Sharp AR-M276 (serv.man6) Service Manual ▷ View online
AR-M236/M276/M237/M277 TROUBLE CODE LIST 9 - 1
[9]
TROUBLE CODE LIST
1. List
Trouble code
Trouble contents
Trouble
detection
Main
code
code
Sub
code
A0
01
Security incompatibility error
E1
00
IMC board communication trouble
MCU
10
IMC board trouble
11
IMC ASIC error
12
IMC CODEC error
13
IMC board flash ROM error
14
IMC board Work RAM error
15
IMC board Page Memory error
16
IMC board image compression store
memory error
memory error
17
IMC board smoothing IC error
80
IMC PWB communication trouble
(protocol)
(protocol)
81
IMC PWB communication trouble (Parity)
82
IMC PWB communication trouble
(Overrun)
(Overrun)
84
IMC PWB communication trouble
(Framing)
(Framing)
88
IMC PWB communication trouble (Time-
out)
out)
E7
02
LSU trouble
10
Shading trouble (black correction)
11
Shading trouble (white correction)
12
Shading trouble
F1
00
Finisher communication trouble
FIN
01
Finisher jogger shift trouble
06
Finisher shift motor abnormality
08
Finisher staple shift motor trouble
11
Pusher motor trouble
15
Finisher elevator motor trouble
F2
02
Toner supply failure
04
Identification error
Model error
Type error
Destination error
Data abnormality
Misc error
Model error
Type error
Destination error
Data abnormality
Misc error
F5
02
Copy lamp lighting abnormality
F6
00
MCU-FAX communication trouble
MCU
10
FAX control PWB trouble
80
FAX control PWB communication trouble
(Protocol)
(Protocol)
81
FAX control PWB communication trouble
(Parity)
(Parity)
82
FAX control PWB communication trouble
(Over-run)
(Over-run)
84
FAX control PWB communication trouble
(Framing)
(Framing)
88
FAX control PWB communication trouble
(Timeout)
(Timeout)
99
Machine-FAX board language error
F9
00
MCU-PRT communication trouble
MCU
10
Printer PWB trouble
80
Printer PWB communication trouble
(Protocol)
(Protocol)
81
Printer PWB communication trouble
(Parity)
(Parity)
82
Printer PWB communication trouble
(Overrun)
(Overrun)
84
Printer PWB communication trouble
(Framing)
(Framing)
88
Printer PWB communication trouble
(Timeout)
(Timeout)
99
Machine-PCL board language error
H2
00
Main heater lamp thermistor open hard
detection
detection
01
Sub heater lamp thermistor open hard
detection trouble
detection trouble
H3
00
Main heater lamp abnormally high
temperature hard detection trouble
temperature hard detection trouble
01
Sub heater lamp abnormally high
temperature hard detection trouble
temperature hard detection trouble
10
Main heater lamp abnormally high
temperature soft detection trouble
temperature soft detection trouble
11
Sub heater lamp abnormally high
temperature soft detection trouble
temperature soft detection trouble
H4
00
Main heater lamp abnormally low
temperature detection
temperature detection
01
Sub heater lamp abnormally low
temperature detection
temperature detection
20
Main heater lamp abnormally low
temperature detection
temperature detection
21
Sub heater lamp abnormally low
temperature detection
temperature detection
H5
01
5 continuous T10D(T20D) not-reaching
JAM
JAM
02
Fusing thermistor abnormality
L1
00
Scanner feed trouble
L3
00
Scanner return trouble
L4
01
Main motor lock
11
Shifter motor trouble
L6
10
Polygon motor lock trouble
L8
01
Power abnormality detection trouble
U1
01
FAX battery error
02
PANEL LOW battery error
U2
04
EEPROM communication error
20
Machine speed code data error
40
CRUM chip communication error
U7
00
RIC communication trouble
U9
00
MCU-OPE communication trouble
OPE
80
Operation control PWB communication
trouble (Protocol)
trouble (Protocol)
81
Operation control PWB communication
trouble (Parity)
trouble (Parity)
82
Operation control PWB communication
trouble (Overrun)
trouble (Overrun)
84
Operation control PWB communication
trouble (Framing)
trouble (Framing)
88
Operation control PWB communication
trouble (Time-out)
trouble (Time-out)
99
Operation panel language error
EE
EL
Developer adjustment trouble (Over-toner
abnormality)
abnormality)
EU
Developer adjustment trouble (Under-
toner abnormality)
toner abnormality)
PF
00
RIC copy inhibit signal received
Trouble code
Trouble contents
Trouble
detection
Main
code
code
Sub
code
AR-M236/M276/M237/M277 TROUBLE CODE LIST 9 - 2
2. Self diagnostics
Trouble
code
Details of trouble
Main
code
code
Sub
code
A0
01
Content
Security incompatibility error
Details
When the PCL or the FAX board is
installed, it does not match with
compatible/incompatible setup of the MCU
board security.
installed, it does not match with
compatible/incompatible setup of the MCU
board security.
E1
00
Content
MCU-IMC communication trouble
Details
Communication establishment error/
framing/parity/protocol error
framing/parity/protocol error
Cause
IMC PWB connector disconnection
IMC PWB MCU PWB harness failure
Motherboard connector pin breakage
IMC PWB ROM defect, data failure
IMC PWB MCU PWB harness failure
Motherboard connector pin breakage
IMC PWB ROM defect, data failure
Check
and
remedy
and
remedy
Check the connectors and harness of the
IMC PWB and MCU PWB.
Check the grounding of the copier.
Check the ROM of the IMC PWB.
IMC PWB and MCU PWB.
Check the grounding of the copier.
Check the ROM of the IMC PWB.
10
Content
IMC PWB trouble
Details
Communication trouble between MCU and
IMC PWB
IMC PWB
Cause
IMC PWB connector disconnection
IMC PWB MCU PWB harness failure
Motherboard connector pin breakage
IMC PWB ROM defect, data failure
IMC PWB MCU PWB harness failure
Motherboard connector pin breakage
IMC PWB ROM defect, data failure
Check
and
remedy
and
remedy
Check the connectors and harness of the
IMC PWB and MCU PWB.
Check the grounding of the copier.
Check the ROM of the IMC PWB.
IMC PWB and MCU PWB.
Check the grounding of the copier.
Check the ROM of the IMC PWB.
11
Content
IMC board ASIC error
Details
ASIC abnormality on IMC board
Cause
IMC board abnormality
Check
and
remedy
and
remedy
Replace the IMC PWB.
12
Content
IMC board CODEC IC error
Details
CODEC IC (JBIG chip) abnormality on
IMC board
IMC board
Cause
IMC board abnormality
Check
and
remedy
and
remedy
Replace the IMC PWB.
Remarks
JBIG IC abnormality
13
Content
IMC board flash ROM error
Details
Flash ROM abnormality on IMC board
Cause
IMC board abnormality
Check
and
remedy
and
remedy
Replace the IMC PWB.
"When the program download is
abnormally terminated, a error may occur.
In this case, download the program again."
"When the program download is
abnormally terminated, a error may occur.
In this case, download the program again."
Remarks
Program ROM abnormality
E1
14
Content
IMC board Work RAM error
Details
IMC extended compression memory
module installation error
IMC extended compression memory
access error
module installation error
IMC extended compression memory
access error
Cause
IMC expanded memory module
installation trouble
IMC expanded memory module trouble
IMC expanded memory contact trouble
IMC board abnormality
installation trouble
IMC expanded memory module trouble
IMC expanded memory contact trouble
IMC board abnormality
Check
and
remedy
and
remedy
Check installation of the expanded
memory module. (Spec: Added to Slot 1.)
Replace the expanded memory module.
Replace the IMC PWB.
memory module. (Spec: Added to Slot 1.)
Replace the expanded memory module.
Replace the IMC PWB.
Remarks
Extend memory abnormality for
compressed image store (DIMM module)
compressed image store (DIMM module)
15
Content
IMC board Page Memory error
Details
IMC Page Memory abnormality
Cause
IMC board abnormality
Check
and
remedy
and
remedy
Replace the IMC PWB.
Remarks
Print Buffer Memory abnormality
16
Content
IMC board compression image store
memory error
memory error
Details
IMC standard compression memory
access error
access error
Cause
IMC board abnormality
Check
and
remedy
and
remedy
Replace the IMC PWB.
17
Content
IMC board smoothing IC error
Details
IMC smoothing IC abnormality
Cause
IMC board abnormality
Check
and
remedy
and
remedy
Replace the IMC PWB.
80
Content
IMC PWB communication trouble
(protocol)
(protocol)
Details
Communication trouble between MCU and
IMC PWB (Protocol error)
IMC PWB (Protocol error)
Cause
IMC PWB connector disconnection
IMC PWB MCU PWB harness failure
Motherboard connector pin breakage
IMC PWB ROM defect, data failure
IMC PWB MCU PWB harness failure
Motherboard connector pin breakage
IMC PWB ROM defect, data failure
Check
and
remedy
and
remedy
Check the connectors and harness of the
IMC PWB and MCU PWB.
Check the grounding of the copier.
Check the ROM of the IMC PWB.
IMC PWB and MCU PWB.
Check the grounding of the copier.
Check the ROM of the IMC PWB.
81
Content
IMC PWB communication trouble (Parity)
Details
Communication trouble between MCU and
printer IMC (Parity error)
printer IMC (Parity error)
Cause
IMC PWB connector disconnection
IMC PWB MCU PWB harness failure
Motherboard connector pin breakage
IMC PWB ROM defect, data failure
IMC PWB MCU PWB harness failure
Motherboard connector pin breakage
IMC PWB ROM defect, data failure
Check
and
remedy
and
remedy
Check the connectors and harness of the
IMC PWB and MCU PWB.
Check the grounding of the copier.
Check the ROM of the IMC PWB.
IMC PWB and MCU PWB.
Check the grounding of the copier.
Check the ROM of the IMC PWB.
Trouble
code
Details of trouble
Main
code
code
Sub
code
AR-M236/M276/M237/M277 TROUBLE CODE LIST 9 - 3
E1
82
Content
IMC PWB communication trouble
(Overrun)
(Overrun)
Details
Communication trouble between MCU and
IMC PWB (Overrun error)
IMC PWB (Overrun error)
Cause
IMC PWB connector disconnection
IMC PWB MCU PWB harness failure
Motherboard connector pin breakage
IMC PWB ROM defect, data failure
IMC PWB MCU PWB harness failure
Motherboard connector pin breakage
IMC PWB ROM defect, data failure
Check
and
remedy
and
remedy
Check the connectors and harness of the
IMC PWB and MCU PWB.
Check the grounding of the copier.
Check the ROM of the IMC PWB.
IMC PWB and MCU PWB.
Check the grounding of the copier.
Check the ROM of the IMC PWB.
84
Content
IMC PWB communication trouble
(Framing)
(Framing)
Details
Communication trouble between MCU and
IMC PWB (Framing error)
IMC PWB (Framing error)
Cause
IMC PWB connector disconnection
IMC PWB MCU PWB harness failure
Motherboard connector pin breakage
IMC PWB ROM defect, data failure
IMC PWB MCU PWB harness failure
Motherboard connector pin breakage
IMC PWB ROM defect, data failure
Check
and
remedy
and
remedy
Check the connectors and harness of the
IMC PWB and MCU PWB.
Check the grounding of the copier.
Check the ROM of the IMC PWB.
IMC PWB and MCU PWB.
Check the grounding of the copier.
Check the ROM of the IMC PWB.
88
Content
IMC PWB communication trouble (Time-
out)
out)
Details
Communication trouble between MCU and
IMC PWB (Time-out error)
IMC PWB (Time-out error)
Cause
IMC PWB connector disconnection
IMC PWB MCU PWB harness failure
Motherboard connector pin breakage
IMC PWB ROM defect, data failure
IMC PWB MCU PWB harness failure
Motherboard connector pin breakage
IMC PWB ROM defect, data failure
Check
and
remedy
and
remedy
Check the connectors and harness of the
IMC PWB and MCU PWB.
Check the grounding of the copier.
Check the ROM of the IMC PWB.
IMC PWB and MCU PWB.
Check the grounding of the copier.
Check the ROM of the IMC PWB.
E7
02
Content
LSU trouble
Details
BD signal from LSU is not detected in a
constant cycle. (Kept OFF or ON)
constant cycle. (Kept OFF or ON)
Cause
LSU connector or LSU inside harness
trouble or disconnection
Polygon motor rotation abnormality
Laser does not illuminate.
MCU PWB failure
trouble or disconnection
Polygon motor rotation abnormality
Laser does not illuminate.
MCU PWB failure
Check
and
remedy
and
remedy
Check for disconnection of the LSU
connector.
Check the LSU operation with SIM 61-1.
Check that the polygon motor rotates
normally.
Check laser LED lighting.
LSU replacement
Replace the MCU PWB.
connector.
Check the LSU operation with SIM 61-1.
Check that the polygon motor rotates
normally.
Check laser LED lighting.
LSU replacement
Replace the MCU PWB.
10
Content
Shading trouble (black correction)
Details
CCD black reference plate scan level
abnormality when the copy lamp turns off.
abnormality when the copy lamp turns off.
Cause
Flat cable installation failure to CCD unit
CCD unit error
CCD unit error
Check
and
remedy
and
remedy
Check flat cable installation to the CCD
unit.
Check CCD unit.
unit.
Check CCD unit.
Trouble
code
Details of trouble
Main
code
code
Sub
code
E7
11
Content
Shading trouble (white correction)
Details
Improper CCD white reference plate
reading level for copy lamp lighting
reading level for copy lamp lighting
Cause
Flat cable installation failure to CCD unit
"Dirt on the mirror, lens, and reference
white plate"
Copy lamp operation error
CCD unit abnormality
MCU PWB abnormality (Occurred in the
SPF scan position.)
"Dirt on the mirror, lens, and reference
white plate"
Copy lamp operation error
CCD unit abnormality
MCU PWB abnormality (Occurred in the
SPF scan position.)
Check
and
remedy
and
remedy
"Clean the mirror, the lens, and the
reference white plate."
Check the copy lamp light quantity and its
operation. (SIM 5-3)
Check CCD unit.
Check MCU PWB.
reference white plate."
Check the copy lamp light quantity and its
operation. (SIM 5-3)
Check CCD unit.
Check MCU PWB.
12
Content
Shading trouble
Details
White correction is not completed in the
specified number of times.
specified number of times.
Cause
Flat cable installation failure to CCD unit
"Dirt on the mirror, lens, and reference
white plate"
Copy lamp lighting trouble
CCD unit abnormality
MCU PWB abnormality
"Dirt on the mirror, lens, and reference
white plate"
Copy lamp lighting trouble
CCD unit abnormality
MCU PWB abnormality
Check
and
remedy
and
remedy
"Clean the mirror, the lens, and the
reference white plate."
Check the copy lamp light quantity and its
operation. (SIM 5-3)
Check CCD unit.
Check MCU PWB.
reference white plate."
Check the copy lamp light quantity and its
operation. (SIM 5-3)
Check CCD unit.
Check MCU PWB.
F1
00
Content
Finisher communication trouble
Details
Communication line test error occurs when
power is turned on or after the exit of a
simulation mode.
Error in Finisher communication
power is turned on or after the exit of a
simulation mode.
Error in Finisher communication
Cause
Connection trouble or disconnection of the
connector and harness between the body
and the finisher.
Finisher control PWB trouble
Control PWB failure
Malfunction by noises
connector and harness between the body
and the finisher.
Finisher control PWB trouble
Control PWB failure
Malfunction by noises
Check
and
remedy
and
remedy
Turn off/of the power to cancel the trouble.
Check connector/harness of
communication line
Replace the finisher control PWB.
Check connector/harness of
communication line
Replace the finisher control PWB.
01
Content
Side guide plated home position error
Details
The side guide plate cannot return to the
home position.
home position.
Cause
Side guide plate drive motor abnormality
Side guide plate home position sensor
abnormality
Side guide plate home position sensor
abnormality
Check
and
remedy
and
remedy
Use SIM3-3-1 to check the side guide
plate motor operation.
plate motor operation.
06
Content
Offset motor trouble
Details
When the offset motor of the finisher is
driven it does not reach the specified
position.
driven it does not reach the specified
position.
Cause
Offset motor abnormality
Offset motor origin sensor abnormality
Finisher PWB abnormality
Offset motor origin sensor abnormality
Finisher PWB abnormality
Check
and
remedy
and
remedy
Use SIM 3-3-6 to check the offset motor
operation.
operation.
Trouble
code
Details of trouble
Main
code
code
Sub
code
AR-M236/M276/M237/M277 TROUBLE CODE LIST 9 - 4
F1
08
Content
Staple motor error
Details
The staple motor cannot return to the
home position.
home position.
Cause
Staple motor abnormality
Staple motor home position sensor
abnormality
Staple unit abnormality
Staple motor home position sensor
abnormality
Staple unit abnormality
Check
and
remedy
and
remedy
Use SIM 3-3-7 to check the staple motor
operation.
operation.
11
Content
Rear edge plate home position error
Details
The rear edge plate cannot return to the
home position.
home position.
Cause
Rear edge plate drive motor abnormality
Side guide plate home position sensor
abnormality
Finisher PWB abnormality
Side guide plate home position sensor
abnormality
Finisher PWB abnormality
Check
and
remedy
and
remedy
Use SIM 3-3-2 to check the rear edge
plate motor operation.
plate motor operation.
15
Content
Finisher lift-up motor trouble
Details
The finisher lift-up motor does not reach
the specified position.
the specified position.
Cause
Lift-up motor abnormality
Lift-up motor upper limit sensor
abnormality
Finisher PWB abnormality
Lift-up motor upper limit sensor
abnormality
Finisher PWB abnormality
Check
and
remedy
and
remedy
Use SIM 3-3-5 to check the lift-up motor
operation.
operation.
F2
02
Content
Toner supply failure
Details
The value judged from the actual toner
supply hysteresis differs greatly from the
toner sensor value.
supply hysteresis differs greatly from the
toner sensor value.
Cause
Developing unit trouble
Toner supply abnormality caused by
installation of unpacked toner cartridge
Toner supply abnormality caused by
installation of unpacked toner cartridge
Check
and
remedy
and
remedy
Replace the developing unit
Use SIM 25-1 to perform DV stirring.
Use SIM 25-1 to perform DV stirring.
Trouble
code
Details of trouble
Main
code
code
Sub
code
F2
04
Content
Identification error
Model error
Model error
Type error
Destination error
Data abnormality
Data abnormality
Misc error
Details
Identification error
When the CRUM trademark differs.
When the CRUM company code differs.
When the CRUM trademark differs.
When the CRUM company code differs.
Model error
When the boot program model code does
not match with the CRUM model
information.
When the boot program model code does
not match with the CRUM model
information.
Type error
When the CRUM type is other than
[Genuine/Conversion/Production rotation].
Destination error
The destination of the body differs from
that of the CRUM.
When the CRUM type is other than
[Genuine/Conversion/Production rotation].
Destination error
The destination of the body differs from
that of the CRUM.
Data abnormality
The initial check information includes an
erroneous value.
When the max. toner supply time is 00:
When the print hard stop is 00:
The initial check information includes an
erroneous value.
When the max. toner supply time is 00:
When the print hard stop is 00:
Cause
CRUM chip failure
Erroneous developing unit
Erroneous developing unit
Check
and
remedy
and
remedy
Replace the CRUM chip.
Replace the developing unit
Replace the developing unit
F5
02
Content
Copy lamp lighting abnormality
Details
The copy lamp does not light up.
Cause
Copy lamp error
Copy lamp harness abnormality
CCD PWB harness abnormality
Copy lamp harness abnormality
CCD PWB harness abnormality
Check
and
remedy
and
remedy
Check the copy lamp (SIM 5-3)
When the lamp lights:
Check the harnesses and connectors
between the CCD unit and the MCU PWB.
When the lamp does not light:
Check the harness and connector
between the copy lamp and the MCU
PWB.
Replace the copy lamp unit.
Replace the MCU PWB.
When the lamp lights:
Check the harnesses and connectors
between the CCD unit and the MCU PWB.
When the lamp does not light:
Check the harness and connector
between the copy lamp and the MCU
PWB.
Replace the copy lamp unit.
Replace the MCU PWB.
Remarks
Copy lamp disconnection
Cable is not attached.
Cable is not attached.
F6
00
Content
MCU-FAX communication trouble
Details
Communication establishment error/
framing/parity/protocol error
framing/parity/protocol error
Cause
FAX control PWB connector disconnection
Defective harness between FAX control
PWB and MCU PWB
Motherboard connector pin breakage
FAX control PWB ROM error/Data error
Defective harness between FAX control
PWB and MCU PWB
Motherboard connector pin breakage
FAX control PWB ROM error/Data error
Check
and
remedy
and
remedy
Check connector/harness of FAX control
PWB and MCU PWB.
Check the grounding of the copier.
Check FAX control PWB ROM.
PWB and MCU PWB.
Check the grounding of the copier.
Check FAX control PWB ROM.
Trouble
code
Details of trouble
Main
code
code
Sub
code
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