AR-M550/M620/M700 SELF DIAG MESSAGE AND TROUBLESHOOTING 9 - 38
Main
code
Sub
code
Title
LCC communication trouble
U6 20 Phenomenon Display Lamp
Message
Details Communication trouble
with the LCC.
Follows the
communication protocol
specifications.
Communication error,
timing abnormality of the
communication data and
the communication signal
line
Section LCC
Operation
mode
Note
Case 1 Trouble
position/
Cause
Improper connection or
disconnection of the
connector and the
harness
Desk control PWB trouble
Control PWB (PCU)
trouble
Malfunction caused by
noises
Remedy Canceled by turning ON/
OFF the power.
Check the connector and
the harness in the
communication line.
Note
Main
code
Sub
code
Title
LCC transport motor trouble
U6 21 Phenomenon Display Lamp
Message
Details LCC transport motor
trouble
The lock detection signal
is detected continuously
for 1sec after delay of
1sec from start of the
motor.
Section LCC
Operation
mode
Note
Case 1 Trouble
position/
Cause
Motor lock
Motor RPM abnormality
Overcurrent to the motor
Desk control PWB trouble
Remedy Use SIM 4-3 to check the
transport motor
operation.
Note
Main
code
Sub
code
Title
LCC 24V power abnormality
addition
U6 22 Phenomenon Display Lamp
Message
Details LCC 24V power
abnormality addition
24V power is not supplied
to the LCC. (the LCC 24V
power is not detected for
1 sec or longer after 1 sec
from power on)
Section LCC
Operation
mode
Note
Case 1 Trouble
position/
Cause
Improper connection or
disconnection of the
connector and the
harness
Remedy Check the connector and
the harness of the power
line.
Note
Case 2 Trouble
position/
Cause
LCC control PWB trouble
Power unit trouble
Remedy Check the 24V power
with the power unit and
the LCC control PWB.
Note
Main
code
Sub
code
Title
RIC communication trouble
U7 00 Phenomenon Display Lamp
Message
Details Communication error with
RIC (By PPC
communication
standards)
An error in the
communication line test
after turning on the power
or canceling the
simulation
Section Controller
Operation
mode
Note
Case 1 Trouble
position/
Cause
Improper connection or
disconnection of the
connector and the
harness
RIC control PWB trouble
Control PWB (MFP
control) trouble
Malfunction caused by
noises
Remedy Canceled by turning ON/
OFF the power.
Check the connector and
the harness in the
communication line.
Note
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