Canon imageRUNNER ADVANCE 4551i Service Manual page 404

196-0000-05
Detection Description
Remedy
197-0000-05
Detection Description
Remedy
197-0001-05
Detection Description
Remedy
Error in EEPROM access
20 retries failed after error occurred during communication with EEPROM.
* Error occurs after the delivery if a paper in passage exists.
[Related parts]
- DC Controller PCB (UN2)
[Remedy]
1.Replace the DC Controller PCB.
[Reference]
Before replacing the DC Controller PCB, back up the service mode data and restore the backup
data after the replacement so the data may be able to be protected.
- Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMBUP
- Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES
Error in communication of Laser Driver PCB Communication time out error between DC
Controller PCB and Main Controller PCB 2
Communication error with image PCB (For factory)
Communication time out error between DC Controller PCB and Main Controller PCB 2
[Related parts]
- Harness connecting from the DC Controller PCB (UN2/J324,J9324) to the Laser Scanner Unit
(J745/J744/J9744/J602/J9602)
- Harness connecting from the Main Controller PCB 2 (UN14/J7201) to the Laser Scanner Unit
(J601)
- Laser Scanner Unit
- Main Controller PCB 2 (UN14)
- DC Controller PCB (UN2)
[Remedy]
1.Check/replace the related harness/cable, connector and parts.
2.Replace the Laser Scanner Unit.
3.Replace the Main Controller PCB 2.
4.Replace the DC Controller PCB.
[Reference]
Before replacing the DC Controller PCB, back up the service mode data and restore the backup
data after the replacement so the data may be able to be protected.
- Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMBUP
- Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES
Error in communication of Laser Driver PCB
Communication error with image PCB for factory (Serial communication error)
[Related parts]
- Harness connecting from the DC Controller PCB (UN2/J324,J9324) to the Laser Scanner Unit
(J745/J744/J9744/J602/J9602)
- Laser Scanner Unit
- DC Controller PCB (UN2)
[Remedy]
1.Check/replace the related harness/cable, connector and parts.
2.Replace the Laser Scanner Unit.
3.Replace the DC Controller PCB.
[Reference]
Before replacing the DC Controller PCB, back up the service mode data and restore the backup
data after the replacement so the data may be able to be protected.
- Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMBUP
- Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES
391
7. Error/Jam/Alarm