Canon LBP5050 Series Service Manual page 85

Code Detection details
0000 Description: Abnormal output from toner remaining detection sensor
(Yellow)
Cause: Memory controller PCB defect, DC controller PCB defect, toner
cartridge defect
0001 Description: Abnormal output from toner remaining detection sensor
(Magenta)
Cause: Memory controller PCB defect, DC controller PCB defect, toner
cartridge defect
0002 Description: Abnormal output from toner remaining detection sensor
(Cyan)
Cause: Memory controller PCB defect, DC controller PCB defect, toner
cartridge defect
0003 Description: Abnormal output from toner remaining detection sensor
(Black)
Cause: Memory controller PCB defect, DC controller PCB defect, toner
cartridge defect
E066 Environment sensor abnormality
Description: Environment sensor abnormality
Cause: Environment sensor defect, DC controller PCB defect
E100 ITB/TOP sensor failed
Description: ITB/TOP sensor failed.
Cause: ITB/TOP sensor defect, DC controller PCB defect
E100 Scanner unit, laser unit, BD abnormality
0000 Description: Yellow optical assembly failure.
Cause: Laser scanner defect, DC controller PCB defect
0001 Description: Magenta optical assembly failure.
Cause: Laser scanner defect, DC controller PCB defect
0002 Description: Cyan optical assembly failure.
Cause: Laser scanner defect, DC controller PCB defect
0003 Description: Black optical assembly failure.
Cause: Laser scanner defect, DC controller PCB defect
E110 BD correction control failure
Description: The machine does not change to the scanner ready status, after
starting BD control.
Cause: Laser scanner unit defect, DC controller PCB defect
E196 DCON ROM abnormality
DC controller PCB ROM update failed.
E197 Engine communication error
0000 Internal communication error
E198 DC controller memory failure
Description: DC controller memory failure.
Cause: DC controller PCB defect
E747 EEPROM error
Treatment
- Check the connector of the DC controller PCB.
- Replace toner cartridge
- Replace DC controller PCB
- Check the connector of the environment sensor, DC controller PCB.
- Replace environment sensor
- Replace DC controller PCB
- Check the connector of the ITB unit, DC controller PCB.
- Replace ITB unit
- Replace DC controller PCB
- Check the connector of the laser scanner unit, DC controller PCB.
- Replace laser scanner unit
- Replace DC controller PCB
- Replace the laser scanner unit
- Replace DC controller PCB
- Replace DC controller PCB
- Replace DC controller PCB
- Replace main controller PCB
- Replace DC controller PCB
Chapter 5
5-5