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Model
MX-RBX1 (serv.man11)
Pages
8
Size
137.58 KB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Section 9 - Self-diagnosis and Trouble Codes .
File
mx-rbx1-sm11.pdf
Date
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MX-FNX2/AR-PN1/MX-RBX1  SELF DIAG MESSAGE AND TROUBLE CODE  9 – 5
f. F1-11, Stack Delivery Motor (FAM) Fault
g. F1-15, Lift Motor (FLM) Fault
h. F1-15, Lift Motor (FLM) Fault
i. F1-15, Shift Motor (FLM) Fault
j. F1-19, Alignment Motor (front) Fault 
k. F1-20, Alignment Motor (Rear; FRJM) Fault
Cause/Trouble section
Procedure
Check
Result
Remedy
Delivery belt home position sensor 
(FOBHPD)
1
Check the delivery belt home position sensor (FOBHPD).
Is the sensor normal?
NO
Replace the sensor.
Wiring
2
Is the wiring between the finisher controller PCB and the 
stack delivery motor (FAM) normal?
NO
Correct the wiring.
Stack delivery roller
3
Try turning the stack delivery motor (FAM) by hand. 
Is the rotation smooth?
NO
Correct the mechanical 
system.
Stack delivery motor (FAM), Finisher 
controller PCB
4
Try replacing the stack delivery motor (FAM).
Is the problem corrected?
YES
End.
NO
Replace the finisher 
controller PCB.
Cause/Trouble section
Procedure
Check
Result
Remedy
Paper surface sensor (FSLD)
1
Check the paper surface sensor (FSLD).
Is the sensor normal?
NO
Replace the sensor.
Tray up/down mechanism
2
Check the tray up/down mechanism. Is the mechanism 
normal?
NO
Correct the mechanism.
Finisher controller PCB
3
Is 24 VDC supplied from the finisher controller PCB to the lift 
motor (FLM) as soon as the tray is driven?
NO
Replace the finisher 
controller PCB.
Lift motor (FLM), Wiring
4
Check the wiring from the finisher controller PCB to the lift 
motor (FLM); is it normal?
YES
Replace the lift motor (FLM).
NO
Correct the wiring.
Cause/Trouble section
Procedure
Check
Result
Remedy
Tray position
1
Is the tray as far as the lift upper limit sensor (FULD)?
YES
Lower the position of the 
tray.
Lift upper limit sensor (FULD)
2
Check the lift upper limit sensor (FULD). Is the sensor 
normal?
NO
Replace the sensor.
Finisher controller PCB, Wiring
3
Check the wiring from the finisher controller PCB to the lift 
upper limit sensor (FULD); is it normal?
YES
Replace the finisher 
controller PCB.
NO
Correct the wiring.
Cause/Trouble section
Procedure
Check
Result
Remedy
-
1
Is the tray in UP position?
YES
Go to step 4).
NO
Go to step 2).
Finisher controller PCB
2
Is power supplied to the finisher controller PCB as soon as 
the tray is driven?
YES
Go to step 3).
NO
Replace the finisher 
controller PCB.
Tray up/down mechanism, lift motor 
(FLM)
3
Is there a fault in the tray up/down mechanism?
YES
Correct the tray up/down 
mechanism.
NO
Replace the tray up/down 
motor.
Lift motor lock (FLE), Finisher controller 
PCB
4
Check the lift motor lock sensor (FLE).
Is the sensor normal?
YES
Replace the finisher 
controller PCB.
NO
Replace the sensor.
Cause/Trouble section
Procedure
Check
Result
Remedy
Alignment plate home position sensor 
(front; FFJHPD)
1
Check the alignment home position sensor (front; FFJHPD). 
Is the sensor normal?
NO
Replace the sensor.
Wiring
2
Is the wiring between the finisher controller PCB and the 
alignment plate motor (front; FFJM) normal?
NO
Correct the wiring.
Alignment plate (front)
3
Is there mechanical trapping in the alignment plate path?
YES
Correct the mechanical 
system.
Alignment motor (front; FFJM), Finisher 
controller PCB
4
Try replacing the alignment motor (front; FFJM). 
Is the problem corrected?
YES
End.
NO
Replace the finisher 
controller PCB.
Cause/Trouble section
Procedure
Check
Result
Remedy
Alignment home position sensor (rear; 
FRJHPD)
1
Check the alignment home position sensor (rear; FRJHPD). 
Is the sensor normal?
NO
Replace the sensor.
Wiring
2
Is the wiring between the finisher controller PCB and the 
alignment motor (rear; FRJM) normal?
NO
Correct the wiring.
Alignment plate (rear)
3
Is there mechanical trapping in the path of the alignment 
plate?
YES
Correct the mechanical 
mechanism.
Alignment motor (rear; FRJM), Finisher 
controller PCB
4
Try replacing the alignment motor (rear; FRJM).
Is the problem corrected?
YES
End.
NO
Replace the finisher controller 
PCB.
MX-FNX2/AR-PN1/MX-RBX1  SELF DIAG MESSAGE AND TROUBLE CODE  9 – 6
l. F1-30, Communication error
m. F1-37, Finisher Unit Back-Up RAM Fault
n. F1-80, Finisher Unit Power Supply Fault
o. F1-81, Feed Motor (FFM) Fault
(2) Punch Unit, option
a. F1-32, Communication Faulty
b. F1-33, Punch Horizontal Registration Motor (FPSM) Fault
Cause/Trouble section
Procedure
Check
Result
Remedy
Finisher controller PCB, Host machine 
DC controller PCB
1
Turn off and then on the host machine. Is the problem 
corrected?
YES
End.
Wiring
2
Is the wiring between the finisher controller PCB and the DC 
controller PCB of the host machine normal?
NO
Correct the wring.
Finisher controller PCB, Host machine 
DC controller PCB
3
Try replacing the finisher controller PCB and the host 
machine DC controller PCB. Is the problem corrected?
YES
End.
Cause/Trouble section
Procedure
Check
Result
Remedy
Finisher controller PCB
1
Turn off and then on the host machine. Is the problem 
corrected?
YES
End.
NO
Replace the finisher controller 
PCB.
Cause/Trouble section
Procedure
Check
Result
Remedy
Finisher controller PCB, Host machine 
DC controller PCB
1
Turn off and then on the host machine. Is the problem 
corrected?
YES
End.
Wiring
2
Is the wiring between the finisher controller PCB and the 
host machine DC controller PCB normal?
NO
Correct the wiring.
Power supply
3
Measure the voltage between CN1-1 (+) and CN1-3 (-)/CN2-
1 (+) and CN2-3 (-) on the finisher controller PCB. Is it 24 
VDC?
YES
Replace the finisher controller 
PCB.
NO
Replace the host machine 
DC controller PCB.
Cause/Trouble section
Procedure
Check
Result
Remedy
Bookbinding roller home position 
sensor (FFRHPD)
1
Check the bookbinding roller home position sensor 
(FFRHPD). 
Is it normal?
NO
Replace the sensor.
Wiring
2
Is the wiring between the finisher controller PCB and the 
feed motor (FFM) normal?
NO
Correct the wiring.
Feed roller
3
Try turning the stack feed roller (upper) shaft by hand. 
Does the stack feed roller (upper) move up/down normally?
NO
Correct the mechanical 
system.
Feed motor (FFM), Finisher controller 
PCB
4
Try replacing the feed motor (FFM). Is the problem 
corrected?
YES
End.
NO
Replace the finisher controller 
PCB.
Cause/Trouble section
Procedure
Check
Result
Remedy
Finisher controller PCB, Punch 
controller PCB
1
Turn off and the on the host machine. Is the problem 
corrected?
YES
End.
Wiring
2
Is the wiring between the finisher controller PCB and the 
punch controller PCB normal?
NO
Correct the wiring.
Power supply
3
Measure the voltage between CN14-5 (+) and CN14-3 (-) on 
the finisher controller PCB. Is it 24 VDC?
NO
Replace the finisher controller 
PCB.
YES
Replace the punch controller 
PCB.
Cause/Trouble section
Procedure
Check
Result
Remedy
Punch horizontal registration home 
position sensor (FPSHPD)
1
Check the punch horizontal registration home position 
sensor (FPSHPD). 
Is the sensor normal?
NO
Replace the sensor.
Wiring
2
Is the wiring between the finisher controller PCB and the 
punch horizontal registration home position sensor 
(FPSHPD) normal?
NO
Correct the wiring.
Horizontal registration mechanism, 
punch horizontal registration motor 
(FPSM)
3
Is there a fault in the horizontal registration mechanism?
YES
Correct the horizontal 
registration mechanism.
NO
Replace the punch horizontal 
registration motor (FPNM).
Punch controller PCB, Finisher 
controller PCB
4
Try replacing the punch controller PCB. Is the problem 
corrected?
YES
End.
NO
Replace the finisher 
controller PCB.
MX-FNX2/AR-PN1/MX-RBX1  SELF DIAG MESSAGE AND TROUBLE CODE  9 – 7
c. F1-34, Punch Motor (FPNM) Fault
d. F1-35, Punch Horizontal Registration Home Position Sensor (FPSHPD) Fault
e. F1-38, Punch Unit Back-UP RAM Fault
f. F1-39, Waste Full Sensor Fault
g. F1-40, Punch Unit Power Supply Fault
Cause/Trouble section
Procedure
Check
Result
Remedy
Punch home position sensor (FPHPD)
1
Check the punch home position sensor (FPHPD).
Is the sensor normal?
NO
Replace the sensor.
Punch motor lock sensor (FPMCK)
2
Check the punch motor lock sensor (FPMCK). Is the sensor 
normal?
NO
Replace the sensor.
Wiring
3
Is the wiring between the finisher controller PCB and the 
sensor normal?
NO
Correct the wiring.
Punch mechanism, Punch motor 
(FPNM)
4
Is there a fault in the punch mechanism?
YES
Correct the punch 
mechanism.
NO
Replace the punch motor 
(FPNM).
Punch controller PCB, Finisher 
controller PCB
5
Try replacing the punch controller PCB. Is the problem 
corrected?
YES
End.
NO
Replace the fisher controller 
PCB.
Cause/Trouble section
Procedure
Check
Result
Remedy
Horizontal registration sensor 
(photosensor PCB/LED PCB)
1
Check the horizontal registration sensor. Is the sensor 
normal?
NO
Replace the sensor.
Wiring
2
Check the punch motor lock sensor (FPMCK).
Is the sensor normal?
NO
Correct the wiring.
Punch controller PCB, Finisher 
controller PCB
3
Try replacing the punch controller PCB. Is the problem 
correct?
YES
End.
NO
Replace the finisher 
controller PCB.
Cause/Trouble section
Procedure
Check
Result
Remedy
Punch controller PCB
1
Turn off and the on the host machine. Is the problem 
corrected?
YES
End.
NO
Replace the punch controller 
PCB.
Cause/Trouble section
Procedure
Check
Result
Remedy
Waste full Sensor (waste full 
photosensor PCB/waste full LED PCB)
1
Check the waste full sensor. Is the sensor normal?
NO
Replace the sensor.
Wiring
2
Is the wiring between the punch controller PCB and the 
waste full sensor normal?
NO
Correct the wiring.
Punch controller PCB, Finisher 
controller PCB
3
Try replacing the punch controller PCB. Is the problem 
corrected?
YES
End.
NO
Replace the finisher controller 
PCB.
Cause/Trouble section
Procedure
Check
Result
Remedy
Finisher controller PCB, Host machine 
DC controller PCB
1
Turn off and then off the host machine. Is the problem 
corrected?
YES
End.
Wiring
2
Is the wiring between the finisher controller PCB and the 
punch controller PCB normal?
NO
Correct the wiring.
Power supply
3
Measure the voltage between CN14-5 (+) and CN4-3 (-) on 
the finisher controller PCB. Is it 24 VDC?
YES
Replace the punch controller 
PCB.
NO
Replace the finisher controller 
PCB.
MX-FNX2/AR-PN1/MX-RBX1  SELF DIAG MESSAGE AND TROUBLE CODE  9 – 8
(3) Paper pass (Paper transport section)
a. The transport motor (FFM) does not operate.
b. A fan motor alarm is generated.
c. A paper jam occurs in the entry port of the interface
transport unit.
Case 1
Cause
Connector pin loose connection
Check & 
Remedy
Check connection of the connectors. 
(CN309, CN307, CN306, CN303, CN301, CN21)
Case 2
Cause
Harness disconnection
Check & 
Remedy
Execute the conduction test between connectors. If 
disconnection is found, replace the defective 
connectors. 
Case 3
Cause
Motor lead breaking
Check & 
Remedy
Execute the conduction test of coil. If disconnection 
is found, replace the coil. 
Case 4
Cause
Control PWB trouble
Check & 
Remedy
If the motor does not operate in the motor 
individual operation mode, replace the control 
PWB. 
Case 1
Cause
Pinching
Check & 
Remedy
Visually check the suction port and remove foreign 
materials.
Case 2
Cause
Connector pin loose connection
Check & 
Remedy
Check connection of the connectors. 
(CN313, CN307, CN306, CN304, CN301, CN22, 
CN23)
Case 3
Cause
Harness disconnection
Check & 
Remedy
Execute the conduction test between connectors. If 
disconnection is found, replace the defective 
connectors. 
Case 4
Cause
Motor trouble
Check & 
Remedy
If the motor does not operate in the motor 
individual operation mode, replace the motor. 
Case 5
Cause
Control PWB trouble
Check & 
Remedy
If the motor does not operate in the motor 
individual operation mode, replace the control 
PWB. 
Case 1
Cause
Flapper solenoid connector pin loose connection
Check & 
Remedy
Check connection of the connectors. 
(CN312, CN307, CN306, CN304, CN301, CN22, 
CN23)
Case 2
Cause
Harness disconnection
Check & 
Remedy
Execute the conduction test between connectors. If 
disconnection is found, replace the defective 
connectors. 
Case 3
Cause
Flapper solenoid trouble
Check & 
Remedy
If there is no conduction between CN312 1 pin and 
2pin, replace the solenoid. 
Case 4
Cause
Control PWB trouble
Check & 
Remedy
If the flapper does not operate in the individual 
operation mode, replace the control PWB.
Case 1
Cause
Paper jam
Check & 
Remedy
Visually check to remove paper jam. 
Cause
Sensor connector pin loose connection
Check & 
Remedy
Check connection of the connectors. 
(CN310, CN311, CN307, CN306, CN304, CN301, 
CN22, CN23)
Case 2
Cause
Harness disconnection
Check & 
Remedy
Execute the conduction test between connectors. If 
disconnection is found, replace the defective 
connectors. 
Cause
Sensor trouble
Check & 
Remedy
Replace the sensor at the paper jam position. 
Case 3
Cause
Sensor flag operation trouble
Check & 
Remedy
Visually check the sensor flag operation. If it is 
caught in the operation, replace the sensor flag. 
Case 4
Cause
Control PWB trouble
Check & 
Remedy
If the sensor level varies but the phenomenon 
remains when each sensor is turned ON/OFF, 
replace the control PWB. 
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