Paper Jam - Brother HL-4040CN Service Manual

3.3

Paper Jam

Paper jam in the paper tray and front cover
Step
1 Belt unit
malfunction
2 Registration front
actuator catching
on some position
3 T1 registration
front sensor
failure
Paper jam in the back cover and paper eject section
Step
1 Foreign object
around fuser unit
2 Paper eject ASSY
malfunction
3 Paper eject
actuator failure
Paper jam in the DX paper feeding section
User Check
- Use the letter size or longer paper.
- Use paper which has not curled.
- Do not use too thin paper.
- Check that the DX paper size (A4/Letter) switch lever of the DX feed ASSY is placed in the
correct position.
Step
1 Deformation of
paper guide DX
on the bottom of
the paper tray
2 DX feed ASSY
failure
Cause
Does the belt unit move
correctly?
Does the registration front
actuator move smoothly?
Does T1 registration front
sensor move smoothly?
(Check it following the
procedure described in
"Maintenance mode
Cause
Is there a foreign object
around the fuser unit?
Is each pinch roller of the
paper eject ASSY
attached to each paper
eject roller properly?
Does the paper eject
actuator move smoothly?
Is it damaged?
Cause
Is the paper guide DX
deformed?
Is the DX feed ASSY
deformed?
Do the rollers of the DX
feed ASSY move
correctly?
Check
Result
No
No
No
32".)
Check
Result
Yes
No
No
Check
Result
No
No
1-39
Remedy
Replace the belt unit.
Re-assemble the
registration front actuator.
Replace the front door
unit ASSY.
Remedy
Remove the foreign
object.
Replace the paper eject
ASSY.
Replace the fuser unit.
Remedy
Replace the paper tray.
Replace the DX feed
ASSY.
Confidential