Sharp AR-M351U / AR-M451U (serv.man19) Service Manual ▷ View online
AR-M351U/M451U, AR-M355U/M455U TROUBLE CODES 11 - 4
E7
06
Content
Decode error trouble
Detail
A decode error occurs during making of
an image.
an image.
Cause
Data error during input from PCI to PM.
PM trouble
Data error during image compression/
transfer.
ICU PWB abnormality
PM trouble
Data error during image compression/
transfer.
ICU PWB abnormality
Check and
remedy
remedy
Check insertion of the PWB. (PCI bus)
If the error occurred in a FAX job,
check installation of the FAX PWB.
For the other cases, check the ICU
PWB.
Replace the ICU PWB.
If the error occurred in a FAX job,
check installation of the FAX PWB.
For the other cases, check the ICU
PWB.
Replace the ICU PWB.
10
Content
Shading trouble (Black correction)
Details
CCD black scan level abnormality
when the copy lamp is off.
when the copy lamp is off.
Cause
Abnormal installation of flat cable to
CCD unit.
CCD unit abnormality
Scanner PWB abnormality
CCD unit.
CCD unit abnormality
Scanner PWB abnormality
Check &
Remedy
Remedy
Check installation of CCD unit flat
cable.
Check CCD unit.
Check scanner PWB.
cable.
Check CCD unit.
Check scanner PWB.
11
Content
Shading trouble
(White correction all
pixel adjustment)
Details
CCD white reference plate scan level
abnormality when the copy lamp is ON.
abnormality when the copy lamp is ON.
Cause
Abnormal installation of flat cable to
CCD unit.
Dirt on mirror, lens, white reference
plate
Copy lamp lighting abnormality
Abnormal installation of CCD unit
CCD unit abnormality
Scanner PWB abnormality
CCD unit.
Dirt on mirror, lens, white reference
plate
Copy lamp lighting abnormality
Abnormal installation of CCD unit
CCD unit abnormality
Scanner PWB abnormality
Check &
Remedy
Remedy
Clean mirror, lens, and white reference
plate.
Check copy lamp light quantity (SIM 5-
3) and lighting.
Check CCD unit.
Check scanner PWB.
plate.
Check copy lamp light quantity (SIM 5-
3) and lighting.
Check CCD unit.
Check scanner PWB.
14
Content
CCD communication trouble
Details
Communication trouble (clock sync)
between scanner PWB and CCD-ASIC
between scanner PWB and CCD-ASIC
Cause
Abnormal installation of harness to
CCD unit
CCD unit abnormality
Scanner PWB abnormality
CCD unit
CCD unit abnormality
Scanner PWB abnormality
Check &
Remedy
Remedy
Check CCD unit harness.
Check CCD unit.
Check scanner PWB.
Check CCD unit.
Check scanner PWB.
17
Content
SPF scanning position adjustment
trouble (Detected only when executing
an adjustment SIM.)
trouble (Detected only when executing
an adjustment SIM.)
Details
The black Mylar which serves as the
reference of the SPF scanning position
is not detected.
reference of the SPF scanning position
is not detected.
Cause
Black Mylar installing failure on the
SPF side
SPF side
Check &
Remedy
Remedy
Check the SPF black Mylar.
MAIN SUB
Details
E7
50
Content
LSU connection trouble
Detail
An LSU which does not conform to the
machine is installed.
machine is installed.
Cause
LSU connection trouble
PCU PWB trouble
LSU trouble
PCU PWB trouble
LSU trouble
Check and
remedy
remedy
Check LSU PWB. Check PCU PWB.
Check connection of the connector and
the harness between PCU and LSU.
Check connection of the connector and
the harness between PCU and LSU.
60
Content
Controller skating trouble
Detail
Occurrence of an error in controller
skating check
skating check
Cause
Discrepancy in the combination of the
controller PWB and the ROM
controller PWB and the ROM
Check and
remedy
remedy
Check the controller PWB.
Check the combination of the controller
PWB and the ROM.
Check the combination of the controller
PWB and the ROM.
80
Content
Communication trouble (ICU detection)
between ICU and scanner
between ICU and scanner
Details
Communication establishment error/
Fleming/Parity/Protocol error
Fleming/Parity/Protocol error
Cause
Defective connection of slave unit PWB
connector
Defective harness between slave unit
PWB and ICU PWB
Slave unit PWB mother board
connector pin breakage
connector
Defective harness between slave unit
PWB and ICU PWB
Slave unit PWB mother board
connector pin breakage
Check &
Remedy
Remedy
Check connector and harness of slave
unit PWB and ICU PWB.
Check grounding of machine.
unit PWB and ICU PWB.
Check grounding of machine.
90
Content
Communication trouble (ICU detection)
between ICU and PCU
between ICU and PCU
Details
Communication establishment error/
Fleming/Parity/Protocol error
Fleming/Parity/Protocol error
Cause
Defective connection of slave unit PWB
connector
Defective harness between slave unit
PWB and ICU PWB
Slave unit PWB mother board
connector pin breakage
connector
Defective harness between slave unit
PWB and ICU PWB
Slave unit PWB mother board
connector pin breakage
Check &
Remedy
Remedy
Check connector and harness of slave
unit PWB and ICU PWB.
Check grounding of machine.
unit PWB and ICU PWB.
Check grounding of machine.
F1
00
Content
Finisher communication trouble
Detail
Communication cable test error after
turning on the power or exiting from
SIM.
Communication error with the finisher
turning on the power or exiting from
SIM.
Communication error with the finisher
Cause
Improper connection or disconnection
of connectors and harness between the
machine and the finisher.
Finisher control PWB trouble
Control PWB (PCU) trouble
Malfunction by noises
of connectors and harness between the
machine and the finisher.
Finisher control PWB trouble
Control PWB (PCU) trouble
Malfunction by noises
Check and
remedy
remedy
Canceled by turning OFF/ON the
power.
Check connectors and harness in the
communication line.
Replace the finisher control PWB or
PCU PWB.
power.
Check connectors and harness in the
communication line.
Replace the finisher control PWB or
PCU PWB.
MAIN SUB
Details
AR-M351U/M451U, AR-M355U/M455U TROUBLE CODES 11 - 5
F1
00
Content
Mail-bin stacker communication trouble
Detail
Communication cable test error after
turning on the power or exiting from
SIM.
Communication error with the Mail-bin
stacker.
turning on the power or exiting from
SIM.
Communication error with the Mail-bin
stacker.
Cause
Improper connection or disconnection
of connector and harness between the
machine and the Mail-bin stacker.
Mail-bin stacker control PWB trouble
Control PWB (PCU) trouble
Malfunction by noises
of connector and harness between the
machine and the Mail-bin stacker.
Mail-bin stacker control PWB trouble
Control PWB (PCU) trouble
Malfunction by noises
Check and
remedy
remedy
Canceled by turning OFF/ON the
power.
Check harness and connector in the
communication line.
Replace the Mail-bin stacker PWB or
PCU PWB.
power.
Check harness and connector in the
communication line.
Replace the Mail-bin stacker PWB or
PCU PWB.
02
Content
Finisher transport motor abnormality
Detail
Transport motor drive trouble
Cause
Motor lock
Drive abnormality
Defective connection or disconnection
between the PWB and the motor.
Motor RPM abnormality
Overcurrent to the motor
Finisher control PWB trouble
Drive abnormality
Defective connection or disconnection
between the PWB and the motor.
Motor RPM abnormality
Overcurrent to the motor
Finisher control PWB trouble
Check and
remedy
remedy
Use SIM 3-3 to check the transport
motor operation.
motor operation.
02
Content
Mail-bin stacker transport motor
abnormality
abnormality
Detail
Transport motor trouble
Cause
Motor lock
Drive abnormality
Defective connection or disconnection
between the PWB and the motor.
Drive abnormality
Defective connection or disconnection
between the PWB and the motor.
Motor rpm abnormality
Overcurrent to the motor
Mail-bin stacker control PWB trouble
Overcurrent to the motor
Mail-bin stacker control PWB trouble
Check and
remedy
remedy
Use SIM3-21 to check the transport
motor operation.
motor operation.
03
Content
Console finisher paddle motor trouble
Detail
Paddle motor operation abnormality
Cause
Motor lock
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Check and
remedy
remedy
Use SIM3-3 to check the motor
operation.
operation.
06
Content
Console finisher slide motor trouble
Detail
Slide motor operation abnormality
Cause
Motor lock
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Check and
remedy
remedy
Use SIM3-3 to check the motor
operation.
operation.
MAIN SUB
Details
F1
08
Content
Finisher staple shift motor trouble
Detail
Staple motor drive trouble
Cause
Motor lock
Drive abnormality
Defective connection or disconnection
between the PWB and the motor.
Home position sensor abnormality
Motor rpm abnormality
Finisher control PWB trouble
Drive abnormality
Defective connection or disconnection
between the PWB and the motor.
Home position sensor abnormality
Motor rpm abnormality
Finisher control PWB trouble
Check and
remedy
remedy
Use SIM3-3 to check operations of the
staple motor.
staple motor.
10
Content
Finisher stapler motor trouble
Detail
Stapler motor operation abnormality
Cause
Motor lock
Defective connection or disconnection
between the PWB and the motor.
Home position sensor abnormality
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Defective connection or disconnection
between the PWB and the motor.
Home position sensor abnormality
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Check and
remedy
remedy
Use SIM3-3 to check the motor
operation.
operation.
10
Content
Console finisher stapler motor trouble
Detail
Stapler motor operation abnormality
Cause
Motor lock
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Check and
remedy
remedy
Use SIM3-3 to check the motor
operation.
operation.
11
Content
Finisher bundle exit motor trouble
Detail
Bundle exit motor operation
abnormality
abnormality
Cause
Motor lock
Drive abnormality
Defective connection or disconnection
between the PWB and the motor.
Home position sensor abnormality
Motor rpm abnormality
Console finisher control PWB trouble
Drive abnormality
Defective connection or disconnection
between the PWB and the motor.
Home position sensor abnormality
Motor rpm abnormality
Console finisher control PWB trouble
Check and
remedy
remedy
Use SIM 3-3 to check the bundle exit
motor operation and the paddle
solenoid operation, or use SIM 3-2 to
check the boomerang rotations sensor.
motor operation and the paddle
solenoid operation, or use SIM 3-2 to
check the boomerang rotations sensor.
11
Content
Console finisher bundle exit motor
trouble
trouble
Detail
Bundle exit motor operation
abnormality
abnormality
Cause
Motor lock
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Check and
remedy
remedy
Use SIM3-3 to check the motor
operation.
operation.
12
Content
Mail-bin stacker gate trouble
Detail
Gate operation abnormality
Cause
Gate lock
Defective connection or disconnection
between the PWB and the solenoid.
Mail-bin stacker control PWB trouble
Defective connection or disconnection
between the PWB and the solenoid.
Mail-bin stacker control PWB trouble
Check and
remedy
remedy
Use SIM3-21 to check the transport
gate operation.
gate operation.
MAIN SUB
Details
AR-M351U/M451U, AR-M355U/M455U TROUBLE CODES 11 - 6
F1
15
Content
Finisher lift motor trouble
Detail
Lift motor operation abnormality
Cause
Motor lock
Motor rpm abnormality
Overcurrent to the motor
Finisher control PWB trouble
Motor rpm abnormality
Overcurrent to the motor
Finisher control PWB trouble
Check and
remedy
remedy
Use SIM3-3 to check the lift motor
operation.
operation.
15
Content
Console finisher lift motor trouble
Detail
Lift motor operation abnormality
Cause
Motor lock
Drive abnormality
Defective connection or disconnection
between the PWB and the motor.
Upper/lower limit sensor trouble
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Drive abnormality
Defective connection or disconnection
between the PWB and the motor.
Upper/lower limit sensor trouble
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Check and
remedy
remedy
Use SIM3-3 to check the motor
operation.
operation.
19
Content
Finisher front alignment motor trouble
Detail
Front alignment motor operation
abnormality
abnormality
Cause
Motor lock
Drive abnormality
Defective connection or disconnection
between the PWB and the motor.
Home position sensor abnormality
Motor rpm abnormality
Finisher control PWB trouble
Drive abnormality
Defective connection or disconnection
between the PWB and the motor.
Home position sensor abnormality
Motor rpm abnormality
Finisher control PWB trouble
Check and
remedy
remedy
Use SIM3-3 to check the motor
operation.
operation.
19
Content
Console finisher front alignment motor
trouble
trouble
Detail
Front alignment motor operation
abnormality
abnormality
Cause
Motor lock
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Check and
remedy
remedy
Use SIM3-3 to check the motor
operation.
operation.
20
Content
Finisher rear alignment motor trouble
Detail
Rear alignment motor operation
abnormality
abnormality
Cause
Motor lock
Drive abnormality
Defective connection or disconnection
between the PWB and the motor.
Home position sensor abnormality
Motor rpm abnormality
Finisher control PWB trouble
Drive abnormality
Defective connection or disconnection
between the PWB and the motor.
Home position sensor abnormality
Motor rpm abnormality
Finisher control PWB trouble
Check and
remedy
remedy
Use SIM3-3 to check the motor
operation.
operation.
20
Content
Console finisher rear alignment motor
trouble
trouble
Detail
Rear alignment motor operation
abnormality
abnormality
Cause
Motor lock
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Check and
remedy
remedy
Use SIM3-3 to check the motor
operation.
operation.
MAIN SUB
Details
F1
30
Content
Console finisher communication
trouble
trouble
Detail
Communication cable test error after
turning on the power or exiting from
SIM.
Communication error with the console
finisher
turning on the power or exiting from
SIM.
Communication error with the console
finisher
Cause
Improper connection or disconnection
of connector and harness between the
machine and the console finisher.
Console finisher control PWB trouble
Control PWB (PCU) trouble
Malfunction by noises
of connector and harness between the
machine and the console finisher.
Console finisher control PWB trouble
Control PWB (PCU) trouble
Malfunction by noises
Check and
remedy
remedy
Canceled by turning OFF/ON the
power.
Check connectors and harness in the
communication line.
Replace the console finisher control
PWB or PCU PWB.
power.
Check connectors and harness in the
communication line.
Replace the console finisher control
PWB or PCU PWB.
31
Content
Console finisher fold sensor trouble
Detail
Sensor input value abnormality
Cause
Sensor breakage
harness breakage
Console finisher control PWB trouble
harness breakage
Console finisher control PWB trouble
Check and
remedy
remedy
Use SIM3-2 to check the sensor
operation.
operation.
32
Content
Communication trouble between the
console finisher and the punch unit.
console finisher and the punch unit.
Detail
Communication err between the
console finisher and the punch unit.
console finisher and the punch unit.
Cause
Improper connection or disconnection
of connector and harness between the
console finisher and the punch unit.
Console finisher control PWB trouble
Control PWB (PCU) trouble
Malfunction by noise
of connector and harness between the
console finisher and the punch unit.
Console finisher control PWB trouble
Control PWB (PCU) trouble
Malfunction by noise
Check and
remedy
remedy
Canceled by turning OFF/ON the
power.
Check connectors and harness in the
communication line.
Replace the console finisher control
PWB.
power.
Check connectors and harness in the
communication line.
Replace the console finisher control
PWB.
33
Content
Console finisher punch side
registration motor trouble
registration motor trouble
Detail
Punch side registration motor operation
abnormality
abnormality
Cause
Motor lock
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Check and
remedy
remedy
Use SIM3-3 to check the motor
operation.
operation.
34
Content
Console finisher punch motor trouble
Detail
Punch motor operation abnormality
Cause
Motor lock
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Check and
remedy
remedy
Use SIM3-3 to check the motor
operation.
operation.
35
Content
Console finisher punch side
registration sensor trouble
registration sensor trouble
Detail
Sensor input value abnormality
Cause
Sensor breakage
Harness disconnection
Console finisher control PWB trouble
Harness disconnection
Console finisher control PWB trouble
Check and
remedy
remedy
Use SIM3-2 to check the sensor
operation.
operation.
MAIN SUB
Details
AR-M351U/M451U, AR-M355U/M455U TROUBLE CODES 11 - 7
F1
36
Content
Console finisher punch timing sensor
trouble
trouble
Detail
Sensor input value abnormality
Cause
Sensor breakage
Harness disconnection
Console finisher control PWB trouble
Harness disconnection
Console finisher control PWB trouble
Check and
remedy
remedy
Use SIM3-2 to check the sensor
operation.
operation.
37
Content
Console finisher backup RAM trouble
Detail
Backup RAM contents are disturbed.
Cause
Console finisher control PWB trouble
Malfunction by noise
Malfunction by noise
Check and
remedy
remedy
Replace the console finisher control
PWB.
PWB.
38
Content
Console finisher punch backup RAM
trouble
trouble
Detail
Punch unit backup RAM contents are
disturbed.
disturbed.
Cause
Punch control PWB trouble
Malfunction by noise
Malfunction by noise
Check and
remedy
remedy
Replace the punch control PWB.
39
Content
Console finisher punch dust sensor
trouble
trouble
Detail
Punch dust sensor detection trouble
Cause
When the punch dust sensor is not
normally detected.
normally detected.
Check and
remedy
remedy
Sensor breakage
Harness disconnection
Punch control PWB trouble
Harness disconnection
Punch control PWB trouble
40
Content
Console finisher punch power
interruption trouble
interruption trouble
Detail
When power interruption of the punch
unit is detected
unit is detected
Cause
Though 24V is supplied to the punch
unit, the punch unit detects power
interruption.
unit, the punch unit detects power
interruption.
Check and
remedy
remedy
Harness disconnection
Punch control PWB trouble
Punch control PWB trouble
80
Content
Finisher power abnormality
Detail
The 24V power is not supplied to the
finisher PWB.
finisher PWB.
Cause
Improper connection or disconnection
of connector and harness
Finisher control PWB trouble
Power unit trouble
of connector and harness
Finisher control PWB trouble
Power unit trouble
Check and
remedy
remedy
Use SIM3-2 to check the sensor.
80
Content
Mail-bin stacker power abnormality
Detail
The 24V power is not supplied to the
Mail-bin stacker PWB.
Mail-bin stacker PWB.
Cause
Improper connection or disconnection
of connector and harness
Mail-bin stacker control PWB trouble
Power unit trouble
of connector and harness
Mail-bin stacker control PWB trouble
Power unit trouble
Check and
remedy
remedy
Use SIM3-20 to check the sensor
operation.
operation.
81
Content
Console finisher transport motor
abnormality
abnormality
Detail
Transport motor trouble
Cause
Motor lock
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Motor rpm abnormality
Overcurrent to the motor
Console finisher control PWB trouble
Check and
remedy
remedy
Use SIM3-3 to check the motor
operation.
operation.
MAIN SUB
Details
F1
87
Content
Finisher staple rotation motor trouble
Detail
Front staple rotation motor trouble
Cause
Motor lock
Drive abnormality
Defective connection or disconnection
between the PWB and the motor.
Home position sensor abnormality
Motor rpm abnormality
Overcurrent to the motor
Finisher control PWB trouble
Drive abnormality
Defective connection or disconnection
between the PWB and the motor.
Home position sensor abnormality
Motor rpm abnormality
Overcurrent to the motor
Finisher control PWB trouble
Check and
remedy
remedy
Use SIM3-3 to check the motor
operation.
operation.
F2
00
Content
Toner control sensor open/sensor
trouble
trouble
Detail
Toner control sensor output open
Cause
Connector harness trouble
Connector disconnection
Sensor trouble
Connector disconnection
Sensor trouble
Check and
remedy
remedy
Check connection of the toner control
sensor.
Check connection of connector and
harness to the main PWB.
Check for disconnection of harness.
Replace the sensor.
sensor.
Check connection of connector and
harness to the main PWB.
Check for disconnection of harness.
Replace the sensor.
02
Content
Toner supply abnormality
Detail
Toner control sensor output value
becomes under-toner too earlier.
becomes under-toner too earlier.
Cause
Connector harness trouble
Toner concentration sensor trouble
Toner cartridge trouble
Toner concentration sensor trouble
Toner cartridge trouble
Check and
remedy
remedy
Check connection of the connector in
the toner motor section.
Check connection of connector and
harness to the main PWB.
Check for disconnection of harness.
Toner concentration sensor output
check SIM25-1.
Replace the toner cartridge.
the toner motor section.
Check connection of connector and
harness to the main PWB.
Check for disconnection of harness.
Toner concentration sensor output
check SIM25-1.
Replace the toner cartridge.
04
Content
Improper cartridge (life cycle error, etc.)
Detail
An improper process cartridge is
inserted.
inserted.
Cause
IC chip trouble
Improper cartridge
Improper cartridge
Check and
remedy
remedy
Insert a proper cartridge.
05
Content
CRUM error
Detail
Communication with IC chip cannot be
made.
made.
Cause
IC chip trouble
IC chip contact failure
Improper cartridge
IC chip contact failure
Improper cartridge
Check and
remedy
remedy
Insert a proper cartridge.
Is the cartridge installed properly?
Is the cartridge installed properly?
39
Content
Process thermistor trouble
Detail
Output value abnormality of the
temperature sensor of temperature/
humidity sensor
temperature sensor of temperature/
humidity sensor
Cause
Temperature/humidity sensor
abnormality
Temperature/humidity sensor harness
connection failure
PCU PWB trouble
abnormality
Temperature/humidity sensor harness
connection failure
PCU PWB trouble
Check and
remedy
remedy
Check connection of the harness and
the connector of the temperature/
humidity sensor.
Replace the temperature/humidity
sensor.
Check PCU PWB.
the connector of the temperature/
humidity sensor.
Replace the temperature/humidity
sensor.
Check PCU PWB.
MAIN SUB
Details