Read Sharp AR-M316 (serv.man10) Service Manual online
AR-M256/M257/M258/M316/M317/M318/5625/5631 TROUBLE CODE LIST 9 - 11
L4
11
Content
Shifter motor trouble
Details
The shifter home position detection signal
is not detected when the shifter is
operating.
is not detected when the shifter is
operating.
Cause
Shifter motor trouble or harnes connection
trouble and disconnection.
trouble and disconnection.
Shifter home position sensor trouble.
Check
and
remedy
and
remedy
Check the shifter motor operation with SIM
3-11.
3-11.
Check connection of the shifter motor
harness/connector.
harness/connector.
Replace the shifter motor.
Replace the MCU PWB.
L6
10
Content
Polygon motor lock trouble
Details
The polygon motor does not rotate.
The motor lock signal is detected for 6sec
or more after the polygon motor rotates.
The motor lock signal is detected for 1sec
during rotation of the polygon motor.
or more after the polygon motor rotates.
The motor lock signal is detected for 1sec
during rotation of the polygon motor.
Cause
Polygon motor unit failure
Polygon motor connection, harness trouble
or disconnection
MCU PWB failure
or disconnection
MCU PWB failure
Check
and
remedy
and
remedy
Check the polygon motor operation with
SIM 61-1.
SIM 61-1.
Check the connectors and the harness of
polygon motor
Replace the polygon motor.
polygon motor
Replace the polygon motor.
Replace the MCU PWB.
L8
10
Content
Power abnormality detection trouble
Details
The power status monitoring signal keeps
power OFF state after passing the
specified time (2sec).
power OFF state after passing the
specified time (2sec).
Cause
Circuit around the power status monitoring
signal (PSSTS) failure.
signal (PSSTS) failure.
Check
and
remedy
and
remedy
Check whether power status monitoring
signal (PSSTS) on MCU PWB is OPEN or
not.
Replace MCU PWB.
signal (PSSTS) on MCU PWB is OPEN or
not.
Replace MCU PWB.
U1
01
Content
FAX battery error
Details
The SRAM backup battery voltage on FAX
control PWB falls.
control PWB falls.
Cause
The SRAM backup battery voltage on FAX
control PWB falls.
control PWB falls.
Check
and
remedy
and
remedy
Check voltage of the SRAM back up
battery.
battery.
Replace the battery.
02
Content
PANEL LOW battery error
Details
The voltage of the panel clock function
battery falls.
battery falls.
Cause
The voltage of the panel clock function
battery falls.
battery falls.
Check
and
remedy
and
remedy
Check voltage of panel clock function
battery.
battery.
Replace the battery.
Trouble
code
Details of trouble
Main
code
code
Sub
code
U2
04
Content
EEPROM communication error
Details
EEPROM communication error
Cause
EEPROM defect.
ICU PWB EEPROM access circuit failure.
Check
and
remedy
and
remedy
Check that the EEPROM is properly set.
Clear trouble with SIM 16.
Replace the MCU PWB.
20
Content
Machine speed code data error
Details
The machine boot speed information is not
identical to the model code speed
information
identical to the model code speed
information
Cause
EEPROM defect.
SIM operation error.
Check
and
remedy
and
remedy
Check for matching of the machine and
model information setting in SIM26-57.
model information setting in SIM26-57.
40
Content
CRUM chip communication error
Details
Error in MCU-CRUM chip communication
Cause
CRUM chip failure.
Developing unit contact trouble.
MCU PWB failure.
Check
and
remedy
and
remedy
Replace the CRUM chip.
Check installation of the developing unit.
Clear the trouble with SIM 16.
Replace the MCU PWB.
Replace the MCU PWB.
Remarks
CRUM communication error
U7
00
Content
RIC communication trouble
Details
Error in communication with RIC.
Error in communication test after turning
on the power or canceling SIM.
Error in communication test after turning
on the power or canceling SIM.
Cause
Connector harness contact trouble or
disconnection.
RIC control PWB trouble.
MCU PWB failure.
Malfunction by noises.
disconnection.
RIC control PWB trouble.
MCU PWB failure.
Malfunction by noises.
Check
and
remedy
and
remedy
Check the communication cable,
connectors from the RIC box to the main
body.
connectors from the RIC box to the main
body.
U9
00
Content
Operation control PWB communication
trouble
trouble
Details
Communication trouble between MCU and
the operation control PWB
the operation control PWB
Cause
Operation control PWB connector
disconnection
Harness failure of the operation control
PWB and the MCU PWB
disconnection
Harness failure of the operation control
PWB and the MCU PWB
Check
and
remedy
and
remedy
Check the connectors and the harness of
the operation control PWB and MCU PWB.
the operation control PWB and MCU PWB.
Check the grounding of the copier.
Check ROM on the operation control PWB.
Check ROM on the operation control PWB.
80
Content
Operation control PWB communication
trouble (Protocol)
trouble (Protocol)
Details
Communication trouble between MCU and
the operation control PWB (Protocol error)
the operation control PWB (Protocol error)
Cause
Operation control PWB connector
disconnection.
Harness failure of the operation control.
PWB and the MCU PWB.
disconnection.
Harness failure of the operation control.
PWB and the MCU PWB.
Check
and
remedy
and
remedy
Check the connectors and the harness of
the operation control PWB and MCU PWB.
the operation control PWB and MCU PWB.
Check the grounding of the copier.
Trouble
code
Details of trouble
Main
code
code
Sub
code
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