Brother HL-L5000D Service Manual page 123

 Paper jams in the duplex tray
<User Check>
• Flip over the paper in each paper tray or rotate the paper 180°.
• Check that the thickness of the paper is 60 to 105 g/m
• Flip through the paper and reset it in each paper tray.
• Use A4 or Letter paper (specified by the manufacturer).
Step
Foreign object in the duplex
1
paper feeding system
2 Fuser cover attachment failure
3 Back cover failure
4 Duplex tray failure
Damaged gears in the duplex
5
paper feeding system
6 Main PCB failure
 Paper jams in MX
<User Check>
• Flip over the paper in each paper tray or rotate the paper 180°.
• Check that the thickness of the paper is 60 to 105 g/m
• Flip through the paper and reset it in each paper tray.
• Close the MX back cover correctly.
Step
Foreign object in the MX feeding
1
system
MX switching flapper
2
attachment failure
Connection failure of the MX
3
jam lower sensor harness
Connection failure of the MX
4
jam upper sensor harness
Connection failure of the MX bin
5
stack sensor PCB harness
Connection failure of the MX
6
relay PCB harness
7 MX back cover failure
8 MX back cover sensor failure
An MX bin stack sensor failure
9
10 MX motor failure
11 MX relay PCB failure
12 MX control PCB failure
13 Damaged gears inside the MX
14 Main PCB failure
Cause
Remove the foreign object.
Reattach the fuser cover.
Replace the back cover.
Replace the duplex tray.
Replace the main frame L ASSY.
Replace the main PCB ASSY.
Cause
Remove the foreign object.
Reattach the MX switching flapper.
Reconnect the MX jam lower sensor harness.
Reconnect the MX jam upper sensor harness.
Reconnect the appropriate MX bin stack sensor
PCB harness.
Reconnect the MX relay PCB harness.
Replace the MX back cover.
Replace the MX back cover sensor ASSY.
Replace the appropriate MX bin stack sensor
PCB ASSY.
Replace the MX motor.
Replace the MX relay PCB ASSY.
Replace the MX control PCB ASSY.
Replace the MX.
Replace the main PCB ASSY.
2-97
2
for the duplex tray.
Remedy
2
.
Remedy
Confidential