AR-M236/M276/M237/M277 TROUBLE CODE LIST 9 - 6
F9 81 Content Printer PWB communication trouble
(Parity)
Details Communication trouble between MCU and
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
Check
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.
82 Content Printer PWB communication trouble
(Overrun)
Details Communication trouble between MCU and
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
Check
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.
84 Content Printer PWB communication trouble
(Framing)
Details Communication trouble between MCU and
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
Check
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.
88 Content Printer PWB communication trouble
(Timeout)
Details Communication trouble between MCU and
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
Check
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.
Trouble
code
Details of trouble
Main
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.
Cause PCL board connection error
SIM setup error
Check
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)
H2 00 Content Main heater lamp thermistor open hard
detection
Details Main heater lamp thermistor open
detection
Fusing unit not installed
Cause Thermistor defect
Control PWB failure
Fusing section connector contact failure
Fusing unit not installed
Check
and
remedy
Check the harness and the connector of
the thermistor and the MCU.
Clear the display of self-diagnostics with
SIM 14.
Remarks Thermistor open
01 Content Sub heater lamp thermistor open hard
detection
Details Sub heater lamp thermistor open detection
Fusing unit not installed
Cause Thermistor defect
Control PWB failure
Fusing section connector contact failure
Fusing unit not installed
Check
and
remedy
Check the harness and the connector of
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
Details The fusing main heater thermistor causes
abnormally high temperature.
Cause Main heater lamp thermistor defect
Control PWB failure
Fusing section connector contact failure
Check
and
remedy
Check the main heater lamp blinking with
SIM 5-2-1.
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
Sub
code
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