Brother MFC-7450

1-28
Confidential
4.3 Paper Jam
User Check
• Check if the paper is loaded into the ADF tray correctly.
• Check if do not use the crimpy or torn paper.
Step Cause Check
Result Remedy
1
Document rear
actuator not
operating
smoothly or
catching
Does document rear
actuator move
smoothly? No
Re-assemble the
document rear actuator.
2
Foreign object
around feed
roller / paper
eject roller
actuator
Is there a foreign object
around the feed roller /
paper eject roller
actuator?
Ye s
Remove the foreign object.
3
Pinch roller of
feed roller failure
Is pinch roller of feed
roller remove?
Ye s
Re-assemble the pinch
roller of the feed roller.
4
Pinch roller of
paper eject roller
failure
Is pinch roller of paper
eject roller remove? Yes
Re-assemble the pinch
roller of the paper eject
roller.
5
Pressure roller
film unstick
Does pressure roller film
unstick?
Ye s
Replace the pressure roller
film.
6
ADF sensor PCB Is the problem solved by
replacing the ADF
sensor PCB?
Ye s
Replace the ADF sensor
PCB.
7
ADF motor
failure
Is the problem solved by
replacing the ADF
motor?
Ye s
Replace the ADF motor.
8
Drive frame
ASSY failure
Is the problem solved by
replacing the drive
frame ASSY?
Ye s
Replace the drive frame
ASSY.
9
Main PCB failure Is the problem solved
after replacing the main
PCB ASSY?
Ye s
Replace the main PCB
ASSY.