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MX-FNX1/MX-PNX1 SELF DIAGNOSTICS AND TROUBLE CODES 9 – 1
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Service Manual
[9] SELF DIAGNOSTICS AND
TROUBLE CODES
1. Trouble code and troubleshooting
A. MX-FNX1
Phenomenon
Though the main switch of the main unit is turned ON, the
inner finisher does not operate. Trouble code: F1-00
inner finisher does not operate. Trouble code: F1-00
Case 1
Cause
Connection failure with the main unit.
Check &
Remedy
Remedy
Check to confirm the connection state of the
connectors.
connectors.
Case 2
Cause
Connection failure of the connector contact pin
(interface harness) with the main unit.
(interface harness) with the main unit.
Check &
Remedy
Remedy
Check to confirm the conduction state of the
connectors. If there is no conduction, replace
the connection wire.
connectors. If there is no conduction, replace
the connection wire.
Case 3
Cause
Front cover switch (FDSW) trouble
Check &
Remedy
Remedy
Check to confirm the conduction state of the
connectors. If there is no conduction, replace
the connection wire.
connectors. If there is no conduction, replace
the connection wire.
Case 4
Cause
Control PWB trouble
Check &
Remedy
Remedy
After checking the above 1 to 3, if DC24V and
DV5V are not supplied from the main unit and
if 24V is not supplied to TP14 and 5V is not
supplied to TP17, replace the control PWB.
DV5V are not supplied from the main unit and
if 24V is not supplied to TP14 and 5V is not
supplied to TP17, replace the control PWB.
Phenomenon
The transport motor (FRM) does not operate.
The bundle exit motor (FAM) does not operate.
The bundle exit motor (FAM) does not operate.
Case 1
Cause
Motor connector pin contact failure
Check &
Remedy
Remedy
Check the connection state of the connector.
(CN14)
(CN14)
Case 2
Cause
Motor coil disconnection
Check &
Remedy
Remedy
Perform the conduction test of the coil. If there
is no conduction, replace the motor.
is no conduction, replace the motor.
Case 3
Cause
Control PWB trouble
Check &
Remedy
Remedy
If the motor does not operate in the motor
single operation mode, replace the control
PWB.
single operation mode, replace the control
PWB.
Phenomenon
Roller up/down motor (FSWM) does not operate. Trouble
code: F1-03
code: F1-03
Case 1
Cause
Roller up/down sensor (FRLD) trouble
Check &
Remedy
Remedy
Measure the voltage of TP12 on the control
PWB to confirm that it is 5V
PWB to confirm that it is 5V
±5% when the
paper exit roller descends, and 1V or less
when the paper exit roller rises. If the voltage
does not satisfy the said condition, replace the
sensor.
when the paper exit roller rises. If the voltage
does not satisfy the said condition, replace the
sensor.
Case 2
Cause
Motor coil disconnection
Check &
Remedy
Remedy
Perform the conduction test of the coil. If there
is no conduction, replace the motor.
is no conduction, replace the motor.
Case 3
Cause
Control PWB trouble
Check &
Remedy
Remedy
After checking the above 1 and 2, if the
phenomenon is not removed though the
sensor level is changed and if the motor does
not operate in the motor single operation
mode, replace the control PWB.
phenomenon is not removed though the
sensor level is changed and if the motor does
not operate in the motor single operation
mode, replace the control PWB.
Phenomenon
The alignment motor F (FFJM) does not operate.
Trouble code: F1-19
The alignment motor R (FRJM) does not operate.
Trouble code: F1-20
Trouble code: F1-19
The alignment motor R (FRJM) does not operate.
Trouble code: F1-20
Case 1
Cause
Alignment plate HP sensor F (FFJHPD)
trouble
trouble
Check &
Remedy
Remedy
Measure the voltage of TP9 on the control
PWB to confirm that it is 5V
PWB to confirm that it is 5V
±5% when the
alignment plate is pushing against the center
portion, and is 1V or less when the alignment
plate is pushing against the front side (home
position). If the voltage does not satisfy the
above condition, replace the sensor.
portion, and is 1V or less when the alignment
plate is pushing against the front side (home
position). If the voltage does not satisfy the
above condition, replace the sensor.
Case 2
Cause
Alignment plate HP sensor R (FRJHPD)
trouble
trouble
Check &
Remedy
Remedy
Measure the voltage of TP10 on the control
PWB to confirm that it is 5V
PWB to confirm that it is 5V
±5% when the
alignment plate is pushing against the center
portion, and is 1V or less when the alignment
plate is pushing against the rear side (home
position). If the voltage does not satisfy the
above condition, replace the sensor.
portion, and is 1V or less when the alignment
plate is pushing against the rear side (home
position). If the voltage does not satisfy the
above condition, replace the sensor.
Case 3
Cause
Motor coil disconnection
Check &
Remedy
Remedy
Perform the conduction test of the coil. If there
is no conduction, replace the coil.
is no conduction, replace the coil.
Case 4
Cause
Control PWB trouble
Check &
Remedy
Remedy
After checking the above 1 to 3, if the
phenomenon is not removed though the
sensor level is changed and if the motor does
not operated in the motor single operation
mode, replace the control PWB.
phenomenon is not removed though the
sensor level is changed and if the motor does
not operated in the motor single operation
mode, replace the control PWB.
Phenomenon
A paper jam error is displayed on the system display.
Case 1
Cause
Paper jam
Check &
Remedy
Remedy
Visually check and remove the paper jam
Case 2
Cause
Inlet port sensor (FED) trouble
Check &
Remedy
Remedy
Measure the voltage of TP11 on the control
PWB to confirm that it is 1V or less when
paper is empty, and is 5V
PWB to confirm that it is 1V or less when
paper is empty, and is 5V
±5% when paper is
provided. If the voltage does not satisfy the
above condition, replace the sensor.
above condition, replace the sensor.
Case 3
Cause
Empty sensor (FSTPD) trouble
Check &
Remedy
Remedy
Measure the voltage of TP8 on the control
PWB to confirm that it is 1V or less when
paper is empty, and is 5V
PWB to confirm that it is 1V or less when
paper is empty, and is 5V
±5% when paper is
provided. If the voltage does not satisfy the
above condition, replace the sensor.
above condition, replace the sensor.
Case 4
Cause
Control PWB trouble
Check &
Remedy
Remedy
If the phenomenon is not removed though the
sensor level is changed by turning ON/OFF
each sensor, replace the control PWB.
sensor level is changed by turning ON/OFF
each sensor, replace the control PWB.
Phenomenon
Case 1
Cause
Tray paper empty sensor (FBED) trouble
Check &
Remedy
Remedy
Measure the voltage of TP4 on the control
PWB to confirm that it is 5V
PWB to confirm that it is 5V
±5% when paper is
empty, and is 1V or less when paper is
provided. If the voltage does not satisfy the
above condition, replace the sensor.
provided. If the voltage does not satisfy the
above condition, replace the sensor.
Case 2
Cause
Control PWB trouble
Check &
Remedy
Remedy
If the phenomenon is not removed though the
sensor level is changed by turning ON/OFF
each sensor, replace the control PWB.
sensor level is changed by turning ON/OFF
each sensor, replace the control PWB.
MX-FNX1/MX-PNX1 SELF DIAGNOSTICS AND TROUBLE CODES 9 – 2
Phenomenon
A document is discharged to the reverse path in the
operation other than reverse operation.
operation other than reverse operation.
Case 1
Cause
Flapper solenoid (FINRPS) connector pin
trouble
trouble
Check &
Remedy
Remedy
Check the connection state of the connector.
(CN15)
(CN15)
Case 2
Cause
Solenoid coil disconnection
Check &
Remedy
Remedy
Perform the conduction test of the coil. If there
is no conduction, replace the coil.
is no conduction, replace the coil.
Case 3
Cause
Control PWB trouble
Check &
Remedy
Remedy
If the flapper solenoid (FINRPS) does not
operate in the solenoid single operation mode,
replace the control PWB.
operate in the solenoid single operation mode,
replace the control PWB.
Phenomenon
The belt separation solenoid (FBRS) does not operate.
The paper surface detection solenoid (FSLS) does not
operate
The paddle one-rotation solenoid (FPDS) does not
operate.
The paper surface detection solenoid (FSLS) does not
operate
The paddle one-rotation solenoid (FPDS) does not
operate.
Case 1
Cause
Solenoid connector pin trouble
Check &
Remedy
Remedy
Check the connection state of the connector.
(CN15, 20)
(CN15, 20)
Case 2
Cause
Solenoid coil disconnection
Check &
Remedy
Remedy
Perform the conduction test of the coil. If there
is no conduction, replace the coil.
is no conduction, replace the coil.
Case 3
Cause
Control PWB trouble
Check &
Remedy
Remedy
If the solenoid does not operate in the single
operation mode of the belt separation solenoid
(FBRS), the paper surface detection solenoid
(FSLS), or the paddle one-rotation solenoid
(FPDS), replace the control PWB.
operation mode of the belt separation solenoid
(FBRS), the paper surface detection solenoid
(FSLS), or the paddle one-rotation solenoid
(FPDS), replace the control PWB.
Phenomenon
The take-up belt does not operate normally.
Case 1
Cause
Take-up belt sensor (FBRD) trouble
Check &
Remedy
Remedy
Measure the voltage of TP13 on the control
PWB to confirm that it is 5V
PWB to confirm that it is 5V
±5% when the belt
descends, and is 1V or less when the belt
separates. If the voltage does not satisfy the
above condition, replace the sensor.
separates. If the voltage does not satisfy the
above condition, replace the sensor.
Case 2
Cause
Control PWB trouble
Check &
Remedy
Remedy
If the phenomenon is not removed though the
sensor level is changed by turning ON/OFF
each sensor, replace the control PWB.
sensor level is changed by turning ON/OFF
each sensor, replace the control PWB.
Phenomenon
The staple shift motor does not operate.
Trouble code: F1-08
Trouble code: F1-08
Case 1
Cause
Stapler HP sensor (FSTHPD) trouble
Check &
Remedy
Remedy
Measure the voltage of TP7 on the control
PWB to confirm that it is 5V
PWB to confirm that it is 5V
±5% when the
stapler unit is pushing against the front side
(home position), and is 1V or less when the
stapler unit is pushing against the rear side. If
the voltage does not satisfy the above
condition, replace the sensor.
(home position), and is 1V or less when the
stapler unit is pushing against the rear side. If
the voltage does not satisfy the above
condition, replace the sensor.
Case 2
Cause
Motor coil disconnection
Check &
Remedy
Remedy
Perform the conduction test of the coil. If there
is no conduction, replace the coil.
is no conduction, replace the coil.
Case 3
Cause
Control PWB trouble
Check &
Remedy
Remedy
After checking the above 1 to 2, if the
phenomenon is not removed though the
sensor level is changed and if the motor does
not operate in the motor single operation
mode, replace the control PWB.
phenomenon is not removed though the
sensor level is changed and if the motor does
not operate in the motor single operation
mode, replace the control PWB.
Phenomenon
The stapler does not operate. Trouble code: F1-10
Case 1
Cause
Alignment plate position sensor (FJPD) trouble
Check &
Remedy
Remedy
Measure the voltage of TP50 on the control
PWB to confirm that it is 1V or less when the
stapler is at the paper rear edge stopper
section, and is 5V
PWB to confirm that it is 1V or less when the
stapler is at the paper rear edge stopper
section, and is 5V
±5% when the stapler is not
at that position. If the voltage does not satisfy
the above condition, replace the sensor.
the above condition, replace the sensor.
Case 2
Cause
Stapler home sensor (FSHPD) trouble
Check &
Remedy
Remedy
Measure the voltage of TP51 on the control
PWB to confirm that it is 5V
PWB to confirm that it is 5V
±5% at the stapling
mechanism home position, and is 1V or less
when stapling. If the voltage does not satisfy
the above condition, replace the stapler.
when stapling. If the voltage does not satisfy
the above condition, replace the stapler.
Case 3
Cause
Self priming sensor (FSTD) trouble
Check &
Remedy
Remedy
Measure the voltage of TP52 on the control
PWB to confirm that it is 5V
PWB to confirm that it is 5V
±5% when a
cartridge is provided (READY state), and is 1V
or less when a cartridge is not provided. If the
voltage does not satisfy the above condition,
replace the stapler.
or less when a cartridge is not provided. If the
voltage does not satisfy the above condition,
replace the stapler.
Case 4
Cause
Staple empty sensor (FSD) trouble
Check &
Remedy
Remedy
Measure the voltage of TP53 on the control
PWB to confirm that it is 5V
PWB to confirm that it is 5V
±5% when a
cartridge is provided (with staples), and is 1V
or less when a cartridge is not provided. If the
voltage does not satisfy the above condition,
replace the stapler.
or less when a cartridge is not provided. If the
voltage does not satisfy the above condition,
replace the stapler.
Case 5
Cause
Motor coil disconnection
Check &
Remedy
Remedy
Perform the conduction test of the coil. If there
is no conduction, replace the stapler.
is no conduction, replace the stapler.
Case 6
Cause
Control PWB trouble
Check &
Remedy
Remedy
After checking the above 1 to 5, if the
phenomenon is not removed though the
sensor level is changed and if the motor does
not operate in the motor single operation
mode, replace the control PWB.
phenomenon is not removed though the
sensor level is changed and if the motor does
not operate in the motor single operation
mode, replace the control PWB.
Phenomenon
The tray does not operate. Trouble code: F1-15
Case 1
Cause
The paper surface sensor 1 (FSLD1), paper
surface sensor 2 (FSLD2) trouble
surface sensor 2 (FSLD2) trouble
Check &
Remedy
Remedy
Measure the voltage of TP5 and 6 on the
control PWB to confirm that it is changed in the
range of 1V or less to 5V
control PWB to confirm that it is changed in the
range of 1V or less to 5V
±5% when the paper
holding lever is moved. If the voltage does not
satisfy the above condition, replace the sensor.
satisfy the above condition, replace the sensor.
Case 2
Cause
Tray upper limit sensor (FULD) trouble
Check &
Remedy
Remedy
Measure the voltage of TP1 on the control
PWB to confirm that it is 1V or less when the
tray is at the upper limit position, and is 5V
PWB to confirm that it is 1V or less when the
tray is at the upper limit position, and is 5V
±5%
when the tray is not at the upper limit position.
If the voltage does not satisfy the above
condition, replace the sensor.
If the voltage does not satisfy the above
condition, replace the sensor.
Case 3
Cause
Tray intermediate lower limit sensor (FMLLD)
trouble
trouble
Check &
Remedy
Remedy
Measure the voltage of TP2 on the control
PWB to confirm that it is 1V or less when the
tray is at the intermediate position, and is
5V
PWB to confirm that it is 1V or less when the
tray is at the intermediate position, and is
5V
±5% when the tray is not at the intermediate
position. If the voltage does not satisfy the
above condition, replace the sensor.
above condition, replace the sensor.
Case 4
Cause
Tray lower limit sensor (FLLD) trouble
Check &
Remedy
Remedy
Measure the voltage of TP3 on the control
PWB to confirm that it is 1V or less when the
tray is at the lower limit position, and is 5V
PWB to confirm that it is 1V or less when the
tray is at the lower limit position, and is 5V
±5%
when the tray is not at the lower limit position.
If the voltage does not satisfy the above
condition, replace the sensor.
If the voltage does not satisfy the above
condition, replace the sensor.
Case 5
Cause
Motor coil disconnection
Check &
Remedy
Remedy
Perform the conduction test of the coil. If there
is no conduction, replace the stapler.
is no conduction, replace the stapler.
MX-FNX1/MX-PNX1 SELF DIAGNOSTICS AND TROUBLE CODES 9 – 3
B. MX-PNX1A/B/C/D
Case 6
Cause
Control PWB trouble
Check &
Remedy
Remedy
After checking the above 1 to 5, if the
phenomenon is not removed though the
sensor level is changed and if the motor does
not operate in the motor single operation
mode, replace the control PWB.
phenomenon is not removed though the
sensor level is changed and if the motor does
not operate in the motor single operation
mode, replace the control PWB.
Phenomenon
The fan (FFAN) does not operate. Trouble code: F1-
21
21
Case 1
Cause
Pinching of a foreign material
Check &
Remedy
Remedy
Visually check to remove a foreign material from the
inlet port.
inlet port.
Case 2
Cause
Motor coil disconnection
Check &
Remedy
Remedy
Perform the conduction test of the coil. If there is no
conduction, replace the motor.
conduction, replace the motor.
Case 3
Cause
Lock detection trouble
Check &
Remedy
Remedy
Measure the voltage of TP88 on the control PWB to
confirm that it is 1V or less when lock is released,
and is 5V
confirm that it is 1V or less when lock is released,
and is 5V
±5% when lock is set. If the voltage does
not satisfy the above condition, replace it.
Case 4
Cause
Control PWB trouble
Check &
Remedy
Remedy
After checking the above 1 to 3, if the fan (FFAN)
does not operate in the motor single operation mode,
replace the control PWB.
does not operate in the motor single operation mode,
replace the control PWB.
Phenomenon
Though the main switch of the main unit is turned
ON, the inner punch does not operate at all.
ON, the inner punch does not operate at all.
Case 1
Cause
Connection failure with the inner finisher
Check &
Remedy
Remedy
Check to confirm that each connector is connected
properly.
properly.
Case 2
Cause
Connection failure of the drawer connector with the
inner finisher
inner finisher
Check &
Remedy
Remedy
Check the conduction state of the connector pins as
well as the inner finisher. If there is no conduction,
replace the drawer connector.
well as the inner finisher. If there is no conduction,
replace the drawer connector.
Case 3
Cause
Control PWB trouble
Check &
Remedy
Remedy
After checking the above 1 and 2, if DC24V and
DC5V are not supplied from the main unit or if 24V is
not output to TP19 and 5V is not output to TP22 on
the control PWB, replace the control PWB.
DC5V are not supplied from the main unit or if 24V is
not output to TP19 and 5V is not output to TP22 on
the control PWB, replace the control PWB.
Pheno
menon
menon
The punch motor (FPNM) does not operate.
Trouble code: F1-34
Trouble code: F1-34
Case 1
Cause
Punch position sensor (FPHPD) trouble
Check &
Remedy
Remedy
Measure the voltage of TP47 on the inner finisher
control PWB to confirm that it is 5V
control PWB to confirm that it is 5V
±5% at the home
position, and is 1V or less when punching. If the
voltage does not satisfy the above condition, replace
the sensor.
voltage does not satisfy the above condition, replace
the sensor.
Case 2
Cause
Rear position sensor (FPRPD) trouble
Check &
Remedy
Remedy
Measure the voltage of TP48 on the inner finisher
control PWB to confirm that it is 5V
control PWB to confirm that it is 5V
±5% at the lower
limit position, and is 1V or less at the upper limit
position. If the voltage does not satisfy the above
condition, replace the sensor.
position. If the voltage does not satisfy the above
condition, replace the sensor.
Case 3
Cause
Motor coil disconnection
Check &
Remedy
Remedy
Perform the conduction test of the coil. If there is no
conduction, replace the coil.
conduction, replace the coil.
Case 4
Cause
Control PWB trouble
Check &
Remedy
Remedy
After checking the above 1 to 3, if the phenomenon
is not removed though the sensor level is changed
and if the motor does not operate in the motor single
operation mode, replace the control PWB.
is not removed though the sensor level is changed
and if the motor does not operate in the motor single
operation mode, replace the control PWB.
Phenomenon
Punch horizontal resist motor (FPSM) does not
operate. Trouble code: F1-33
operate. Trouble code: F1-33
Case 1
Cause
Horizontal shift HP sensor (FPSHPD) trouble
Check &
Remedy
Remedy
Measure the voltage of TP49 on the inner finisher
control PWB to confirm that it is 5V
control PWB to confirm that it is 5V
±5% at the home
position, and is 1V or less at the upper limit position.
If the voltage does not satisfy the above condition,
replace the sensor.
If the voltage does not satisfy the above condition,
replace the sensor.
Case 2
Cause
Motor coil disconnection
Check &
Remedy
Remedy
Perform the conduction test of the coil. If there is no
conduction, replace the coil.
conduction, replace the coil.
Case 3
Cause
Control PWB trouble
Check &
Remedy
Remedy
After checking the above 1 and 2, if the
phenomenon is not removed though the sensor level
is changed and if the motor does not operate in the
motor single operation mode, replace the control
PWB.
phenomenon is not removed though the sensor level
is changed and if the motor does not operate in the
motor single operation mode, replace the control
PWB.
Phenomenon
The punch dust container full is not detected.
Case 1
Cause
Full sensor (FPDD) trouble
Check &
Remedy
Remedy
If there is no punch dust in the punch dust container,
measure the voltage of TP2 on the control PWB to
confirm that it is 5V
measure the voltage of TP2 on the control PWB to
confirm that it is 5V
±5% when the punch dust
Case 2
Cause
Control PWB trouble
Check &
Remedy
Remedy
If the phenomenon is not removed though the
sensor level is changed by turning ON/OFF the
sensor, replace the control PWB.
sensor level is changed by turning ON/OFF the
sensor, replace the control PWB.
Phenomenon
Case 1
Cause
Paper jam
Check &
Remedy
Remedy
Visually check and remove the paper jam.
Case 2
Cause
Paper rear edge sensor (FPPEND) trouble
Check &
Remedy
Remedy
Measure the voltage of TP54 on the inner finisher
control PWB to confirm that it is 1.05V or less when
paper is supplied, and is 2.88V or more when paper
is empty. If the voltage does not satisfy the above
condition, replace the sensor PWB (LED, PTR).
control PWB to confirm that it is 1.05V or less when
paper is supplied, and is 2.88V or more when paper
is empty. If the voltage does not satisfy the above
condition, replace the sensor PWB (LED, PTR).
Case 3
Cause
Paper horizontal resist sensor (FPPD1 to 6) trouble
Check &
Remedy
Remedy
Measure the voltage of TP55 on the inner finisher
control PWB to confirm that it is 1.05V or less when
paper is supplied, and is 2.88V or more when paper
is empty. If the voltage does not satisfy the above
condition, replace the sensor PWB (LED, PTR).
control PWB to confirm that it is 1.05V or less when
paper is supplied, and is 2.88V or more when paper
is empty. If the voltage does not satisfy the above
condition, replace the sensor PWB (LED, PTR).
Case 4
Cause
Control PWB trouble
Check &
Remedy
Remedy
If the phenomenon is not removed though the
sensor level is changed by turning ON/OFF the
sensor, replace the control PWB.
sensor level is changed by turning ON/OFF the
sensor, replace the control PWB.