Brother MFC-9440CN - Fax Sending Procedures; How to Fax; Sending Fax from ADF; Sending Fax from Scanner Glass

Confidential
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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 Scanner unit failure Replace the FB 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 Scanner unit failure Replace the FB unit.
2 Main PCB failure Replace the main PCB ASSY.
Error code B5
SCANNER ERROR
Detection error of horizontal scanning edge reduction in scanning area setting
* This error is indicated on the LCD in the maintenance mode.
Error code B6
SCANNER ERROR
Detection error of horizontal scanning edge magnification in scanning area setting
* This error is indicated on the LCD in the maintenance mode.
Step Cause
Remedy
1 White tape dirty of FB unit Clean the white tape.
2 Scanner unit failure Replace the FB unit.
3 Main PCB failure Replace the main PCB ASSY.