Canon imageRUNNER ADVANCE 4551i Service Manual page 400

010-0002-05
Detection Description
Remedy
014-0001-05
Detection Description
Remedy
014-0002-05
Detection Description
Remedy
Unstable rotation of the Main Motor (M1)
During motor rotation, detection is executed every 100 msec; however, the drive signal is absent
5 times in sequence.
[Related parts]
- Harness connecting from the DC Controller PCB (UN2/J309) to the Main Motor (M1/J137)
- Main Motor (M1)
- 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 Fixing Motor (M2)
Detection is executed every 100 msec after the start of motor rotation; however, the drive detection
signal is absent for 2 sec.
[Related parts]
- Harness connecting from the DC Controller PCB (UN2/J331) to the Fixing Motor (M2/J730)
- Fixing Motor (M2)
- 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 Fixing Motor (M2)
During motor rotation, detection is executed every 100 msec; however, the drive signal is absent
5 times in sequence.
[Related parts]
- Harness connecting from the DC Controller PCB (UN2/J331) to the Fixing Motor (M2/J730)
- Fixing Motor (M2)
- 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
387
7. Error/Jam/Alarm