Brother DCP-9045CDN Service Manual page 49

Error code B2
SCANNER ERROR
Gain control data level error for CCD unit scanning.
* This error is indicated on the LCD in the maintenance mode.
Step
1 CCD unit failure
2 Main PCB failure
Error code B3
SCANNER ERROR
Detection error of the scanning area on the left end
* This error is indicated on the LCD in the maintenance mode.
Step
1 CCD unit failure
2 Main PCB failure
Error code B4
SCANNER ERROR
Detection error of the scanning area on the right end
* This error is indicated on the LCD in the maintenance mode.
Step
1 CCD unit failure
2 Main PCB failure
Cause
Replace the CCD unit.
Replace the main PCB ASSY.
Cause
Replace the CCD unit.
Replace the main PCB ASSY.
Cause
Replace the CCD unit.
Replace the main PCB ASSY.
1-30
Remedy
Remedy
Remedy
Confidential