Sharp AR-M276 (serv.man6) Service Manual ▷ View online
AR-M236/M276/M237/M277 TROUBLE CODE LIST 9 - 5
F6
10
Content
FAX control PWB trouble
Details
Communication trouble between MCU and
FAX control PWB
FAX control PWB
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.
80
Content
FAX control PWB communication trouble
(Protocol)
(Protocol)
Details
Communication trouble between MCU and
FAX control PWB (Protocol error)
FAX control PWB (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.
81
Content
FAX control PWB communication trouble
(Parity)
(Parity)
Details
Communication trouble between MCU and
FAX control PWB (Parity error)
FAX control PWB (Parity 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.
82
Content
FAX control PWB communication trouble
(Over-run)
(Over-run)
Details
Communication trouble between MCU and
FAX control PWB (Overrun error)
FAX control PWB (Overrun 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.
84
Content
FAX control PWB communication trouble
(Framing)
(Framing)
Details
Communication trouble between MCU and
FAX control PWB (Framing error)
FAX control PWB (Framing 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
F6
88
Content
FAX control PWB communication trouble
(Timeout)
(Timeout)
Details
Communication trouble between MCU and
FAX control PWB (Timeout error)
FAX control PWB (Timeout 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.
99
Content
Machine-FAX board language error
Details
The machine language setup does not
coincide with the FAX board language
setup.
coincide with the FAX board language
setup.
Cause
FAX board correction error
SIM setup error
SIM setup error
Check
and
remedy
and
remedy
Check the firmware of the FAX board and
the combination of the panel screen data,
and download the correct version, if
necessary.
Check the machine language information.
(Machine language setup: SIM 26-22)
the combination of the panel screen data,
and download the correct version, if
necessary.
Check the machine language information.
(Machine language setup: SIM 26-22)
F9
00
Content
MCU-PRT communication trouble
Details
Communication establishment error/
framing/parity/protocol error
framing/parity/protocol error
Cause
Printer PWB connector disconnection
Harness trouble between the printer PWB
and the MCU PWB
Motherboard connector pin breakage
Printer PWB ROM trouble/Data
disturbance
Harness trouble between the printer PWB
and the MCU PWB
Motherboard connector pin breakage
Printer PWB ROM trouble/Data
disturbance
Check
and
remedy
and
remedy
Check the connectors and harness of the
printer PWB and MCU PWB.
Check the grounding of the copier.
Check ROM on printer PWB.
printer PWB and MCU PWB.
Check the grounding of the copier.
Check ROM on printer PWB.
10
Content
Printer PWB trouble
Details
Communication trouble between MCU and
printer PWB
printer PWB
Cause
Printer PWB connector disconnection
Harness trouble between the printer PWB
and the MCU PWB
Motherboard connector pin breakage
Printer PWB ROM trouble/Data
disturbance
Harness trouble between the printer PWB
and the MCU PWB
Motherboard connector pin breakage
Printer PWB ROM trouble/Data
disturbance
Check
and
remedy
and
remedy
Check the connectors and harness of the
printer PWB and MCU PWB.
Check the grounding of the copier.
Check ROM on printer PWB.
printer PWB and MCU PWB.
Check the grounding of the copier.
Check ROM on printer PWB.
80
Content
Printer PWB communication trouble
(Protocol)
(Protocol)
Details
Communication trouble between MCU and
printer PWB (Protocol error)
printer PWB (Protocol error)
Cause
Printer PWB connector disconnection
Harness trouble between the printer PWB
and the MCU PWB
Motherboard connector pin breakage
Printer PWB ROM trouble/Data
disturbance
Harness trouble between the printer PWB
and the MCU PWB
Motherboard connector pin breakage
Printer PWB ROM trouble/Data
disturbance
Check
and
remedy
and
remedy
Check the connectors and harness of the
printer PWB and MCU PWB.
Check the grounding of the copier.
Check ROM on printer PWB.
printer PWB and MCU PWB.
Check the grounding of the copier.
Check ROM on printer PWB.
Trouble
code
Details of trouble
Main
code
code
Sub
code
AR-M236/M276/M237/M277 TROUBLE CODE LIST 9 - 6
F9
81
Content
Printer PWB communication trouble
(Parity)
(Parity)
Details
Communication trouble between MCU and
printer PWB (Parity error)
printer PWB (Parity error)
Cause
Printer PWB connector disconnection
Harness trouble between the printer PWB
and the MCU PWB
Motherboard connector pin breakage
Printer PWB ROM trouble/Data
disturbance
Harness trouble between the printer PWB
and the MCU PWB
Motherboard connector pin breakage
Printer PWB ROM trouble/Data
disturbance
Check
and
remedy
and
remedy
Check the connectors and harness of the
printer PWB and MCU PWB.
Check the grounding of the copier.
Check ROM on printer PWB.
printer PWB and MCU PWB.
Check the grounding of the copier.
Check ROM on printer PWB.
82
Content
Printer PWB communication trouble
(Overrun)
(Overrun)
Details
Communication trouble between MCU and
printer PWB (Overrun error)
printer PWB (Overrun error)
Cause
Printer PWB connector disconnection
Harness trouble between the printer PWB
and the MCU PWB
Motherboard connector pin breakage
Printer PWB ROM trouble/Data
disturbance
Harness trouble between the printer PWB
and the MCU PWB
Motherboard connector pin breakage
Printer PWB ROM trouble/Data
disturbance
Check
and
remedy
and
remedy
Check the connectors and harness of the
printer PWB and MCU PWB.
Check the grounding of the copier.
Check ROM on printer PWB.
printer PWB and MCU PWB.
Check the grounding of the copier.
Check ROM on printer PWB.
84
Content
Printer PWB communication trouble
(Framing)
(Framing)
Details
Communication trouble between MCU and
printer PWB (Framing error)
printer PWB (Framing error)
Cause
Printer PWB connector disconnection
Harness trouble between the printer PWB
and the MCU PWB
Motherboard connector pin breakage
Printer PWB ROM trouble/Data
disturbance
Harness trouble between the printer PWB
and the MCU PWB
Motherboard connector pin breakage
Printer PWB ROM trouble/Data
disturbance
Check
and
remedy
and
remedy
Check the connectors and harness of the
printer PWB and MCU PWB.
Check the grounding of the copier.
Check ROM on printer PWB.
printer PWB and MCU PWB.
Check the grounding of the copier.
Check ROM on printer PWB.
88
Content
Printer PWB communication trouble
(Timeout)
(Timeout)
Details
Communication trouble between MCU and
printer PWB (Timeout error)
printer PWB (Timeout error)
Cause
Printer PWB connector disconnection
Harness trouble between the printer PWB
and the MCU PWB
Motherboard connector pin breakage
Printer PWB ROM trouble/Data
disturbance
Harness trouble between the printer PWB
and the MCU PWB
Motherboard connector pin breakage
Printer PWB ROM trouble/Data
disturbance
Check
and
remedy
and
remedy
Check the connectors and harness of the
printer PWB and MCU PWB.
Check the grounding of the copier.
Check ROM on printer PWB.
printer PWB and MCU PWB.
Check the grounding of the copier.
Check ROM on printer PWB.
Trouble
code
Details of trouble
Main
code
code
Sub
code
F9
99
Content
Machine-PCL board language error
Details
The machine language setup does not
coincide with the PCL board language
setup.
coincide with the PCL board language
setup.
Cause
PCL board connection error
SIM setup error
SIM setup error
Check
and
remedy
and
remedy
Check the firmware of the PCL board and
the combination of the panel screen data,
and download the correct version, if
necessary.
Check the machine language information.
(Machine language setup: SIM 26-22)
the combination of the panel screen data,
and download the correct version, if
necessary.
Check the machine language information.
(Machine language setup: SIM 26-22)
H2
00
Content
Main heater lamp thermistor open hard
detection
detection
Details
Main heater lamp thermistor open
detection
Fusing unit not installed
detection
Fusing unit not installed
Cause
Thermistor defect
Control PWB failure
Fusing section connector contact failure
Fusing unit not installed
Control PWB failure
Fusing section connector contact failure
Fusing unit not installed
Check
and
remedy
and
remedy
Check the harness and the connector of
the thermistor and the MCU.
Clear the display of self-diagnostics with
SIM 14.
the thermistor and the MCU.
Clear the display of self-diagnostics with
SIM 14.
Remarks
Thermistor open
01
Content
Sub heater lamp abnormally high
temperature hard detection trouble
temperature hard detection trouble
Details
Thermistor open detection
Fusing unit not installed
Fusing unit not installed
Cause
Thermistor defect
Control PWB failure
Fusing section connector contact failure
Fusing unit not installed
Control PWB failure
Fusing section connector contact failure
Fusing unit not installed
Check
and
remedy
and
remedy
Check the harness and the connector of
the thermistor and the MCU.
Clear the display of self-diagnostics with
SIM 14.
the thermistor and the MCU.
Clear the display of self-diagnostics with
SIM 14.
Remarks
Thermistor open
H3
00
Content
Main heater lamp abnormally high
temperature hard detection trouble
temperature hard detection trouble
Details
The fusing temperature is over 230°C.
Cause
Thermistor defect
Control PWB failure
Fusing section connector contact failure
Control PWB failure
Fusing section connector contact failure
Check
and
remedy
and
remedy
Check the heater lamp blinking with SIM 5-
2.
When the lamp blinks normally:
Check the thermistor and the harness.
Check the MCU PWB thermistor input
circuit.
If lamp lights and stays lit:
Check the power PWB and the MCU PWB
lamp control circuit.
Clear the display of self-diagnostics with
SIM 14.
2.
When the lamp blinks normally:
Check the thermistor and the harness.
Check the MCU PWB thermistor input
circuit.
If lamp lights and stays lit:
Check the power PWB and the MCU PWB
lamp control circuit.
Clear the display of self-diagnostics with
SIM 14.
Trouble
code
Details of trouble
Main
code
code
Sub
code
AR-M236/M276/M237/M277 TROUBLE CODE LIST 9 - 7
H3
01
Content
Sub heater lamp abnormally high
temperature hard detection trouble
temperature hard detection trouble
Details
The fusing temperature is over 230°C.
Cause
Thermistor defect
Control PWB failure
Fusing section connector contact failure
Control PWB failure
Fusing section connector contact failure
Check
and
remedy
and
remedy
Check the heater lamp blinking with SIM 5-
2.
When the lamp blinks normally:
Check the thermistor and the harness.
Check the MCU PWB thermistor input
circuit.
If lamp lights and stays lit:
Check the power PWB and the MCU PWB
lamp control circuit.
Clear the display of self-diagnostics with
SIM 14.
2.
When the lamp blinks normally:
Check the thermistor and the harness.
Check the MCU PWB thermistor input
circuit.
If lamp lights and stays lit:
Check the power PWB and the MCU PWB
lamp control circuit.
Clear the display of self-diagnostics with
SIM 14.
H3
10
Content
Main heater lamp abnormally high
temperature soft detection trouble
temperature soft detection trouble
Details
The fusing temperature is over 230°C.
Cause
Thermistor defect
Control PWB failure
Fusing section connector contact failure
Control PWB failure
Fusing section connector contact failure
Check
and
remedy
and
remedy
Check the heater lamp blinking with SIM 5-
2.
When the lamp blinks normally:
Check the thermistor and the harness.
Check the MCU PWB thermistor input
circuit.
If lamp lights and stays lit:
Check the power PWB and the MCU PWB
lamp control circuit.
Clear the display of self-diagnostics with
SIM 14.
2.
When the lamp blinks normally:
Check the thermistor and the harness.
Check the MCU PWB thermistor input
circuit.
If lamp lights and stays lit:
Check the power PWB and the MCU PWB
lamp control circuit.
Clear the display of self-diagnostics with
SIM 14.
11
Content
Sub heater lamp abnormally high
temperature soft detection trouble
temperature soft detection trouble
Details
The fusing temperature is over 230°C.
Cause
Thermistor defect
Control PWB failure
Fusing section connector contact failure
Control PWB failure
Fusing section connector contact failure
Check
and
remedy
and
remedy
Check the heater lamp blinking with SIM 5-
2.
When the lamp blinks normally:
Check the thermistor and the harness.
Check the MCU PWB thermistor input
circuit.
If lamp lights and stays lit:
Check the power PWB and the MCU PWB
lamp control circuit.
Clear the display of self-diagnostics with
SIM 14.
2.
When the lamp blinks normally:
Check the thermistor and the harness.
Check the MCU PWB thermistor input
circuit.
If lamp lights and stays lit:
Check the power PWB and the MCU PWB
lamp control circuit.
Clear the display of self-diagnostics with
SIM 14.
Trouble
code
Details of trouble
Main
code
code
Sub
code
H4
00
Content
Main heater lamp abnormally low
temperature detection
temperature detection
Details
The setup temperature (about 90°C is not
reached within the specified time (about
35sec) from turning on the power ON SW.
(When the temperature falls below 120°C
in the standby mode.)
reached within the specified time (about
35sec) from turning on the power ON SW.
(When the temperature falls below 120°C
in the standby mode.)
Cause
Thermistor defect
Heater lamp failure
Thermostat failure
Control PWB failure
Heater lamp failure
Thermostat failure
Control PWB failure
Check
and
remedy
and
remedy
Check the heater lamp blinking with SIM 5-
2.
When the lamp blinks normally:
Check the thermistor and the harness.
Check the MCU PWB thermistor input
circuit.
When the lamp does not light:
Check for disconnection of the heater
lamp and thermostat.
Check the interlock switch.
Check the power PWB and the MCU PWB
lamp control circuit.
Clear the display of self-diagnostics with
SIM 14.
2.
When the lamp blinks normally:
Check the thermistor and the harness.
Check the MCU PWB thermistor input
circuit.
When the lamp does not light:
Check for disconnection of the heater
lamp and thermostat.
Check the interlock switch.
Check the power PWB and the MCU PWB
lamp control circuit.
Clear the display of self-diagnostics with
SIM 14.
01
Content
Sub heater lamp abnormally low
temperature detection
temperature detection
Details
The setup temperature (about 90°C is not
reached within the specified time (about
35sec) from turning on the power ON SW.
(When the temperature falls below 120°C
in the standby mode.)
reached within the specified time (about
35sec) from turning on the power ON SW.
(When the temperature falls below 120°C
in the standby mode.)
Cause
Thermistor defect
Heater lamp failure
Thermostat failure
Control PWB failure
Heater lamp failure
Thermostat failure
Control PWB failure
Check
and
remedy
and
remedy
Check the heater lamp blinking with SIM 5-
2.
When the lamp blinks normally:
Check the thermistor and the harness.
Check the MCU PWB thermistor input
circuit.
When the lamp does not light:
Check for disconnection of the heater
lamp and thermostat.
Check the interlock switch.
Check the power PWB and the MCU PWB
lamp control circuit.
Clear the display of self-diagnostics with
SIM 14.
2.
When the lamp blinks normally:
Check the thermistor and the harness.
Check the MCU PWB thermistor input
circuit.
When the lamp does not light:
Check for disconnection of the heater
lamp and thermostat.
Check the interlock switch.
Check the power PWB and the MCU PWB
lamp control circuit.
Clear the display of self-diagnostics with
SIM 14.
Trouble
code
Details of trouble
Main
code
code
Sub
code
AR-M236/M276/M237/M277 TROUBLE CODE LIST 9 - 8
H4
20
Content
Main heater lamp abnormally low
temperature detection
temperature detection
Details
The setup temperature (about 90°C is not
reached within the specified time (about
35sec) from turning on the power ON SW.
(When the temperature falls below 120°C
in the standby mode.)
reached within the specified time (about
35sec) from turning on the power ON SW.
(When the temperature falls below 120°C
in the standby mode.)
Cause
Thermistor defect
Heater lamp failure
Thermostat failure
Control PWB failure
Heater lamp failure
Thermostat failure
Control PWB failure
Check
and
remedy
and
remedy
Check the heater lamp blinking with SIM 5-
2.
When the lamp blinks normally:
Check the thermistor and the harness.
Check the MCU PWB thermistor input
circuit.
When the lamp does not light:
Check for disconnection of the heater
lamp and thermostat.
Check the interlock switch.
Check the power PWB and the MCU PWB
lamp control circuit.
Clear the display of self-diagnostics with
SIM 14.
2.
When the lamp blinks normally:
Check the thermistor and the harness.
Check the MCU PWB thermistor input
circuit.
When the lamp does not light:
Check for disconnection of the heater
lamp and thermostat.
Check the interlock switch.
Check the power PWB and the MCU PWB
lamp control circuit.
Clear the display of self-diagnostics with
SIM 14.
21
Content
Sub heater lamp abnormally low
temperature detection
temperature detection
Details
The setup temperature (about 90°C is not
reached within the specified time (about
35sec) from turning on the power ON SW.
(When the temperature falls below 120°C
in the standby mode.)
reached within the specified time (about
35sec) from turning on the power ON SW.
(When the temperature falls below 120°C
in the standby mode.)
Cause
Thermistor defect
Heater lamp failure
Thermostat failure
Control PWB failure
Heater lamp failure
Thermostat failure
Control PWB failure
Check
and
remedy
and
remedy
Check the heater lamp blinking with SIM 5-
2.
When the lamp blinks normally:
Check the thermistor and the harness.
Check the MCU PWB thermistor input
circuit.
When the lamp does not light:
Check for disconnection of the heater
lamp and thermostat.
Check the interlock switch.
Check the power PWB and the MCU PWB
lamp control circuit.
Clear the display of self-diagnostics with
SIM 14.
2.
When the lamp blinks normally:
Check the thermistor and the harness.
Check the MCU PWB thermistor input
circuit.
When the lamp does not light:
Check for disconnection of the heater
lamp and thermostat.
Check the interlock switch.
Check the power PWB and the MCU PWB
lamp control circuit.
Clear the display of self-diagnostics with
SIM 14.
Trouble
code
Details of trouble
Main
code
code
Sub
code
H5
01
Content
5 continuous T10D(T20D) not-reaching
JAM
JAM
Details
T10D(T20D) not-reaching JAM was
detected 5 continuous times.
detected 5 continuous times.
Cause
The fusing JAM is not completely
removed. (Jam paper remains.)
T10D or T20D sensor breakdown or
harness connection trouble
Fusing unit installation failure
removed. (Jam paper remains.)
T10D or T20D sensor breakdown or
harness connection trouble
Fusing unit installation failure
Check
and
remedy
and
remedy
Check for jam paper in the fusing section.
(paper winding, etc.)
Check fusing unit installation
Clear the trouble with SIM 14.
(paper winding, etc.)
Check fusing unit installation
Clear the trouble with SIM 14.
02
Content
Fusing thermistor abnormality detect
Details
Fusing thermistor temperature transient
abnormality (Paper winding)
abnormality (Paper winding)
Cause
Paper wound around the fusing roller.
Fusing pawl abnormality
Fusing unit installation failure
Fusing pawl abnormality
Fusing unit installation failure
Check
and
remedy
and
remedy
Check for jam paper in the fusing section.
(paper winding, etc.)
Check installation of the fusing unit. Check
the fusing pawl.
Clear the trouble with SIM 14.
(paper winding, etc.)
Check installation of the fusing unit. Check
the fusing pawl.
Clear the trouble with SIM 14.
L1
00
Content
Scanner feed trouble
Details
Scanner feed is not completed within the
specified time.
specified time.
Cause
Mirror unit defect
Scanner wire disconnection
Origin detection sensor error
Mirror motor harness abnormality
Scanner wire disconnection
Origin detection sensor error
Mirror motor harness abnormality
Check
and
remedy
and
remedy
Check the scanning operation with SIM 1-
1.
Mirror base feed trouble
Check for disconnection of the scanner
wire.
Check the harness and connector
between the mirror motor and the MCU
PWB.
Replace the mirror unit.
Replace the MCU PWB.
When the mirror feeds:
Check the mirror home position sensor
with SiM 1-2.
1.
Mirror base feed trouble
Check for disconnection of the scanner
wire.
Check the harness and connector
between the mirror motor and the MCU
PWB.
Replace the mirror unit.
Replace the MCU PWB.
When the mirror feeds:
Check the mirror home position sensor
with SiM 1-2.
Trouble
code
Details of trouble
Main
code
code
Sub
code
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