AR-5726/5731 SELF DIAG AND TROUBLE CODE 7 - 10
U7 00 Content RIC communication trouble
Details Error in communication with RIC.
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.
Check
and
remedy
Check the communication cable,
connectors from the RIC box to the main
body.
U9 00 Content Operation control PWB communication
trouble
Details Communication trouble between MCU and
the operation control PWB
Cause Operation control PWB connector
disconnection
Harness failure of the operation control
PWB and the MCU PWB
Check
and
remedy
Check the connectors and the harness of
the operation control PWB and MCU PWB.
Check the grounding of the copier.
Check ROM on the operation control PWB.
80 Content Operation control PWB communication
trouble (Protocol)
Details Communication trouble between MCU and
the operation control PWB (Protocol error)
Cause Operation control PWB connector
disconnection.
Harness failure of the operation control.
PWB and the MCU PWB.
Check
and
remedy
Check the connectors and the harness of
the operation control PWB and MCU PWB.
Check the grounding of the copier.
81 Content Operation control PWB communication
trouble (Parity)
Details Communication trouble between MCU and
the operation control PWB (Parity error)
Cause Operation control PWB connector
disconnection.
Harness failure of the operation control
PWB and the MCU PWB.
Check
and
remedy
Check the connectors and the harness of
the operation control PWB and MCU PWB.
Check the grounding of the copier.
82 Content Operation control PWB communication
trouble (Overrun)
Details Communication trouble between MCU and
the operation control PWB (Overrun error)
Cause Operation control PWB connector
disconnection.
Harness failure of the operation control
PWB and the MCU PWB.
Check
and
remedy
Check the connectors and the harness of
the operation control PWB and MCU PWB.
Check the grounding of the copier.
Trouble
code
Details of trouble
Main
code
Sub
code
U9
84 Content Operation control PWB communication
trouble (Framing)
Details Communication trouble between MCU and
the operation control PWB (Framing error)
Cause Operation control PWB connector
disconnection.
Harness failure of the operation control
PWB and the MCU PWB.
Check
and
remedy
Check the connectors and the harness of
the operation control PWB and MCU PWB.
Check the grounding of the copier.
88 Content Operation control PWB communication
trouble (Time-out)
Details Communication trouble between MCU and
the operation PWB (Time-out error)
Cause Operation control PWB connector
disconnection.
Harness failure of the operation control
PWB and the MCU PWB.
Check
and
remedy
Check the connectors and the harness of
the operation control PWB and MCU PWB.
Check the grounding of the copier.
99 Content Operation panel destination error
Details An error occurred in checking the
destination of the operation panel and the
main body.
Cause Erroneous connection the operation panel
unit.
SIM setup error.
Check
and
remedy
Check the destination information of the
operation panel unit and the MCU.
(Sim26-6/22)
EE EL Content Developer adjustment trouble (Over-toned
abnormality)
Details An abnormality occurred in execution of
automatic developer adjustment.
Sample data was detected over-toner.
Cause Toner concentration sensor abnormality.
Toner concentration trouble.
Developing unit trouble.
MCU PWB failure.
Check
and
remedy
Use SIM 25-2 to perform the auto
developer adjustment.
EU Content Developer adjustment trouble (Under-
toned abnormality)
Details An abnormality occurred in execution of
automatic developer adjustment.
Sample data was detected under-toner.
Cause Toner concentration sensor abnormality.
Toner concentration trouble.
Developing unit trouble.
MCU PWB failure.
Check
and
remedy
Use SIM 25-2 to perform the auto
developer adjustment.
PF 00 Content PF trouble
Details The copy inhibit command from RIC is
received.
Cause Judged by the host.
Check
and
remedy
Inform to the host.
Trouble
code
Details of trouble
Main
code
Sub
code
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