Brother DCP-9055CDN Service Manual page 119

■ Error code AE
Scanner Locked
Open the Document Cover and release scanner lock lever. Press Stop key.
The document scanner unit fails to detect the home position.
This error does not usually occur in the normal use. The conceivable causes are noise around
the installation site, fluctuation of the power supply voltage, and failures in the software.
<User Check>
- Turn OFF the power switch, and turn it ON again after a while.
Step
1 Main PCB failure
■ Error code AF
Scanner Unable AF
See Troubleshooting and routine maintenance chapter in User's Guide.
The white tape cannot be detected.
Step
1 Document scanner unit failure
2 Main PCB failure
■ Error code B0
Scanner Error
Scanning FFC connection failure.
* This error is indicated on the LCD in the maintenance mode.
Step
1 Incomplete insertion of the
second side scanning CIS
harness of the document
scanner unit
2 Incomplete insertion of the
harness of the document
scanner unit
3 Second side scanning CIS
harness of document scanner
unit failure
4 Second side scanning CIS failure
5 Document scanner unit failure
6 Main PCB failure
Cause
Cause
Cause
2-81
Remedy
Replace the main PCB ASSY.
Remedy
Replace the document scanner unit.
Replace the main PCB ASSY.
Remedy
Reinsert the second side scanning CIS
harness of the document scanner unit.
Reconnect the harness for the document
scanner unit correctly.
Replace the second side scanning CIS
harness.
Replace the second side scanning CIS.
Replace the document scanner unit.
Replace the main PCB ASSY.
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