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C. Troubleshooting
(1) Finisher/saddle unit
a. F1-03, Paddle Motor (FPM) Fault
Cause/Trouble section
Paddle home position sensor (FPDHPD)
Stack roller home position sensor
(FARHPD)
Wiring
Paddle, Swing guide assembly
Paddle motor (FPM), finisher controller
PCB
b. F1-06, Slide Staple Motor (FSM) Fault
Cause/Trouble section
staple shift home position sensor
(FSTHPD)
Wiring
Stapler unit
Slide slide motor (FSM), Finisher
controller PCB
c. F1-10, Staple Motor (FFSM) Fault
Cause/Trouble section
Staple drive home position sensor
(FSHPD)
Wiring
Stapler unit
Staple motor (FFSM), Finisher controller
PCB
d. F1-10, Staple Motor (FFSM) Fault
Cause/Trouble section
Bookbinding home position sensor
(FFHPD)
Wiring
Saddle unit
Staple motor (FFSM), Finisher controller
PCB
e. F1-10, Staple Motor (FFSM) Fault
Cause/Trouble section
Bookbinding lock sensor (FFE)
Finisher controller PCB, Saddle unit
Staple motor (FFSM), Finisher controller
PCB
MX-FNX2/AR-PN1/MX-RBX1 SELF DIAG MESSAGE AND TROUBLE CODE 9 – 4
Procedure
1
Check the paddle home position sensor (FPDHPD).
Is the sensor normal?
2
Check the stack roller home position sensor (FPDHPD).
Is the sensor normal?
3
Is the wiring between the finisher controller PCB and the
paddle motor (FPM) normal?
4
Try turning the paddle motor (FPM) clockwise and
counterclockwise by hands. Is there mechanical tapping in
the rotation of the paddle or the up/down movement of the
swing guide?
5
Try replacing the paddle motor (FPM). Is the problem
corrected?
Procedure
1
Check the staple shift home position sensor (FSTHPD).
Is the sensor normal?
2
Is the wiring between the finisher controller PCB and the
staple shift motor (FSM) normal?
3
Is there mechanical trapping in the stapler path?
4
Try replacing the staple shift motor (FSM).
Is the problem corrected?
Procedure
1
Check the staple drive home position sensor (FSHRD). Is
the sensor normal?
2
Is the wiring between the finisher controller PCB and the
staple motor (FFSM) normal?
3
Try turning the staple jam releasing dial.
Is there mechanical trapping?
4
Try replacing the staple motor (FFSM). Is the problem
corrected?
Procedure
1
Check the bookbinding home position sensor (FFHPD).
Is the sensor normal?
2
Is the wiring between the finisher controller PCB and the
staple motor (FFSM) normal?
3
Try turning the fold jam releasing dial.
Is there mechanical trapping?
4
Try replacing the staple motor (FFSM). Is the problem
corrected?
Procedure
1
Check the bookbinding lock sensor (FFE).
Is the sensor normal?
2
Does the staple motor (FFSM) operate at the appropriate
timing?
3
Try replacing the staple motor (FFSM). Is the problem
corrected?
Check
Check
Check
Check
Check
Result
Remedy
NO
Replace the sensor
NO
Replace the sensor.
NO
Correct the wiring.
YES
Correct the mechanical
mechanism.
YES
Replace the finisher controller
PCB.
Result
Remedy
NO
Replace the sensor.
NO
Correct the wiring.
YES
Correct the mechanical
system.
YES
End.
NO
Replace the finisher
controller PCB.
Result
Remedy
NO
Replace the sensor
NO
Correct the wiring.
YES
Correct the mechanical
system.
YES
End.
NO
Replace the finisher
controller PCB.
Result
Remedy
NO
Replace the sensor.
NO
Correct the wiring.
YES
Correct the mechanical
mechanism.
YES
End.
NO
Replace the finisher
controller PCB.
Result
Remedy
NO
Replace the sensor.
YES
Replace the finisher
controller PCB.
NO
Check the saddle unit drive
mechanism:
if faulty, correct it;
otherwise, go to step 3).
YES
End.
NO
Replace the finisher
controller PCB.
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