Brother MFC-9840CDW - Section II Fax

Confidential
1-30
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 Cause
Remedy
1 CCD unit failure Replace the CCD unit.
2 Main PCB failure Replace the main PCB ASSY.
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 Cause
Remedy
1 CCD unit failure Replace the CCD unit.
2 Main PCB failure Replace the main PCB ASSY.
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 Cause
Remedy
1 CCD unit failure Replace the CCD unit.
2 Main PCB failure Replace the main PCB ASSY.