AR-F12 (serv.man8). Maintenance, inspection and troubleshooting - Sharp Copying Equipment Service Manual (repair manual). Page 53

Read Sharp AR-F12 (serv.man8) Service Manual online

8-48
CHAPTER 8   TROUBLESHOOTING
Checks
Check the horizontal
registration home position
sensor. Is the sensor normal?
Is the wiring between the
horizontal registration home
position sensor and the
finisher controller PCB
normal?
Is there any problem with
the horizontal registration
mechanism?
Replace the punch driver
PCB. Is the problem
corrected?
Cause
Horizontal registration
home position sensor
(PI1P)
Wiring
Horizontal registration
mechanism
Horizontal registration
motor (M2P)
Punch driver PCB
Step
1
2
3
4
Yes/No
No
No
Yes
No
No
Yes
Action
Replace the sensor.
Correct the wiring.
Correct the horizontal
registration
mechanism.
Replace the horizontal
registration motor.
Replace the finisher
controller PCB.
End.
Checks
Check the punch motor clock
sensor. Is the sensor normal?
Check the punch home
position sensor. Is the sensor
normal?
Is the wiring between the
punch home position sensor
and the finisher controller
PCB normal?
Is there any trouble with the
punch mechanism?
Replace the punch driver
PCB. Is the problem
corrected?
Cause
Punch motor clock
sensor (PI2P)
Punch home position
sensor (PI3P)
Wiring
Punch mechanism
Punch motor (M1P)
Punch driver PCB
Step
1
2
3
4
5
Yes/No
No
No
No
Yes
No
No
Yes
Action
Replace the sensor.
Replace the sensor.
Correct the wiring.
Correct the punch
mechanism.
Replace the punch
motor.
Replace the finisher
controller PCB.
End.
C.
Puncher Unit (option)
1.
Faulty punch motor
2.
Faulty horizontal registration motor

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