Sharp MX-6500N / MX-7500N (serv.man21) Service Manual ▷ View online
MX-7500N TROUBLESHOOTING 7 – 21
F0-18
Finisher rear edge hold motor section
abnormality (FNM118)
abnormality (FNM118)
F0-19
Finisher paper alignment motor F
section abnormality (FNM108)
section abnormality (FNM108)
F0-20
Finisher paper alignment motor R
section abnormality (FNM109)
section abnormality (FNM109)
F0-23
Shutter trouble (FNCL102)
F0-25
Finisher paper transport roller lift
motor section abnormality (FNM119)
motor section abnormality (FNM119)
F0-28
Finisher paper alignment roller lift
motor section abnormality (FNM112)
motor section abnormality (FNM112)
F0-29
Finisher PWB cooling fan abnormality
(FNFAN102)
(FNFAN102)
F0-30
Communication trouble between the
finisher and the saddle
finisher and the saddle
Trouble content
The operation of the paper hold arm in the staple
compiler of the finisher is abnormal.
compiler of the finisher is abnormal.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the paper hold
motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Trouble content
The operation of the front alignment plate in the staple
compiler of the finisher is abnormal.
compiler of the finisher is abnormal.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the paper
alignment motor F.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
alignment motor F.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Trouble content
The operation of the rear alignment plate in the staple
compiler of the finisher.
compiler of the finisher.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the paper
alignment motor R.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
alignment motor R.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Trouble content
The operation of the shutter open/close in the paper
exit section.
exit section.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the shutter
clutch.
Check connection from the control PWB to the clutch
and the sensor.
Replace the control PWB, the clutch, and the sensor
part.
clutch.
Check connection from the control PWB to the clutch
and the sensor.
Replace the control PWB, the clutch, and the sensor
part.
Trouble content
The separation operation of the transport roller in the
buffer section of the finisher or the path select
operation of the flapper is abnormal.
buffer section of the finisher or the path select
operation of the flapper is abnormal.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the paper
transport roller lift motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
transport roller lift motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Trouble content
The lifting operation of the paper takeup roller arm in
the staple compiler of the finisher is abnormal.
the staple compiler of the finisher is abnormal.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the paper
alignment roller lift motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
alignment roller lift motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Trouble content
The operation of the PWB cooling fan in the finisher is
abnormal.
abnormal.
Detail
PCU
Cause
Motor lock, motor harness short/open, control PWB
trouble, disconnection of harness or connector.
trouble, disconnection of harness or connector.
Check & Remedy
Use SIM3-3 to check the operation of the control PWB
cooling fan.
Check connection from the control PWB to the motor.
Replace the control PWB and the fan motor.
cooling fan.
Check connection from the control PWB to the motor.
Replace the control PWB and the fan motor.
Trouble content
Communication trouble between the finisher and the
saddle
No response for the command send from the saddle
unit
saddle
No response for the command send from the saddle
unit
Detail
PCU
Cause
Noise on the communication line, control PWB
trouble, disconnection of connector or harness.
trouble, disconnection of connector or harness.
Check & Remedy
Turn OFF/ON the power. Check the connector
between the finisher and the saddle. Replace the
control PWB of the saddle unit.
between the finisher and the saddle. Replace the
control PWB of the saddle unit.
MX-7500N TROUBLESHOOTING 7 – 22
F0-31
Finisher saddle folding motor section
abnormality (FSM206)
abnormality (FSM206)
F0-32
Finisher relay unit transport motor
section abnormality (PIM301)
section abnormality (PIM301)
F0-33
Finisher punch shift motor section
abnormality (FCM101)
abnormality (FCM101)
F0-34
Finisher punch motor section
abnormality (FCM102)
abnormality (FCM102)
F0-37
Finisher backup RAM trouble
F0-40
Communication trouble between the
finisher saddle and the trimmer
finisher saddle and the trimmer
F0-41
Finisher saddle lead edge stopper
motor section abnormality (FSM203)
motor section abnormality (FSM203)
F0-42
Finisher saddle folding roller guide
motor section abnormality (FSM204)
motor section abnormality (FSM204)
F0-43
Finisher saddle alignment motor
section abnormality (FSM212)
section abnormality (FSM212)
Trouble content
Saddle unit folding roller operation abnormality
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the saddle
paper folding motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
paper folding motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Trouble content
The operation of the paper transport in the paper relay
unit of the finisher is abnormal.
unit of the finisher is abnormal.
Detail
PCU
Cause
Motor lock, motor harness short/open, control PWB
trouble, disconnection of harness or connector.
trouble, disconnection of harness or connector.
Check & Remedy
Use SIM3-3 to check the operation of the relay paper
transport motor.
Check connection from the control PWB to the motor.
Turn OFF/ON the power. Replace the control PWB
and the motor.
transport motor.
Check connection from the control PWB to the motor.
Turn OFF/ON the power. Replace the control PWB
and the motor.
Trouble content
The horizontal registration shift operation of the punch
unit in the finisher is abnormal.
unit in the finisher is abnormal.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the punch shift
motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Trouble content
The punching operation of the punch unit in the
finisher is abnormal.
finisher is abnormal.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the punch
motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Trouble content
Data cannot be written into the backup RAM. The red
values are abnormal.
values are abnormal.
Detail
PCU
Cause
Finisher control PWB trouble, EEPROM chip
breakdown.
breakdown.
Check & Remedy
Replace the finisher control PWB.
Trouble content
Communication trouble between the saddle unit and
the trimmer unit.
When a command is sent from the saddle unit to the
trimmer unit, no response is made by the trimmer unit.
the trimmer unit.
When a command is sent from the saddle unit to the
trimmer unit, no response is made by the trimmer unit.
Detail
PCU
Cause
Noise on the communication line, control PWB
trouble, disconnection of connector or harness.
trouble, disconnection of connector or harness.
Check & Remedy
Turn OFF/ON the power. Check the connector
between the saddle and the trimmer unit. Replace the
control PWB of the saddle unit. Replace the control
PWB of the trimmer unit.
between the saddle and the trimmer unit. Replace the
control PWB of the saddle unit. Replace the control
PWB of the trimmer unit.
Trouble content
The operation of the finisher saddle unit lead edge
stopper motor is abnormal.
stopper motor is abnormal.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the saddle lead
edge stopper motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
edge stopper motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Trouble content
The operation of the saddle unit folding roller guide is
abnormal.
abnormal.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the saddle
folding roller guide motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
folding roller guide motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Trouble content
The jogger shift operation in the staple compiler of the
saddle unit is abnormal.
saddle unit is abnormal.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the saddle
paper alignment motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
paper alignment motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
MX-7500N TROUBLESHOOTING 7 – 23
F0-44
Finisher saddle rear edge hold motor
section abnormality (FSM210)
section abnormality (FSM210)
F0-45
Finisher saddle staple motor section
abnormality (FSM209)
abnormality (FSM209)
F0-46
Finisher saddle rear edge shift motor
section abnormality (FSM211)
section abnormality (FSM211)
F0-47
Finisher saddle flapper motor section
abnormality (FSM213)
abnormality (FSM213)
F0-48
Finisher saddle push motor section
abnormality (FSM205)
abnormality (FSM205)
F0-49
Finisher saddle separation motor
section abnormality (FSM214)
section abnormality (FSM214)
F0-51
Finisher trimmer cutter motor
abnormality (FTM106)
abnormality (FTM106)
F0-52
Finisher trimmer registration motor
section abnormality (FTM102)
section abnormality (FTM102)
Trouble content
The operation of the rear edge hold member of the
saddle unit is abnormal.
saddle unit is abnormal.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the saddle rear
edge hold motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
edge hold motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Trouble content
The staple operation of the saddle unit is abnormal.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the saddle
staple motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
staple motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Trouble content
The operation of the rear edge shift motor of the
finisher saddle unit is abnormal.
finisher saddle unit is abnormal.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the saddle rear
edge shift motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
edge shift motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Trouble content
The operation of the rear edge flapper unit of the
saddle unit is abnormal.
saddle unit is abnormal.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the saddle
flapper motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
flapper motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Trouble content
The pushing operation of the saddle unit is abnormal.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the saddle push
motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Trouble content
The operation of the takeup separation roller of the
saddle unit is abnormal.
saddle unit is abnormal.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the saddle
separation motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
separation motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Trouble content
The cutter operation of the trimmer unit is abnormal.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the trimmer
cutter motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
cutter motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Trouble content
PCU
Detail
The operation of the registration taking unit of the
trimmer unit is abnormal.
trimmer unit is abnormal.
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the trimmer
registration motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
registration motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
MX-7500N TROUBLESHOOTING 7 – 24
F0-53
Finisher trimmer inlet port separation
motor abnormality (FTM103)
motor abnormality (FTM103)
F0-54
Finisher trimmer paper exit separation
motor section abnormality (FTM104)
motor section abnormality (FTM104)
F0-55
Finisher trimmer bundle press motor
section abnormality (FTM105)
section abnormality (FTM105)
F0-56
Paper remaining trouble in the finisher
trimmer
trimmer
F0-60
Communication trouble between the
stacker first series and the down-
stream units.
stacker first series and the down-
stream units.
F0-61
Stacker first series offset unit abnor-
mality
mality
F0-62
Stacker first series front side jogger
abnormality
abnormality
Trouble content
The separation operation of the inlet port roller of the
trimmer unit is abnormal.
trimmer unit is abnormal.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the trimmer inlet
port separation motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
port separation motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Trouble content
The separation operation of the paper exit roller of the
trimmer unit is abnormal.
trimmer unit is abnormal.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the trimmer
paper exit separation motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
paper exit separation motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Trouble content
The nip and separation operations of the bundle press
roller of the trimmer unit are abnormal.
roller of the trimmer unit are abnormal.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector, HP sensor breakdown.
harness or connector, HP sensor breakdown.
Check & Remedy
Use SIM3-3 to check the operation of the trimmer
bundle press motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
bundle press motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Trouble content
Paper bundle remained in the trimmer is not
discharged by the automatic paper exit operation.
discharged by the automatic paper exit operation.
Detail
PCU
Cause
Trimmer inlet port sensor breakdown
The paper bundle is bent and cannot be transported.
The paper bundle is bent and cannot be transported.
Check & Remedy
Use SIM3-3 to check the operation of the trimmer
transport motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Check the paper bundle can be transported or not.
transport motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
Check the paper bundle can be transported or not.
Trouble content
Communication trouble with a downstream unit
Detail
PCU
Cause
Stacker unit ID setting failure (Setting failure of the
DIP switch on the control PWB), noises on the
communication line, control PWB trouble, connector
connection failure, harness breakage, disconnection
of an AC cable to a downstream unit
DIP switch on the control PWB), noises on the
communication line, control PWB trouble, connector
connection failure, harness breakage, disconnection
of an AC cable to a downstream unit
Check & Remedy
“Turn OFF/ON the power. Check connection between
the stacker and the downstream unit of the stacker.
Replace the control PWB of the downstream unit of
the stacker.”
the stacker and the downstream unit of the stacker.
Replace the control PWB of the downstream unit of
the stacker.”
Trouble content
“Abnormal operation of the offset motor which shifts
the stack tray paper exit roller
Offset home sensor detection trouble”
the stack tray paper exit roller
Offset home sensor detection trouble”
Detail
PCU
Cause
Control PWB trouble, disconnection of connector trou-
ble, motor trouble, sensor trouble
ble, motor trouble, sensor trouble
Check & Remedy
“Use SIM03-61 to check the operation of the offset
motor.
Use SIM03-60 to check the offset home sensor signal.
Replace the control PWB. Check connection of the
connector and harness from the control PWB to the
offset motor. Check connection of the connector and
harness from the control PWB to the offset home
sensor.”
motor.
Use SIM03-60 to check the offset home sensor signal.
Replace the control PWB. Check connection of the
connector and harness from the control PWB to the
offset motor. Check connection of the connector and
harness from the control PWB to the offset home
sensor.”
Trouble content
Abnormal operation of the front side jogger motor for
driving the alignment plate (front side)
Alignment plate (front side) home position front side
jogger home sensor detection trouble
driving the alignment plate (front side)
Alignment plate (front side) home position front side
jogger home sensor detection trouble
Detail
PCU
Cause
Control PWB trouble, disconnection of connector trou-
ble, motor trouble, sensor trouble
ble, motor trouble, sensor trouble
Check & Remedy
Use SIM03-61 to check the operation of the front side
jogger motor.
Use SIM03-60 to check the front side jogger home
sensor signal.
Replace the control PWB. Check connection of the
connector and harness from the control PWB to the
front side jogger motor. Check connection of the
connector and harness from the control PWB to the
front side jogger home sensor.
jogger motor.
Use SIM03-60 to check the front side jogger home
sensor signal.
Replace the control PWB. Check connection of the
connector and harness from the control PWB to the
front side jogger motor. Check connection of the
connector and harness from the control PWB to the
front side jogger home sensor.
Click on the first or last page to see other MX-6500N / MX-7500N (serv.man21) service manuals if exist.