Brother DCP-7080 Service Manual page 82

 Error code 8903
2-sided Disabled
Close the Back Cover of the machine.
The back cover/duplex tray sensor detected that the cover was open when duplex printing is
started. (Before registering printing data to engine)
Error code 8904
2-sided Disabled
Close the Back Cover of the machine.
The back cover/duplex tray sensor detected that the cover was open during duplex printing.
(After registering printing data to engine)
<User Check>
• Close the back cover correctly.
Step
Back cover/duplex tray sensor
1
attachment failure
Boss to push the back cover/
2
duplex tray sensor is broken.
Back cover/duplex tray sensor
3
failure
Main PCB failure
4
 Error code 8A01
Size Error DX
Specify the correct paper.
The registration rear sensor detected that the paper fed was smaller or larger than the
specified size in duplex printing mode.
<User Check>
• Use appropriate paper (Letter to Legal).
Step
Registration rear actuator
1 caught in some sections of the
machine
Registration rear sensor failure
2
Main PCB failure
3
Cause
Reattach the back cover/duplex tray sensor.
Replace the back cover.
Replace the eject sensor PCB ASSY.
Replace the main PCB ASSY.
Cause
Reattach the registration rear actuator.
Replace the registration front/rear actuator
holder ASSY.
Replace the main PCB ASSY.
2-47
Remedy
Remedy
Confidential