Sharp MX-6240N / MX-7040N (serv.man26) Service Manual ▷ View online
MX-7040N TROUBLESHOOTING 7 – 25
F0-56
Paper remaining trouble in the finisher
trimmer
F0-70
Communication trouble between the
finisher and the folding unit
F0-71
Folding unit lead edge hold ing guide
motor section abnormality (FLM10)
F0-72
Folding unit backup RAM trouble
F0-73
Folding unit power fan abnormality
F0-74
Folding unit folding tray p aper exit
motor section abnormality (FLM14)
F0-75
Folding unit upper stopper motor
section abnormality (FLM8)
F0-76
3-fold stopper motor s ection in the
folding unit is abnormal (FLM9)
F0-77
Folding unit transport motor section
abnormality (FLM11)
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 between the finisher and the
folding unit.
No response for a command from the folding unit.
folding unit.
No response for a command from the folding 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 connection between
the finisher and the folding unit. Replace the control
PWB of the folding unit.
the finisher and the folding unit. Replace the control
PWB of the folding unit.
Trouble content
The operations of the folding unit lead edge holding
guide is abnormal.
guide 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 folding unit
lead edge holding guide motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
lead edge holding 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
Data cannot be written into the backup RAM of the
folding unit. The red values are abnormal.
folding unit. The red values are abnormal.
Detail
PCU
Cause
Folding unit control PWB trouble, EEPROM chip
breakdown.
breakdown.
Check & Remedy
Replace the folding unit control PWB.
Trouble content
Cooling fan abnormality in the power unit section of
the folding unit
the folding unit
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
Check connection from the control PWB to the fan
motor.
Replace the control PWB. Replace the fan motor.
motor.
Replace the control PWB. Replace the fan motor.
Trouble content
The paper exit operation to the folding unit 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 folding unit
folding tray paper exit motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
folding tray paper exit 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 upper stopper of the folding unit
is abnormal.
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 folding unit
upper stopper motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
upper 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 3-fold stopper in the folding unit
is abnormal.
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 SIM3-41 to check the operation of the 3-fold
stopper motor in the folding unit.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
stopper motor in the folding unit.
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 folding and transport operations of the folding unit
are abnormal.
are abnormal.
Detail
PCU
Cause
Motor lock, control PWB trouble, disconnection of
harness or connector.
harness or connector.
Check & Remedy
Use SIM3-41 to check the operation of the folding unit
transport motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
transport motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor
part.
MX-7040N TROUBLESHOOTING 7 – 26
F0-80
Finisher power cooling fan motor
abnormality (FNFAN101)
F0-81
Finisher upper tray fan abnormality
(FNFAN103)
F0-82
Finisher lower tray fan abnormality
(FNFAN104)
F0-83
Finisher paper guide motor section
abnormality (FNM120)
F0-84
Finisher grip section abnormality
(FNM117)
F0-86
Finisher discharged paper hold motor
section abnormality (FNM114)
F1-00
Finisher - PCU PWB communication
error
F1-03
Finisher paper exit roller lifting
operation trouble (FSWIM)
Trouble content
The operation of the cooling fan in the power unit
section of the finisher is abnormal.
section 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
Check connection from the control PWB to the fan
motor.
Replace the control PWB. Replace the fan motor.
motor.
Replace the control PWB. Replace the fan motor.
Trouble content
The operation of the cooling fan in the upper tray of
the finisher is abnormal.
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 upper tray
fan.
Check connection from the control PWB to the fan
motor.
Replace the control PWB. Replace the fan motor.
fan.
Check connection from the control PWB to the fan
motor.
Replace the control PWB. Replace the fan motor.
Trouble content
The operation of the cooling fan in the lower tray of the
finisher is abnormal.
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 lower tray
fan.
Check connection from the control PWB to the fan
motor.
Replace the control PWB. Replace the fan motor.
fan.
Check connection from the control PWB to the fan
motor.
Replace the control PWB. Replace the fan motor.
Trouble content
The operation of the paper lead edge guide unit at the
paper exit port of the finisher is abnormal.
paper exit port 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 guide
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 bundle grip operation when discharging paper
bundle from the staple compiler of the finisher is
abnormal.
bundle from 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 gripper
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 paper hold lever at the paper exit
port of the finisher is abnormal.
port 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 discharged
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.
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.
Trouble content
Detail
PCU
Cause
Connection trouble of the connector and the harness
between the finisher and the PCU PWB.
Finisher control PWB trouble.
PCU PWB trouble.
between the finisher and the PCU PWB.
Finisher control PWB trouble.
PCU PWB trouble.
Check & Remedy
Check the connector and the harness between the
finisher and the PCU PWB.
Replace the finisher control PWB.
Replace the PCU PWB.
finisher and the PCU PWB.
Replace the finisher control PWB.
Replace the PCU PWB.
Trouble content
Detail
PCU
Cause
Finisher paper exit roller lift motor trouble
Harness and connector connection trouble
Home position sensor trouble
Finisher control PWB trouble
Harness and connector connection trouble
Home position sensor trouble
Finisher control PWB trouble
Check & Remedy
Use SIM3-3 to check the operation of the paper exit
roller lift motor.
Use SIM3-2 to check the operation of the home
position sensor.
Replace the paper exit roller lift motor.
Check connection of the connector and the harness.
Replace the home position sensor.
Replace the finisher control PWB.
roller lift motor.
Use SIM3-2 to check the operation of the home
position sensor.
Replace the paper exit roller lift motor.
Check connection of the connector and the harness.
Replace the home position sensor.
Replace the finisher control PWB.
1
MX-7040N TROUBLESHOOTING 7 – 27
F1-08
Stapler shift trouble (FSM)
F1-10
Staple operation trouble (FFSM)
F1-15
Finisher paper exit tray lif t operation
trouble (FTLM)
F1-19
Finisher alignment operation trouble F
(FFJM)
F1-20
Finisher alignment operation trouble
R (FRJM)
F1-21
Abnormality of relay unit fan motor
inside the machine (PDCF)
F1-22
Finisher rear edge assist motor
trouble (FASM)
F1-23
Finisher shutter trouble (FSHC)
F1-30
Finisher - Saddle unit communication
trouble
Trouble content
Detail
PCU
Cause
Stapler shift motor trouble.
Finisher control PWB trouble.
Home position sensor trouble.
Finisher control PWB trouble.
Home position sensor trouble.
Check & Remedy
Use SIM3-3 to check the operation of the stapler shift
motor.
Use SIM3-2 to check the operation of the home
position sensor.
Replace the stapler shift motor.
Check connection of the connector and the harness.
Replace the home position sensor.
Replace the finisher control PWB.
motor.
Use SIM3-2 to check the operation of the home
position sensor.
Replace the stapler shift motor.
Check connection of the connector and the harness.
Replace the home position sensor.
Replace the finisher control PWB.
Trouble content
Detail
PCU
Cause
Staple motor trouble.
Finisher control PWB trouble.
Home position sensor trouble.
Finisher control PWB trouble.
Home position sensor trouble.
Check & Remedy
Use SIM3-3 to check the operation of the staple
motor.
Use SIM3-2 to check the operation of the home
position sensor.
Replace the staple motor.
Check connection of the connector and the harness.
Replace the home position sensor.
Replace the finisher control PWB.
motor.
Use SIM3-2 to check the operation of the home
position sensor.
Replace the staple motor.
Check connection of the connector and the harness.
Replace the home position sensor.
Replace the finisher control PWB.
Trouble content
Lift motor trouble.
Detail
PCU
Cause
Paper exit tray lift motor trouble.
Finisher control PWB trouble.
Home position sensor trouble.
Finisher control PWB trouble.
Home position sensor trouble.
Check & Remedy
Use SIM3-3 to check the operation of the paper exit
tray lift motor.
Use SIM3-2 to check the operation of the home
position sensor.
Replace the finisher control PWB.
Replace the paper exit tray lift motor.
Replace the home position sensor.
tray lift motor.
Use SIM3-2 to check the operation of the home
position sensor.
Replace the finisher control PWB.
Replace the paper exit tray lift motor.
Replace the home position sensor.
Trouble content
Detail
PCU
Cause
Finisher paper alignment motor lock.
Motor speed abnormality.
Over-current to the motor.
Finisher control PWB trouble.
Home position sensor trouble.
Motor speed abnormality.
Over-current to the motor.
Finisher control PWB trouble.
Home position sensor trouble.
Check & Remedy
Use SIM3-3 to check the operation of the paper
alignment motor F.
Use SIM3-2 to check the operation of the home
position sensor.
Replace the finisher control PWB.
Replace the paper alignment motor F.
Replace the home position sensor.
alignment motor F.
Use SIM3-2 to check the operation of the home
position sensor.
Replace the finisher control PWB.
Replace the paper alignment motor F.
Replace the home position sensor.
Trouble content
Detail
PCU
Cause
Finisher paper alignment motor lock.
Motor speed abnormality.
Over-current to the motor.
Finisher control PWB trouble.
Home position sensor trouble.
Motor speed abnormality.
Over-current to the motor.
Finisher control PWB trouble.
Home position sensor trouble.
Check & Remedy
Use SIM3-3 to check the operation of the paper
alignment motor R.
Use SIM3-2 to check the operation of the home
position sensor.
Replace the finisher control PWB.
Replace the paper alignment motor R.
Replace the home position sensor.
alignment motor R.
Use SIM3-2 to check the operation of the home
position sensor.
Replace the finisher control PWB.
Replace the paper alignment motor R.
Replace the home position sensor.
Trouble content
The operation of the relay unit fan motor inside the
machine is abnormal.
machine 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 unit
fan inside the machine.
Check connection from the control PWB to the fan
motor.
Replace the control PWB. Replace the fan motor.
fan inside the machine.
Check connection from the control PWB to the fan
motor.
Replace the control PWB. Replace the fan motor.
Trouble content
Detail
PCU
Cause
Motor harness short/open trouble.
Control PWB trouble.
Connection harness/connector connection trouble
Control PWB trouble.
Connection harness/connector connection trouble
Check & Remedy
Check the operation of the rear edge assist motor with
SIM3-3.
Check connection from the control PWB to the motor.
Replace the control PWB.
SIM3-3.
Check connection from the control PWB to the motor.
Replace the control PWB.
Trouble content
Detail
PCU
Cause
Motor lock trouble.
Control PWB trouble.
Home position sensor trouble.
Connection harness/connector connection trouble.
Control PWB trouble.
Home position sensor trouble.
Connection harness/connector connection trouble.
Check & Remedy
Check the operation of the bundle paper exit motor
with SIM3-3.
Check connection from the control PWB to the motor.
Replace the control PWB.
with SIM3-3.
Check connection from the control PWB to the motor.
Replace the control PWB.
Trouble content
Detail
PCU
Cause
Connector and harness connection trouble.
Finisher control PWB trouble.
Finisher control PWB trouble.
Check & Remedy
Check connection of the connector and the harness.
Turn OFF/ON the power.
Replace the finisher control PWB.
Turn OFF/ON the power.
Replace the finisher control PWB.
MX-7040N TROUBLESHOOTING 7 – 28
F1-31
Finisher saddle motor trouble
(Saddle stitch finisher) (FSFOM)
F1-32
Communication error between
the finisher and the punch unit
(Saddle stitch finisher)
F1-33
Punch unit shift operation trouble
(FPSM)
F1-34
Punch operation trouble (FPNM)
F1-37
Finisher data backup RAM error
F1-38
Punch data backup RAM error
F1-41
Saddle paper positioning operation
trouble (FPPM)
F1-42
Saddle guide motor trouble (FSGM)
Trouble content
Detail
PCU
Cause
Saddle paper folding motor trouble.
Saddle paper folding mechanism trouble.
Finisher control PWB trouble.
Folding plate home position sensor trouble.
Saddle paper folding motor rotation sensor trouble.
Harness/connector connection trouble.
PCU PWB trouble.
Saddle paper folding mechanism trouble.
Finisher control PWB trouble.
Folding plate home position sensor trouble.
Saddle paper folding motor rotation sensor trouble.
Harness/connector connection trouble.
PCU PWB trouble.
Check & Remedy
Use SIM3-3 to check the operation of the saddle
motor.
Check the saddle paper folding mechanism.
Check the finisher control PWB, and replace if
necessary.
Check the folding plate home position sensor, and
replace if necessary.
Check the saddle paper folding motor rotation sensor,
and replace if necessary.
Check connection of the harness/connector, and
replace if necessary.
Check the PCU PWB, and replace if necessary.
motor.
Check the saddle paper folding mechanism.
Check the finisher control PWB, and replace if
necessary.
Check the folding plate home position sensor, and
replace if necessary.
Check the saddle paper folding motor rotation sensor,
and replace if necessary.
Check connection of the harness/connector, and
replace if necessary.
Check the PCU PWB, and replace if necessary.
Trouble content
Detail
PCU
Cause
Connector/harness trouble between the finisher and
the punch unit.
Finisher control PWB trouble.
PCU PWB trouble.
Malfunction due to noises.
the punch unit.
Finisher control PWB trouble.
PCU PWB trouble.
Malfunction due to noises.
Check & Remedy
Check the connector/harness between the finisher
and the punch unit, and replace if necessary.
Check the finisher control PWB, and replace if
necessary.
Check the PCU PWB, and replace if necessary.
and the punch unit, and replace if necessary.
Check the finisher control PWB, and replace if
necessary.
Check the PCU PWB, and replace if necessary.
Trouble content
Detail
PCU
Cause
Punch shift motor trouble.
Finisher control PWB trouble.
Home position sensor trouble.
Harness and connector connection trouble.
Finisher control PWB trouble.
Home position sensor trouble.
Harness and connector connection trouble.
Check & Remedy
Use SIM3-3 to check the operation of the punch
shifting.
Use SIM3-2 to check the operation of the home
position sensor.
Replace the punch shift motor.
Replace the finisher control PWB.
Replace the home position sensor.
Check connection of the connectors and the harness.
shifting.
Use SIM3-2 to check the operation of the home
position sensor.
Replace the punch shift motor.
Replace the finisher control PWB.
Replace the home position sensor.
Check connection of the connectors and the harness.
Trouble content
Detail
PCU
Cause
Punch motor trouble.
Finisher control PWB trouble.
Home position sensor trouble.
Harness and connector connection trouble.
Finisher control PWB trouble.
Home position sensor trouble.
Harness and connector connection trouble.
Check & Remedy
Use SIM3-2 to check the operation of the home
position sensor.
Use SIM3-3 to check the operation of the punch.
Replace the punch motor.
Replace the finisher control PWB.
Replace the home position sensor.
Check connection of the connectors and the harness.
position sensor.
Use SIM3-3 to check the operation of the punch.
Replace the punch motor.
Replace the finisher control PWB.
Replace the home position sensor.
Check connection of the connectors and the harness.
Trouble content
Detail
PCU
Cause
Finisher control PWB trouble.
Malfunction due to noises
Malfunction due to noises
Check & Remedy
Replace the finisher control PWB.
Readjust the finisher. (Use SIM3-10, Finisher control
PWB DIP SW adjustment.)
Readjust the finisher. (Use SIM3-10, Finisher control
PWB DIP SW adjustment.)
Trouble content
Detail
PCU
Cause
Punch control PWB trouble.
Malfunction due to noises
Malfunction due to noises
Check & Remedy
Replace the punch control PWB.
Set the punch unit specifications, and adjust the
sensor. (Punch unit control PWB DIP SW adjustment.)
Set the punch unit specifications, and adjust the
sensor. (Punch unit control PWB DIP SW adjustment.)
Trouble content
Abnormality in the folding positioning guide motor in
the saddle section.
the saddle section.
Detail
PCU
Cause
Saddle paper positioning guide drive motor trouble.
Finisher control PWB trouble.
Home position sensor trouble.
Harness and connector connection trouble.
Finisher control PWB trouble.
Home position sensor trouble.
Harness and connector connection trouble.
Check & Remedy
Use SIM3-3 to check the operation of the saddle
paper positioning motor.
Check connection from the control PWB to the motor.
Turn OFF/ON the power.
Replace the control PWB.
Replace the sensor.
paper positioning motor.
Check connection from the control PWB to the motor.
Turn OFF/ON the power.
Replace the control PWB.
Replace the sensor.
Trouble content
Detail
PCU
Cause
Saddle roller guide motor trouble.
Finisher control PWB trouble.
Home position sensor trouble.
Harness and connector connection trouble.
Finisher control PWB trouble.
Home position sensor trouble.
Harness and connector connection trouble.
Check & Remedy
Use SIM3-3 to check the operation of the saddle roller
guide motor.
Check connection from the control PWB to the motor.
Turn OFF/ON the power.
Replace the control PWB.
Replace the sensor.
guide motor.
Check connection from the control PWB to the motor.
Turn OFF/ON the power.
Replace the control PWB.
Replace the sensor.
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