Sharp MX-6500N / MX-7500N (serv.man21) Service Manual ▷ View online
MX-7500N TROUBLESHOOTING 7 – 25
F0-63
Stacker first series rear side jogger
abnormality
abnormality
F0-64
Stacker first series lead edge jogger
abnormality
abnormality
F0-65
Stacker first series stack tray abnor-
mality
mality
F0-70
Communication trouble between the
finisher and the folding unit
finisher and the folding unit
F0-71
Folding unit lead edge holding guide
motor section abnormality (FLM10)
motor section abnormality (FLM10)
F0-72
Folding unit backup RAM trouble
F0-73
Folding unit power fan abnormality
F0-74
Folding unit folding tray paper exit
motor section abnormality (FLM14)
motor section abnormality (FLM14)
Trouble content
Abnormal operation of the rear side jogger motor for
driving the alignment plate (rear side)
Alignment plate (rear side) home position rear side
jogger home sensor detection trouble
driving the alignment plate (rear side)
Alignment plate (rear side) home position rear 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 rear side
jogger motor.
Use SIM03-60 to check the rear side jogger home
sensor signal.
Replace the control PWB. Check connection of the
connector and harness from the control PWB to the
rear side jogger motor. Check connection of the
connector and harness from the control PWB to the
rear side jogger home sensor.
jogger motor.
Use SIM03-60 to check the rear side jogger home
sensor signal.
Replace the control PWB. Check connection of the
connector and harness from the control PWB to the
rear side jogger motor. Check connection of the
connector and harness from the control PWB to the
rear side jogger home sensor.
Trouble content
Abnormal operation of the lead edge jogger motor for
driving the alignment plate (lead edge)
Alignment plate (lead edge) home position lead edge
jogger home sensor detection trouble
driving the alignment plate (lead edge)
Alignment plate (lead edge) home position lead edge
jogger home sensor detection trouble
Detail
PCU
Cause
Control PWB trouble, disconnection of connector
trouble, motor trouble, sensor trouble
trouble, motor trouble, sensor trouble
Check & Remedy
Use SIM03-61 to check the operation of the lead edge
jogger motor.
Use SIM03-60 to check the lead edge jogger home
sensor signal.
Replace the control PWB. Check connection of the
connector and harness from the control PWB to the
lead edge jogger motor. Check connection of the
connector and harness from the control PWB to the
lead edge jogger home sensor.
jogger motor.
Use SIM03-60 to check the lead edge jogger home
sensor signal.
Replace the control PWB. Check connection of the
connector and harness from the control PWB to the
lead edge jogger motor. Check connection of the
connector and harness from the control PWB to the
lead edge jogger home sensor.
Trouble content
Abnormal operation of the stack tray lift motor Abnor-
mality of the tray DC motor encoder sensor for detect-
ing the motor rotation
Tray limit switch (upper limit, lower limit) operation
Stack tray home sensor abnormality, stack tray 25%
load position sensor abnormality, stack tray 50% load
position sensor abnormality, stack tray 75% load posi-
tion sensor abnormality, stack tray 100% load position
sensor abnormality, stack tray extendable position
sensor abnormality
mality of the tray DC motor encoder sensor for detect-
ing the motor rotation
Tray limit switch (upper limit, lower limit) operation
Stack tray home sensor abnormality, stack tray 25%
load position sensor abnormality, stack tray 50% load
position sensor abnormality, stack tray 75% load posi-
tion sensor abnormality, stack tray 100% load position
sensor abnormality, stack tray extendable position
sensor abnormality
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 stack tray
lift motor.
Use SIM03-60 to check the tray DC motor encoder
sensor signal.
Use SIM03-60 to check the operation of the tray limit
switch (upper limit, lower limit).
Use SIM03-60 to check each tray position sensor sig-
nal and to check that two or more sensors are not
simultaneously ON.
Replace the control PWB. Check connection of the
connector and harness from the control PWB to the
stack tray lift motor. Check connection of the connec-
tor and harness from the control PWB to the
tray DC motor encoder sensor. Check connection of
the connector and harness from the control PWB to
the tray limit switch (upper limit, lower limit). Check
connection of the connector and harness from the
control PWB to each tray position sensor.
lift motor.
Use SIM03-60 to check the tray DC motor encoder
sensor signal.
Use SIM03-60 to check the operation of the tray limit
switch (upper limit, lower limit).
Use SIM03-60 to check each tray position sensor sig-
nal and to check that two or more sensors are not
simultaneously ON.
Replace the control PWB. Check connection of the
connector and harness from the control PWB to the
stack tray lift motor. Check connection of the connec-
tor and harness from the control PWB to the
tray DC motor encoder sensor. Check connection of
the connector and harness from the control PWB to
the tray limit switch (upper limit, lower limit). Check
connection of the connector and harness from the
control PWB to each tray position sensor.
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.
MX-7500N TROUBLESHOOTING 7 – 26
F0-75
Folding unit upper stopper motor
section abnormality (FLM8)
section abnormality (FLM8)
F0-76
3-fold stopper motor section in the
folding unit is abnormal (FLM9)
folding unit is abnormal (FLM9)
F0-77
Folding unit transport motor section
abnormality (FLM11)
abnormality (FLM11)
F0-80
Finisher power cooling fan motor
abnormality (FNFAN101)
abnormality (FNFAN101)
F0-81
Finisher upper tray fan abnormality
(FNFAN103)
(FNFAN103)
F0-82
Finisher lower tray fan abnormality
(FNFAN104)
(FNFAN104)
F0-83
Finisher paper guide motor section
abnormality (FNM120)
abnormality (FNM120)
F0-84
Finisher grip section abnormality
(FNM117)
(FNM117)
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.
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.
motor.
Check connection from the control PWB to the motor
and the sensor.
Replace the control PWB, the motor, and the sensor.
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.
MX-7500N TROUBLESHOOTING 7 – 27
F0-85
Booklet finisher detection trouble
F0-86
Finisher discharged paper hold motor
section abnormality (FNM114)
section abnormality (FNM114)
F0-90
Communication trouble between the
stacker second series and the down-
stream units.
stacker second series and the down-
stream units.
F0-91
Stacker second series offset unit
abnormality
abnormality
F0-92
Stacker second series front side jog-
ger abnormality
ger abnormality
F0-93
Stacker second series rear side jogger
abnormality
abnormality
F0-94
Stacker second series lead edge jog-
ger abnormality
ger abnormality
Trouble content
Booklet relay PWB connection detection abnormally
Detail
PCU
Cause
Booklet relay PWB trouble, Finisher control PWB
trouble, disconnection of harness or connector,
Booklet maker mode setting failure of system setting.
trouble, disconnection of harness or connector,
Booklet maker mode setting failure of system setting.
Check & Remedy
Check connection from Booklet relay PWB to Finisher
control PWB, Replace the Booklet relay PWB,
Replace the Finisher control PWB, Check the Booklet
Maker mode of system setting, Check if Sim26-50 “J”
is “1”.
control PWB, Replace the Booklet relay PWB,
Replace the Finisher control PWB, Check the Booklet
Maker mode of system setting, Check if Sim26-50 “J”
is “1”.
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
Communication trouble with a downstream unit
Detail
PCU
Cause
Communication trouble with the stacker and the
downstream unit of the stacker
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
downstream unit of the stacker
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
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
trouble, motor trouble, sensor trouble
trouble, 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
trouble, motor trouble, sensor trouble
trouble, 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 con-
nector 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 con-
nector and harness from the control PWB to the
front side jogger home sensor.
Trouble content
Abnormal operation of the rear side jogger motor for
driving the alignment plate (rear side)
Alignment plate (rear side) home position rear side
jogger home sensor detection trouble
driving the alignment plate (rear side)
Alignment plate (rear side) home position rear side
jogger home sensor detection trouble
Detail
PCU
Cause
Control PWB trouble, disconnection of connector
trouble, motor trouble, sensor trouble
trouble, motor trouble, sensor trouble
Check & Remedy
Use SIM03-61 to check the operation of the rear side
jogger motor.
Use SIM03-60 to check the rear side jogger home
sensor signal.
Replace the control PWB. Check connection of the
connector and harness from the control PWB to the
rear side jogger motor.
Check connection of the connector and harness from
the control PWB to the rear side jogger home sensor.
jogger motor.
Use SIM03-60 to check the rear side jogger home
sensor signal.
Replace the control PWB. Check connection of the
connector and harness from the control PWB to the
rear side jogger motor.
Check connection of the connector and harness from
the control PWB to the rear side jogger home sensor.
Trouble content
Abnormal operation of the lead edge jogger motor for
driving the alignment plate (lead edge)
Alignment plate (lead edge) home position lead edge
jogger home sensor detection trouble
driving the alignment plate (lead edge)
Alignment plate (lead edge) home position lead edge
jogger home sensor detection trouble
Detail
PCU
Cause
Control PWB trouble, disconnection of connector
trouble, motor trouble, sensor trouble
trouble, motor trouble, sensor trouble
Check & Remedy
Use SIM03-61 to check the operation of the lead edge
jogger motor.
Use SIM03-60 to check the lead edge jogger home
sensor signal.
Replace the control PWB.
Check connection of the connector and harness from
the control PWB to the lead edge jogger motor.
Check connection of the connector and harness from
the control PWB to the lead edge jogger home sensor.
jogger motor.
Use SIM03-60 to check the lead edge jogger home
sensor signal.
Replace the control PWB.
Check connection of the connector and harness from
the control PWB to the lead edge jogger motor.
Check connection of the connector and harness from
the control PWB to the lead edge jogger home sensor.
MX-7500N TROUBLESHOOTING 7 – 28
F0-95
Stacker second series stack tray
abnormality
abnormality
F1-00
Finisher - PCU PWB communication
error
error
F1-21
Abnormality of relay unit fan motor
inside the machine (PDCF)
inside the machine (PDCF)
F1-50
Main unit - Finisher combination error
F1-60
Communication trouble between
peripheral devices (Inserter detection)
peripheral devices (Inserter detection)
F1-64
No. 1 pickup motor trouble
F1-65
No. 2 pickup motor trouble
F1-66
No. 1 lift motor trouble
Trouble content
Abnormal operation of the stack tray lift motor
Abnormality of the tray DC motor encoder sensor for
detecting the motor rotation
Tray limit switch (upper limit, lower limit) operation
Stack tray home sensor abnormality, stack tray 25%
load position sensor abnormality, stack tray 50% load
position sensor abnormality, stack tray 75% load
position sensor abnormality, stack tray 100% load
position sensor abnormality, stack tray extendable
position sensor abnormality
Abnormality of the tray DC motor encoder sensor for
detecting the motor rotation
Tray limit switch (upper limit, lower limit) operation
Stack tray home sensor abnormality, stack tray 25%
load position sensor abnormality, stack tray 50% load
position sensor abnormality, stack tray 75% load
position sensor abnormality, stack tray 100% load
position sensor abnormality, stack tray extendable
position sensor abnormality
Detail
PCU
Cause
Control PWB trouble, disconnection of connector
trouble, motor trouble, sensor trouble
trouble, motor trouble, sensor trouble
Check & Remedy
Use SIM03-61 to check the operation of the stack tray
lift motor.
Use SIM03-60 to check the tray DC motor encoder
sensor signal.
Use SIM03-60 to check the operation of the tray limit
switch (upper limit, lower limit).
Use SIM03-60 to check each tray position sensor sig-
nal and to check that two or more sensors are not
simultaneously ON.
Replace the control PWB. Check connection of the
connector and harness from the control PWB to the
stack tray lift motor. Check connection of the connec-
tor and harness from the control PWB to the
tray DC motor encoder sensor. Check connection of
the connector and harness from the control PWB to
the tray limit switch (upper limit, lower limit). Check
connection of the connector and harness from the
control PWB to each tray position sensor.
lift motor.
Use SIM03-60 to check the tray DC motor encoder
sensor signal.
Use SIM03-60 to check the operation of the tray limit
switch (upper limit, lower limit).
Use SIM03-60 to check each tray position sensor sig-
nal and to check that two or more sensors are not
simultaneously ON.
Replace the control PWB. Check connection of the
connector and harness from the control PWB to the
stack tray lift motor. Check connection of the connec-
tor and harness from the control PWB to the
tray DC motor encoder sensor. Check connection of
the connector and harness from the control PWB to
the tray limit switch (upper limit, lower limit). Check
connection of the connector and harness from the
control PWB to each tray position sensor.
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
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
The finisher which is not supported by the main unit
model is installed.
Finisher control PWB trouble.
model is installed.
Finisher control PWB trouble.
Check & Remedy
Install a proper finisher.
Replace the finisher control PWB.
Replace the finisher control PWB.
Trouble content
Communication abnormality between the units
connected to the downstream of the inserter.
No response for a command from the inserter. Motor
abnormality.
connected to the downstream of the inserter.
No response for a command from the inserter. Motor
abnormality.
Detail
PCU
Cause
Noise on the communication line
Control PWB trouble.
Harness and connector connection trouble.
Control PWB trouble.
Harness and connector connection trouble.
Check & Remedy
Turn OFF/ON the power.
Check connection of the connector with the
downstream units of the inserter.
Replace the control PWB of the downstream units of
the inserter.
Check connection of the connector with the
downstream units of the inserter.
Replace the control PWB of the downstream units of
the inserter.
Trouble content
Abnormality of the paper feed roller driving motor in
the upper side paper feed section of the inserter
the upper side paper feed section of the inserter
Detail
PCU
Cause
Motor lock, control PWB trouble, home position sen-
sor breakdown, connection harness / connector con-
nection trouble.
sor breakdown, connection harness / connector con-
nection trouble.
Check & Remedy
Use Sim. 3-31 to check the operation of the No. 1
pickup motor.
Check connection from the control PWB to the motor.
Replace the control PWB and the sensor part.
pickup motor.
Check connection from the control PWB to the motor.
Replace the control PWB and the sensor part.
Trouble content
Abnormality of the paper feed roller driving motor in
the lower side paper feed section of the inserter
the lower side paper feed section of the inserter
Detail
PCU
Cause
Motor lock, control PWB trouble, home position sen-
sor breakdown, connection harness / connector con-
nection trouble.
sor breakdown, connection harness / connector con-
nection trouble.
Check & Remedy
Use Sim. 3-31 to check the operation of the No. 2
pickup motor.
Check connection from the control PWB to the motor.
Replace the control PWB and the sensor part.
pickup motor.
Check connection from the control PWB to the motor.
Replace the control PWB and the sensor part.
Trouble content
Abnormality of the tray lift-up driving motor in the
upper side paper feed section of the inserter
upper side paper feed section of the inserter
Detail
PCU
Cause
Motor lock, control PWB trouble, home position sen-
sor breakdown, connection harness / connector con-
nection trouble.
sor breakdown, connection harness / connector con-
nection trouble.
Check & Remedy
Use Sim. 3-31 to check the operation of the No. 1 lift
motor.
Check connection from the control PWB to the motor.
Replace the control PWB and the sensor part.
motor.
Check connection from the control PWB to the motor.
Replace the control PWB and the sensor part.
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