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MX-FN11  SELF DIAG MESSAGE AND TROUBLE CODE  9 – 1

MX-FN11

Service Manual

 

Stapler absent

The stapler is not set.

Monitoring at all times

Normal operation will continue; however, 
operation is subject to instructions from the 
host machine.

Replace the staple cartridge; 
or set it correctly.

Activated stapler 
safety interlock

The stapler safety interlock is 
activated.

When the staple 
operation is started.

Operation of staple motor (FFSM) is 
prohibited.

Delivery stack sheets without 
stapling.

Stack tray 
overstacking

The number of sheets deposited 
on the delivery tray has exceeded 
the limit imposed on the tray.

When an extra sheet 
is discharged.

Normal operation will continue.

Remove the sheets from the 
delivery tray.

Stapler jam

Staple edge cannot be aligned 
correctly.

During staple edge 
aligning operation

Normal operation will continue; however, 
operation is subject to instructions from the 
host machine.

Replace the staple cartridge, 
and execute the staple edge 
alignment again.

Waste case full

The amount of waste paper in the 
waste case has reached the limit.

During punching

Normal operation will continue.

Remove the waste paper 
from the waste case.

Excess waste

The amount of waste paper in the 
waste case has exceeded the 
limit.

During punching

Punching is prohibited.

Remove the waste paper 
from the waste case.

MX-FN11  SELF DIAG MESSAGE AND TROUBLE CODE  9 – 2

The CPU on the machine’s finisher control PCB is equipped with a
mechanism to check the machine condition as needed; when it
detects a fault, the machine sends the trouble contents to the host
machine in the form of a code and a detail code.

 

 

 

 

 

 

 

 

 

 

Trouble content

Communication line test error when turning on the 
power or after canceling an exclusion simulation. 
Communication error with the finisher

Section

PCU

Case 1

Cause

Malfunction due to electrical noises

Check 
and 
Remedy

Turn OFF/ON the power to cancel.

Case 2

Cause

PCU finisher connector or harness connection error 
or disconnection

Check 
and 
Remedy

Check the connector and harness in the 
communication line.

Case 3

Cause

Finisher control PWB trouble

Check 
and 
Remedy

Replace the finisher control PWB.

Case 4

Cause

Control (PCU) PWB trouble

Check 
and 
Remedy

Replace the PCU PWB.

Trouble content

Oscillation motor operation abnormality

Section

PCU

Case 1

Cause

Motor lock, motor RPM abnormality, motor 
overvoltage, finisher control PWB trouble

Check 
and 
Remedy

Use SIM3-3 to check the operation of the motor 
(FSWM).
Replace the finisher control PWB.

Trouble content

Stapler shift motor operation abnormality

Section

PCU

Case 1

Cause

Motor lock, motor RPM abnormality, motor 
overvoltage, finisher control PWB trouble

Check 
and 
Remedy

Use SIM3-3 to check the operation of the staple 
motor (FSM).
Replace the finisher control PWB.

Trouble content

Staple operation trouble

Section

PCU

Case 1

Cause

Motor lock, motor RPM abnormality, motor 
overvoltage, finisher control PWB trouble

Check 
and 
Remedy

Use SIM3-3 to check the operation of the staple 
motor (FFSM).
Replace the finisher control PWB.

Trouble content

Lift motor trouble

Section

PCU

Case 1

Cause

Motor lock, motor RPM abnormality, motor 
overvoltage, finisher control PWB trouble

Check 
and 
Remedy

Use SIM3-3 to check the operation of the tray lift 
motor (FTLM).
Replace the finisher control PWB.

Case 2

Cause

Interlock switch (black bar-shape switch under the 
upper tray) operation

Check 
and 
Remedy

Check that there is nothing on the interlock switch.
If there is, remove it.

Trouble content

Pre-alignment motor trouble

Section

PCU

Case 1

Cause

Motor lock, motor RPM abnormality, motor 
overvoltage, finisher control PWB trouble

Check 
and 
Remedy

Use SIM3-3 to check the operation of the 
prealignment motor (FFJM).
Replace the finisher control PWB.

Trouble content

After-alignment motor trouble

Section

PCU

Case 1

Cause

Motor lock, motor RPM abnormality, motor 
overvoltage, finisher control PWB trouble

Check 
and 
Remedy

Use SIM3-3 to check the operation of the 
afteralignment motor (FRJM).
Replace the finisher control PWB.

Trouble content

Interface transport fan motor trouble

Section

PCU

Case 1

Cause

Motor lock, motor RPM abnormality, motor 
overvoltage, finisher control PWB trouble

Check 
and 
Remedy

Use SIM3-3 to check the operation of the fan motor 
(FJFM).
Replace the finisher control PWB.

Trouble content

Rear edge assist motor operation trouble

Section

PCU

Case 1

Cause

Motor trouble, HP sensor trouble, harness 
disconnection, finisher control PWB trouble

Check 
and 
Remedy

Use SIM3-3 to check the operation of the rear edge 
assist motor.
Replace the finisher control PWB.

Trouble content

Shutter operation trouble

Section

PCU

Case 1

Cause

Motor trouble, HP sensor trouble, harness 
disconnection, finisher control PWB trouble

Check 
and 
Remedy

Use SIM3-3 to check the operation of the bundle 
paper exit motor.
Replace the finisher control PWB.

MX-FN11  SELF DIAG MESSAGE AND TROUBLE CODE  9 – 3

 

 

 

 

 

 

Trouble content

Detection of finisher incompatible with MX-4100FN/
5000FN

Section

PCU

Case 1

Cause

Connection of the AR-F13, etc. which is incompatible 
with MX-4100FN/5000FN is detected.

Check 
and 
Remedy

Connect the MX-FN11

Trouble content

Finisher and punch unit communication error

Section

PCU

Case 1

Cause

Malfunction due to electrical noises

Check 
and 
Remedy

Cancel by turning OFF/ON the power.

Case 2

Cause

Connector/harness connection error or disconnection 
between the finisher and the punch unit

Check 
and 
Remedy

Check the connector and the harness in the 
communication line.

Case 3

Cause

Finisher control PWB trouble

Check 
and 
Remedy

Replace the finisher control PWB.

Case 4

Cause

Control (PCU) PWB trouble

Check 
and 
Remedy

Replace the control (PCU) PWB

Trouble content

Punch shift motor operation abnormality

Section

PCU

Case 1

Cause

Motor lock, motor RPM abnormality, motor 
overvoltage, finisher control PWB trouble, punch 
control PWB trouble

Check 
and 
Remedy

Use SIM3-3 to check the operation of the punch shift 
motor (FPSM).
Replace the finisher punch unit (Replace the punch 
control PWB.).

Trouble content

Punch motor operation abnormality

Section

PCU

Case 1

Cause

Motor lock, motor RPM abnormality, motor 
overvoltage, finisher control PWB trouble, punch 
control PWB trouble

Check 
and 
Remedy

Use SIM3-3 to check the operation of the punch 
motor (FPNW).
Replace the finisher punch unit (Replace the punch 
control PWB.).

Trouble content

Backup RAM data garbled

Section

PCU

Case 1

Cause

Finisher control PWB trouble, malfunction due to 
electrical noises

Check 
and 
Remedy

Replace the finisher control PWB.

Trouble content

Punch unit backup RAM data garbled

Section

PCU

Case 1

Cause

Punch control PWB trouble, malfunction due to 
electrical noises

Check 
and 
Remedy

Replace the punch control PWB.

MX-FN11  ELECTRICAL SECTION  10 – 1

MX-FN11

Service Manual

 

FSM

FBES

FSWM

FASM

FSHC

FBR

RS

FFD

RRS

FPDD

FSLD2

DC24V5

FSD

FSTD

FSJOGD

FASHPD

FSTHPD

FFM

FAM

FFJM

FRJM

DC24V3

DC24V1 DC5V DC3V

CPU

Expansion

port

Expansion

port

DAC

FSAD

FSWOPD

FCCD

FBED1

FED

FAED2
FAED3

FFJHPD

FRJHPD

DC24V5

DC24V4

FSHPD

FAED1

FSWHPD

FSTPD

EEPROM

Control section

FBED2

FSLD1

FIN

RRS

FFSM

Txd

Rxd

DTR

DSR

Reset

DC24V

DC24V3

DC24V2

FFDD

DC24V3

FAO

RC

DC24V3

FTL

M1

FTL

M2

FJF

M
FJPID

DC24V2

DC24V1

FJPM

FIN

RPS

FPUC

FJPOD
FJPDD

FFANLK

FAED23

F24V

FPSW

1-3

FDSW

1-8

FCD

FSHTD

FCD

DC24V4

FCD

FAED21
FAED22

FSSUC

FSSUC

Finisher

Punch communication circuit

Saddle communication circuit

Paper pass unit

Main unit or inserter

Communication

circuit

Reset circuit

Power supply control circuit

SW

make/brake

detection

circuit

Driver

circuit

Driver

circuit

Driver

circuit

Driver

circuit

Sensor

input

circuit

Sensor

input

circuit