Brother DCP-7080 Service Manual page 80

 Error code 7100
Jam Rear
Open the Back Cover and remove the jammed paper, then press Start.
The eject sensor remains ON (paper pass detected) even after the registration rear sensor
detected the end of paper pass.
<User Check>
• Remove the jammed paper.
• Check if the back cover is open during duplex printing.
Step
Foreign object in the rear of the
1
machine
Eject actuator caught in sections
2
of the machine
Fuser cover attachment failure
3
Eject sensor failure
4
Fuser unit failure
5
Damaged gears in the feeding
6
system
Main PCB failure
7
 Error code 7300
Jam Tray
Remove the jammed paper from Tray.
When printing from the paper tray, the registration front sensor does not detect paper pass
within the specified time after the paper feed sensor detected paper pass.
<User Check>
• Remove the jammed paper.
• Close the paper tray correctly.
Step
Foreign object in the front
1
section of the paper tray
Paper dust cleaning roller
2
attachment failure
Connection failure of the registration
3
front/rear sensor PCB harness
Connection failure of the HVPS flat
4
cable
Registration front actuator
5 coming off or caught in some
sections of the machine
HVPS flat cable breakage
6
Registration front sensor failure Replace the registration front/rear actuator
7
High-voltage power supply PCB
8
failure
Damaged gears in the feeding
9
system
Main PCB failure
10
Cause
Remove the foreign object.
Reattach the eject actuator.
Reattach the fuser cover.
Replace the eject sensor PCB ASSY.
Replace the fuser unit.
Replace the main frame L ASSY.
Replace the main PCB ASSY.
Cause
Remove the foreign object.
Reattach the paper dust cleaning roller.
Reconnect the registration front/rear sensor
PCB harness.
Reconnect the HVPS flat cable.
Reattach the registration front actuator.
Replace the HVPS flat cable.
holder ASSY.
Replace the high-voltage power supply PCB
ASSY.
Replace the main frame L ASSY.
Replace the main PCB ASSY.
2-45
Remedy
Remedy
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