Brother HL-L5000D Service Manual page 83

 Error code 7301
When printing from the paper tray 1, the T1 paper feed sensor does not detect paper pass
within the specified time while the T1 paper empty sensor detects some paper set.
<User Check>
• Remove the jammed paper.
• Add the paper properly using the paper tray 1 paper guide.
Step
1 Foreign object in the front of the machine Remove the foreign object.
T1 paper pick up roller holder
2
attachment failure
T1 paper feed actuator
3
attachment failure
Connection failure of the T1
4
pickup clutch harness
Connection failure of the T1
5
paper feed sensor harness
Connection failure of the HVPS
6
flat cable
7 PF kit 1 failure
8 T1 pickup clutch failure
T1 paper feed sensor PCB
9
failure
T1 paper empty sensor PCB
10
failure
Damaged gears in the paper
11
feeding system
High-voltage power supply PCB
12
failure
13 Main PCB failure
 Error code 7302
When printing from the paper tray 1, the registration front sensor does not detect paper pass
within the specified time after the T1 paper feed sensor detected paper pass.
<User Check>
• Remove the jammed paper.
• Add the paper properly using the paper tray 1 paper guide.
Step
1 Foreign object in the front of the machine Remove the foreign object.
Registration front actuator
2
attachment failure
Connection failure of the
3 registration front/rear sensor
harness
Registration front/rear sensor
4
PCB failure
High-voltage power supply PCB
5
failure
Damaged gears in the paper
6
feeding system
7 Main PCB failure
Cause
Reattach the T1 paper pick up roller holder.
Reattach the T1 paper feed actuator.
Reattach the T1 pickup clutch harness.
Reconnect the T1 paper feed sensor harness.
Reconnect the HVPS flat cable.
Replace the PF kit 1.
Replace the T1 pickup clutch.
Replace the T1 paper feed sensor PCB ASSY.
Replace the T1 paper empty sensor PCB
ASSY.
Replace the main frame L ASSY.
Replace the high-voltage power supply PCB
ASSY.
Replace the main PCB ASSY.
Cause
Reattach the registration front actuator.
Reconnect the registration front/rear sensor
harness.
Replace the registration front/rear sensor PCB
ASSY.
Replace the high-voltage power supply PCB
ASSY.
Replace the main frame L ASSY.
Replace the main PCB ASSY.
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Remedy
Remedy
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