Sharp AR-F11 (serv.man8) Service Manual ▷ View online
8-36
CHAPTER 8 TROUBLESHOOTING
12. Faulty swing motor (related to PI18)
13. Faulty swing motor (related to MS3)
Checks
Turn the delivery motor in
reverse by hand. Does the
swing guide move up and
down?
reverse by hand. Does the
swing guide move up and
down?
Is the swing guide open
sensor normal?
sensor normal?
Does the swing motor rotate
in reverse at a specific
timing?
in reverse at a specific
timing?
Cause
Swinging mechanism
Swing guide open
sensor (PI18)
sensor (PI18)
Swing motor (M7)
Finisher controller PCB
Step
1
2
3
Yes/No
No
No
No
Yes
Action
Correct the swinging
mechanism.
mechanism.
Replace the sensor.
Replace the motor.
Replace the finisher
controller PCB.
controller PCB.
Checks
Check the safety range switch.
Is the switch normal?
Is the switch normal?
Is the safety range detection
switch pressed correctly?
switch pressed correctly?
Check the swing guide
closed detection switch 2. Is
the switch normal?
closed detection switch 2. Is
the switch normal?
Is the swing guide closed
detection switch 2 pressed
correctly?
detection switch 2 pressed
correctly?
Cause
Safety range switch
(MS3)
(MS3)
Swing guide closed
detection switch 2
(MS6)
detection switch 2
(MS6)
Finisher controller PCB
Step
1
2
3
4
Yes/No
No
No
No
No
Yes
Action
Replace the switch.
Correct mechanical
operation.
operation.
Replace the switch.
Correct mechanical
operation.
operation.
Replace the finisher
controller PCB.
controller PCB.
8-37
CHAPTER 8 TROUBLESHOOTING
14. Faulty swing motor (related to PI20)
15. Faulty tray 1 lift motor (related to PI8)
16. Faulty tray 2 lift motor (related to PI25)
Checks
Check the swing motor clock
sensor. Is the sensor normal?
sensor. Is the sensor normal?
Does the voltage of the
swing motor between J11-6
and -7 on the finisher
controller PCB reach 24 V at
a specific rotation timing?
swing motor between J11-6
and -7 on the finisher
controller PCB reach 24 V at
a specific rotation timing?
Cause
Swing motor clock
sensor (PI20)
sensor (PI20)
Finisher controller PCB
Step
1
2
Yes/No
No
No
Yes
Action
Replace the sensor.
Replace the finisher
controller PCB.
controller PCB.
Check the wiring
from the motor to the
finisher controller
PCB. If normal,
replace the motor.
from the motor to the
finisher controller
PCB. If normal,
replace the motor.
Checks
Check the tray 1 home
position sensor. Is it normal?
position sensor. Is it normal?
Check the tray 1 lift
mechanism. Is the
mechanism normal?
mechanism. Is the
mechanism normal?
Is the tray 1 lift motor supplied
with 24 VDC by the finisher
controller PCB as soon as the
tray is driven?
with 24 VDC by the finisher
controller PCB as soon as the
tray is driven?
Check the wiring from the
finisher controller PCB to
the tray 1 lift motor. Is the
wiring normal?
finisher controller PCB to
the tray 1 lift motor. Is the
wiring normal?
Cause
Tray 1 home position
sensor (PI8)
sensor (PI8)
Tray 1 lift mechanism
Finisher controller PCB
Wiring
Tray 1 lift motor (M5)
Step
1
2
3
4
Yes/No
No
No
No
No
Yes
Action
Replace the sensor.
Correct the
mechanism.
mechanism.
Replace the finisher
controller PCB.
controller PCB.
Correct the wiring.
Replace the tray 1 lift
motor.
motor.
Checks
Check the tray 2 lift
mechanism. Is the
mechanism normal?
mechanism. Is the
mechanism normal?
Is the tray 2 lift motor supplied
with 24 VDC by the finisher
controller PCB as soon as the
tray is driven?
with 24 VDC by the finisher
controller PCB as soon as the
tray is driven?
Check the wiring from the
finisher controller PCB to
the tray 2 lift motor. Is the
wiring normal?
finisher controller PCB to
the tray 2 lift motor. Is the
wiring normal?
Cause
Tray 2 lift mechanism
(PI25)
(PI25)
Finisher controller PCB
Wiring
Tray 2 lift motor (M10)
Step
1
2
3
Yes/No
No
No
No
Yes
Action
Correct the
mechanism.
mechanism.
Replace the finisher
controller PCB.
controller PCB.
Correct the wiring.
Replace the tray 2 lift
motor.
motor.
8-38
CHAPTER 8 TROUBLESHOOTING
17. Faulty tray 1 motor (related to PI9/PI19)
18. Faulty tray 2 motor (related to PI23/24)
Checks
Does the tray 1 move up/
down?
down?
Is the motor supplied with
power by the finisher
controller PCB as soon as
the tray 1 moves up/down?
power by the finisher
controller PCB as soon as
the tray 1 moves up/down?
Is there a fault in the tray 1
lift mechanism?
lift mechanism?
Is the tray 1 lift motor clock
sensor 1/2 normal?
sensor 1/2 normal?
Cause
___
Finisher controller PCB
Tray 1 lift mechanism
Tray 1 lift motor (M5)
Tray 1 lift motor clock
sensor 1/2 (PI9/19)
sensor 1/2 (PI9/19)
Finisher controller PCB
Step
1
2
3
4
Yes/No
No
Yes
Yes
No
Yes
No
No
Yes
Action
Go to step 2.
Go to step 4.
Go to step 3.
Replace the finisher
controller PCB.
controller PCB.
Correct the tray 1 lift
mechanism.
mechanism.
Replace the tray 1 lift
motor.
motor.
Replace the sensor
PCB.
PCB.
Replace the finisher
controller PCB.
controller PCB.
Checks
Does the tray 2 move up/
down?
down?
Is the motor supplied with
power by the finisher
controller PCB as soon as
the tray 2 moves up/down?
power by the finisher
controller PCB as soon as
the tray 2 moves up/down?
Is there a fault in the tray 2
lift mechanism?
lift mechanism?
Is the tray 2 lift motor clock
sensor 1/2 normal?
sensor 1/2 normal?
Cause
___
Finisher controller PCB
Tray 2 lift mechanism
Tray 2 lift motor (M10)
Tray 2 lift motor clock
sensor 1/2 (PI23/24)
sensor 1/2 (PI23/24)
Finisher controller PCB
Step
1
2
3
4
Yes/No
No
Yes
Yes
No
Yes
No
No
Yes
Action
Go to step 2.
Go to step 4.
Go to step 3.
Replace the finisher
controller PCB.
controller PCB.
Correct the tray 2 lift
mechanism.
mechanism.
Replace the tray 2 lift
motor.
motor.
Replace the sensor
PCB.
PCB.
Replace the finisher
controller PCB.
controller PCB.
8-39
CHAPTER 8 TROUBLESHOOTING
19. Faulty second feed motor (related to PI5)
20. Faulty second feed motor (related to MS4)
Checks
Does the second feed motor
in reverse at a specific
timing?
in reverse at a specific
timing?
Are the shutter and the
shutter upper/lower bar
engaged correctly?
shutter upper/lower bar
engaged correctly?
Turn the feed roller 2 in
reverse by hand. Does the
shutter upper/lower bar
move up/down?
reverse by hand. Does the
shutter upper/lower bar
move up/down?
Is the shutter open detection
sensor normal?
sensor normal?
Cause
Second feed motor
(M8)
(M8)
Shutter mechanism
Shutter open detection
sensor (PI5)
sensor (PI5)
Finisher controller PCB
Step
1
2
3
4
Yes/No
No
No
No
No
Yes
Action
Replace the second
feed motor or the
finisher controller
PCB.
feed motor or the
finisher controller
PCB.
Engage them
correctly.
correctly.
Correct mechanism
from the shutter upper/
lower bar to the gear of
the feed roller 2.
from the shutter upper/
lower bar to the gear of
the feed roller 2.
Replace the sensor.
Replace the finisher
controller PCB.
controller PCB.
Checks
Does the second feed motor
rotate in reverse at a specific
timing?
rotate in reverse at a specific
timing?
Are the shutter and the
shutter upper/lower bar
engaged correctly?
shutter upper/lower bar
engaged correctly?
Turn the feed roller 2 in
reverse by hand. Does the
shutter upper/lower bar
move up/down?
reverse by hand. Does the
shutter upper/lower bar
move up/down?
Is the shutter closed
detection switch normal?
detection switch normal?
Cause
Second feed motor
(M8)
(M8)
Shutter mechanism
Shutter closed detection
switch (MS4)
switch (MS4)
Finisher controller PCB
Step
1
2
3
4
Yes/No
No
No
No
No
Yes
Action
Replace the second
feed motor or the
finisher controller
PCB.
feed motor or the
finisher controller
PCB.
Engage them
correctly.
correctly.
Correct the
mechanism from the
shutter upper/lower
bar to the gear of the
feed roller 2.
mechanism from the
shutter upper/lower
bar to the gear of the
feed roller 2.
Replace the switch.
Replace the finisher
controller PCB.
controller PCB.
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