Canon ImageRunner iR8500 Series, Service Manual, Page: 816 / 1122

Chapter 16
16-20
0000 A communication fault exists between the
CPUs of the control panel PCB and the main
controller PCB.
- Replace the control panel PCB.
- Replace the main controller PCB.
E248 Backup (EEPROM) error
0001 The ID read into the EEPROM when the main
power switch has been turned on and the ID in
the ROM do not match.
- Check if the EEPROM is mounted properly.
- Execute the following in service mode to clear the
RAM. COPIER > FUNCTION > CLEAR > R-CON
- Replace the EEPROM.
- Replace the reader controller PCB.
0002 When data is written into EEPROM, the data
written and the data read do not match.
0003 When data is written, the ID in the EEPROM
and the ID in the ROM are found not to match.
E302 Shading error
0000 During shading operation, the reader controller
PCB fails to end shading processing.
- Check if the connecter (J1502, J1503) of the CCD PCB
is mounted properly.
- Check if the connecter (J1107, J1108) of the reader
control PCB is mounted properly.
- Replace the CCD PCB.
- Replace the reader controller PCB.
E315 There is an error in image data.
The reader controller PCB is faulty. The main controller PCB is faulty.
0000 During image rotation, the encoding/decoding
has a fault.
- Replace the reader controller PCB.
- Replace the main controller PCB.
E320 There is a time out error in the image reading processing.
0000 While an image is being read, the image read
end notice does not arrive at the reader
controller PCB within 60 sec from the CCD/
AP PCB.
- Check if the connecter (J1502, J1503) of the CCD PCB
is mounted properly.
- Check if the connecter (J1107, J1108) of the reader
control PCB is mounted properly.
- Replace the CCD PCB.
- Replace the reader controller PCB.
E412 The rotation of the ADF cooling fan is faulty.
0000 The lock signal arrives for 100 msec or more
although the cooling fan is being driven.
- Replace the ADF cooling fan.
- Replace the ADF controller PCB.
E421 Backup (EEPROM) error
0001 Backup data cannot be written to the
EEPROM or the data, if written, has an error.
- Check if the EEPROM is mounted properly.
- Execute the following in service mode to clear the
RAM. COPIER > FUNCTION > CLEAR > R-CON
- Replace the EEPROM.
- Replace the reader controller PCB.
E422 There is an error in the IPC communication.
0001 While the machine is in standby, the
communication with the host machine has
been interrupted for 5 secs or more. or, while
the machine is in operation, the
communication with the host machine has
been interrupted for 0.5 sec or more.
- Check the cable.
- Replace the reader controller PCB.
E420 The EEPROM is faulty. The ADF controller PCB is faulty.
0000 The backup data of the EEPROM cannot be
read when the connected device is tuned on.
Or, the data that has been read has a fault.
- Replace the ADF controller PCB.
E602 There is an error on the hard disk.
0001 An HDD detection error has occurred. The
HDD cannot be detected. The HDD does not
become ready. The HDD returns an error.
See the details under E602.
0002 There is no startup file. The program for the
main CPU does not exist on the HDD or in
BOOTDEV/BOOT, and so on.
See the details under E602.
0003 An HD write abort error has occurred. The
sectors for BOOTDEV on the HD cannot be
read.
See the details under E602.
0006 A subbootable that matches the PDL type does
not exit in BOOTDEV/BOOT.
See the details under E602.
0007 An ICC profile that matches the PDL type does
not exit in BOOTDEV/PDL.
See the details under E602.
01XX /DOSDEV is faulty. See the details under E602.
02XX /FSTDEV is faulty. See the details under E602.
03XX /DOSDEV2 is faulty. See the details under E602.
04XX /FSTPDEV is faulty. See the details under E602.
05XX /DOSDEV3 is faulty. See the details under E602.
06XX /PDLDEV is faulty. See the details under E602.
07XX /DOSDEV4 is faulty. See the details under E602.
08XX /BOOTDEV is faulty. See the details under E602.
Code Cause Remedy