Brother DCP-7030 Service Manual page 38

■ Error code AF
Scan Unable AF
Remove the original document. Turn the power off, then on again.
FB unit home position failure
Step
1 FB unit failure
2 Main PCB failure
■ Error code B0
Scanner Error
Harness for scanning is not connected correctly.
* This error is indicated on the LCD in the maintenance mode.
Step
Scanner harness not connected
1
correctly.
2 Scanner harness broken
3 Main PCB failure
■ Error code B7
Scanner Error
Detection error of scanner (Scanning reference voltage adjustment malfunction.)
* This error is indicated on the LCD in the maintenance mode.
Step
1 FB unit failure
2 Main PCB failure
■ Error code B9
Scanner Error
Scanning light adjustment error is detected.
* This error is indicated on the LCD in the maintenance mode.
Step
1 FB unit failure
2 Main PCB failure
Cause
Cause
Cause
Cause
1-20
Remedy
Replace the FB unit.
Replace the main PCB ASSY.
Remedy
Reconnect the scanner harness correctly.
Replace the FB unit.
Replace the main PCB ASSY.
Remedy
Replace the FB unit.
Replace the main PCB ASSY.
Remedy
Replace the FB unit.
Replace the main PCB ASSY.
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