Brother DCP-9010CN Service Manual page 135

■ Error code A4
Cover is Open
Close the ADF cover, then press Stop Key.
The ADF cover open sensor is OFF.
<User Check>
- Close the ADF cover.
Step
1 ADF cover open sensor actuator
catching on some position.
2 Harness connection failure of
ADF sensor PCB
3 ADF cover is changed in shape
or cracked.
4 ADF sensor PCB failure
5 Main PCB failure
■ Error code A5
Scan Unable A5
Remove the original document. Turn the power off, then on again.
Scanning failure upon FAX transmission (Warning at the first occurrence)
<User Check>
- Turn the power switch off and on. Then, try scanning again.
■ Error code A6
Scan Unable A6
See Troubleshooting and routine maintenance chapter in User's Guide.
Scanning failure upon FAX transmission (After A5 occurs, the same symptom occurs again
even though the power is turned OFF and ON.)
Step
1 Document scanner unit failure
2 Main PCB failure
Cause
Cause
3-43
Remedy
Correct catching of the ADF cover open
sensor actuator.
Check the harness connection of the ADF
sensor PCB and reconnect it.
Replace the ADF cover ASSY.
Replace the ADF sensor PCB ASSY.
Replace the main PCB ASSY.
Remedy
Replace the document scanner unit.
Replace the main PCB ASSY.
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