 Error in duplexing fan/CPU fan
0005 Description
The duplexing fan lock detection signal is input for about 10 sec or longer
continuously.
Cause
Duplexing fan fault, DC controller PCB fault.
- Replace the duplexing fan
- Replace the DC controller PCB
E840 Error in pressure release mechanism
0000 Description
Although passing 2.5 sec from the start of HP control, HP (pressure condition) cannot
be controlled.
Cause
Fixing drive assembly fault, fixing pressure release cam fault.
- Replace the fixing drive assembly
- Replace the fixing pressure release cam