Brother MFC-9320CW Service Manual page 117

■ Error code 84
Jam Rear
Open the Back Cover and remove the jammed paper, then press Start.
Paper jam at the back of the machine inside
(The eject front sensor sticks at ON after the registration rear actuator is turned OFF.)
Error code 88
Jam Inside
Open the Top Cover, pull out all 4 Drum Units completely and remove the
jammed paper.
Paper jam inside the machine
(The registration rear actuator sticks at ON, or the eject front sensor fails to be turned ON.)
<User Check>
- Check if the paper is jammed. If jammed, remove it.
Step
1 Harness connection failure of
registration front/rear sensor
PCB ASSY and eject front
sensor PCB ASSY
2 Registration rear actuator or
paper eject front actuator
catching on some position
3 Eject front sensor PCB failure
(Error code 84)
Registration front/rear sensor
PCB failure (Error code 88)
4 HVPS control PCB failure
5 Engine PCB failure
6 Main PCB failure
Cause
3-36
Remedy
Check the harness connections of the
registration front/rear sensor PCB ASSY
and eject front sensor PCB ASSY, and
reconnect them.
Correct catching of the registration rear
actuator or paper eject front actuator.
Check the sensor performance following
the procedure described in
32". If any problem occurs, replace the
eject front sensor PCB ASSY.
Check the sensor performance following
the procedure described in
32". If any problem occurs, replace the
registration front/rear sensor PCB ASSY.
Replace the HVPS control PCB ASSY.
Replace the engine PCB ASSY.
Replace the main PCB ASSY.
"Function code
"Function code
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