Brother HL-L5000D Service Manual page 96

 Error code 7B05
The MX 4bin stack sensor does not detect paper pass within the specified time after the MX
jam upper sensor detected paper pass.
<User Check>
• Remove the jammed paper.
• Close the MX back cover correctly.
Step
Foreign object in the rear of the
1
machine
2 MX flapper 3 attachment failure Reattach the MX flapper 3.
MX 4bin stack actuator
3
attachment failure
Connection failure of the MX
4
4bin stack sensor harness
Connection failure of the MX
5
relay PCB harness
6 MX 4bin stack sensor failure
7 MX relay PCB failure
8 MX control PCB failure
9 Main PCB failure
 Error code 7F00
MX(2 or 4) bin sensor detected that the only one of the two removable plates is removed
from the MX.
<User Check>
• Remove or attach both of the two removable plates.
• Reattach the removable plates.
Step
Connection failure of the MX
2bin detection sensor harness
1
or MX 4bin detection sensor
harness
MX 2bin detection sensor or MX
2
4bin detection sensor failure
3 MX control PCB failure
4 Main PCB failure
Cause
Remove the foreign object.
Reattach the MX 4bin stack actuator.
Reconnect the MX 4bin stack sensor harness.
Reconnect the MX relay PCB harness.
Replace the MX 4bin stack sensor.
Replace the MX relay PCB ASSY.
Replace the MX control PCB ASSY.
Replace the main PCB ASSY.
Cause
Reconnect the MX 2bin detection sensor
harness or MX 4bin detection sensor harness.
Replace the MX 2bin detection sensor or MX
4bin detection sensor.
Replace the MX control PCB ASSY.
Replace the main PCB ASSY.
2-70
Remedy
Remedy
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