AR-M350 TROUBLE CODES 11-7
F6
00
Content
Communication trouble (ICU detection)
between ICU and FAX
Details
Communication establishment error/Fleming/
Parity/Protocol error
Cause
Slave unit PWB connector disconnection
Harness abnormality between slave unit
PWB and ICU PWB.
Slave unit PWB mother board connector pin
breakage
Slave unit ROM abnormality/No ROM/
Reverse insertion of ROM/ROM pin
breakable
Check &
Remedy
Check connector harness between slave unit
PWB and ICU PWB.
Check grounding of machine.
Check slave unit PWB ROM.
01
Content
FAX expansion flash memory abnormality
(ICU detection)
Details
Expansion flash memory with SRAM backup
data is installed.
Cause
SRAM backup data is detected in expansion
flash memory.
Expansion flash memory in which SRAM
data are backed up with SIM 66-19 is
installed.
Check &
Remedy
Restore backup data to SRAM with SIM 66-
20, and clear expansion flash memory with
SIM 66-10. If data are unnecessary,
clear expansion flash memory with SIM 66-
10.
04
Content
FAX modem operation abnormality
Details
FAX PWB modem chip operation
abnormality
Cause
The boot test pin in the FAX PWB is shorted
and normal operation is tried.
Modem chip operation abnormality in FAX
PWB
Check &
Remedy
Turn on the power again without shorting the
boot test pin in the FAX PWB.
Replace FAX PWB.
F7
01
Content
FAX board EEPROM read/write error
Details
EEPROM access error (read/write)
Cause
EEPROM trouble
FAX PWB EEPROM access circuit trouble
Check &
Remedy
Replace FAX PWB.
H2
00···
HL1
(RT
H1)
01···
HL2
(RT
H2)
Content
thermistor open
Fusing unit not installed
Detail
Thermistor is open.
(An input voltage of 2.92V or above is
detected.)
Fusing unit not installed
Cause
Thermistor trouble
Control PWB trouble
Fusing section connector disconnection
AC power trouble
Fusing unit not installed
Check and
remedy
Check harnesses and connectors from the
thermistor to the control PWB.
Use DIAG (SIM14) to clear the self diag
display.
MAIN
SUB
H3
00···
HL1
(RT
H1)
01···
HL2
(RT
H2)
Content
Fusing section high temperature trouble
Detail
The fusing temperature exceeds 242°C.
(An input voltage of 0.27V or above is
detected.)
Cause
thermistor trouble
Control PWB trouble
Fusing section connector disconnection
AC power trouble
Check and
remedy
Use DIAG (SIM5-2) to check the heater lamp
Blinking operation.
If the heater lamp blinks normally:
Check the thermistor and its harness.
Check the thermistor input circuit in the
control PWB.
If the heater lamp keep lighting:
Check the AC PWB and the lamp control
circuit in the control PWB.
Use DIAG (SIM14) to cancel the trouble
H4
00···
HL1
(RT
H1)
01···
HL2
(RT
H2)
Content
Fusing section low temperature trouble
Detail
•The set temperature is not reached within
the specified time (normally 3 min) when
warming up or resetting from pre-heating.
•Under the ready state.
(An input voltage of 1.21V or below is
detected 5 times continuously.)
Cause
thermistor trouble
Heater lamp trouble
Control PWB trouble
Thermostat trouble
AC power trouble
Interlock switch trouble
Check and
remedy
Use DIAG (SIM5-2) to check the heater lamp
Blinking operation.
If the heater lamp blinks normally:
Check the thermistor and its harness.
Check the thermistor input circuit in the
control PWB.
If the heater lamp does not light:
Check for heater lamp disconnection and
thermostat disconnection.
Check the interlock switch.
Check the AC PWB and the lamp control
circuit in the control PWB.
Use DIAG (SIM14) to cancel the trouble.
H5
01
Content
5-time continuous POD1 not-reaching jam
detection
Detail
5-time continuous POD1 not-reaching jam
detection
Cause
A fusing section jam is not properly removed.
(Jam paper remains.)
POD1 sensor trouble, or harness
disconnection
Improper installation of fusing unit
Check and
remedy
Check jam paper in the fusing section.
(winding, etc.)
Check POD1 sensor harness, and check the
fusing unit installation.
Use DIAG (SIM14) to cancel the trouble.
L1
00
Content
Scanner feed trouble
Details
Scanner feed is not completed within the
specified time.
Cause
Scanner unit abnormality
Scanner wire disconnection
Check &
Remedy
Check scanning with SIM 1-1.
MAIN
SUB
) !"#
