Canon imageRUNNER ADVANCE 4551i Service Manual page 517

805-0003-05
Detection Description
Remedy
806-0000-05
Detection Description
Remedy
806-0001-05
Detection Description
Remedy
Unstable rotation of the Exhaust Fan (Front) (FM4)
When lock signal failed to be detected for 15 sec while the Exhaust Fan (Front) (FM4) is driven.
* The same condition is detected after the error retry is performed.
[Related parts]
- Harness connecting from the DC Controller PCB (UN2/J335) to the Exhaust Fan (Front) (FM4/
J2009)
- Exhaust Fan (Front) (FM4)
- DC Controller PCB (UN2)
[Remedy]
1.Check/replace the related harness/cable, connector and parts.
2.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
Failure of the Main Body Cooling Fan (FM6)
When lock signal is detected for 5 sec while the Main Body Cooling Fan (FM6) is stopped.
*The same condition is detected after the error retry is performed.
[Related parts]
- Harness connecting from the DC Controller PCB (UN2/J337) to the Main Body Cooling Fan (FM6/
J441)
- Main Body Cooling Fan (FM6)
- DC Controller PCB (UN2)
[Remedy]
1.Check/replace the related harness/cable, connector and parts.
2.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
Unstable rotation of the Main Body Cooling Fan (FM6)
When lock signal failed to be detected for 15 sec while the Main Body Cooling Fan (FM6) is driven.
* The same condition is detected after the error retry is performed.
[Related parts]
- Harness connecting from the DC Controller PCB (UN2/J337) to the Main Body Cooling Fan (FM6/
J441)
- Main Body Cooling Fan (FM6)
- DC Controller PCB (UN2)
[Remedy]
1.Check/replace the related harness/cable, connector and parts.
2.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
504
7. Error/Jam/Alarm