Brother MFC-9840CDW All in One Printer User Manual


 
Confidential
1-22
Error code 84 (Jam Rear)
Jam Rear
Open the Back Cover and remove the jammed paper.
Paper jam rear side of the machine
Error code 88 (Jam Inside)
Jam Inside
Open the Front Cover, pull out the Drum Unit completely and remove
the jammed paper.
Paper jam inside the machine
User Check
- Check if the paper is jammed. If jammed, remove it.
Step Cause
Remedy
1 Harness connection failure of
registration front sensor PCB
ASSY, registration rear
sensor PCB ASSY or paper
eject sensor PCB ASSY
Check the harness connections of the registration
front sensor PCB ASSY, registration rear sensor
PCB ASSY and paper eject sensor PCB ASSY,
and reconnect them.
2 Registration front actuator,
registration rear actuator or
paper eject actuator not
operating smoothly or
catching in some position.
Correct smooth operation of the registration front
actuator, registration rear actuator or paper eject
actuator and ensure they are not catching in any
positions.
3a Paper eject sensor PCB
failure
Check the sensor performance following the
procedure described in “Maintenance mode 32”. If
any problem occurs, replace the fuser unit.
(MP/ T1) Check the sensor performance following
the procedure described in “Maintenance mode
32”. If any problem occurs, replace the front door
unit ASSY.
3b Registration front sensor PCB
failure (MP/ T1/ LT)
(LT) Check the sensor performance following the
procedure described in “Maintenance mode 32”. If
any problem occurs, replace the LT paper feed
frame unit.
3c Registration rear sensor PCB
failure
Check the sensor performance following the
procedure described in “Maintenance mode 32”. If any
problem occurs, replace the front door unit ASSY.
4 Engine PCB failure Replace the engine PCB ASSY.