Brother HL-4570CDW - Page 123

2-92
Confidential
■ Paper jam in the back cover and paper eject section (Error code 84, etc.)
■ Paper jam during duplex printing (Error code 57, etc.)
<User Check>
- Use the A4 or letter size recording paper.
Step Cause Remedy
1
Foreign object around paper eject
ASSY
Remove the foreign object.
2 Coming off of back flapper ASSY Re-assemble the back flapper ASSY.
3 Paper eject actuator
malfunction
Re-assemble the paper eject actuator.
4 Harness connection failure of
paper eject motor
Check the harness connection of the
paper eject motor and reconnect it.
5 Paper eject sensor PCB ASSY
failure
Check the sensor performance following
the procedure described in “Function code
32”. If any problem occurs, replace the
fuser unit.
6 Paper eject motor failure Replace the paper eject motor.
7 Paper eject ASSY failure Replace the paper eject ASSY.
8 Engine PCB failure Replace the engine PCB ASSY.
9 Main PCB failure Replace the main PCB ASSY.
Step Cause Remedy
1 Foreign object around paper
eject ASSY
Remove the foreign object.
2 Foreign object around duplex
feed ASSY
Remove the foreign object.
3 Foreign object around duplex
tray
Remove the foreign object.
4 Paper eject actuator
malfunction
Re-assemble the paper eject actuator.
5 Coming off of back flapper ASSY Re-assemble the back flapper ASSY.
6 Harness connection failure of
paper eject motor
Check the harness connection of the
paper eject motor and reconnect it.
7 Duplex feed ASSY failure Replace the duplex feed ASSY.
8 Duplex tray failure Replace the duplex feed ASSY.
9 Paper eject motor failure Replace the paper eject motor.
10 Paper eject ASSY failure Replace the paper eject ASSY.
11 Engine PCB failure Replace the engine PCB ASSY.
12 Main PCB failure Replace the main PCB ASSY.