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AR-BC320 TROUBLESHOOTING 11 - 22
Main
code
Sub
code
Title
Shift motor trouble
L4
11
Display
Lamp/Message
Phenomenon Detail
When initializing the shift
motor, the change in the
shift motor home position
sensor characteristics is
not detected within the
specified time.
Section
Paper feed
Case 1
Cause
Shift motor trouble,
disconnection of the
harness between the PCU
PWB and the shift motor,
control circuit trouble
Check &
Remedy
Use SIM 6-1 to check the
shift motor operation. Use
SIM 30-1 to check the shift
motor home position
sensor. Check the harness
and the connector between
the PCU PWB and the shift
motor.
Main
code
Sub
code
Title
Full wave signal not provided
L8
01
Display
Lamp/Message
Phenomenon Detail
The full wave signal is not
provided.
Section
—
Case 1
Cause
PCU PWB trouble
Check &
Remedy
Replace the PCU PWB.
Case 2
Cause
Power supply unit trouble
Check &
Remedy
Replace the power supply
unit.
Case 3
Cause
Harness trouble
Check &
Remedy
Check connection of the
harness and the
connector.
Main
code
Sub
code
Title
Full wave signal width
abnormality
L8
02
Display
Lamp/Message
Phenomenon Detail
An abnormality of the full
wave signal frequency is
detected. (The detected
frequency is 65kHz or
above, or 45kHz or below.)
Section
—
Case 1
Cause
PCU PWB trouble
Check &
Remedy
Replace the PCU PWB.
Case 2
Cause
Power supply unit trouble
Check &
Remedy
Replace the power supply
unit.
Case 3
Cause
Harness trouble
Check &
Remedy
Check connection of the
harness and the
connector.
Main
code
Sub
code
Title
Main power switch abnormality
detection
L8
04
Display
Lamp/Message
Phenomenon Detail
Though the PCU program
is operating (the power is
supplied), the main power
switch OFF is detected.
Section
—
Case 1
Cause
Main power switch trouble
Check &
Remedy
Replace the main power
switch.
Case 2
Cause
Power supply unit trouble
Check &
Remedy
Replace the power supply
unit.
Case 3
Cause
Harness trouble
Check &
Remedy
Check connection of the
harness and the
connector.
Main
code
Sub
code
Title
RIC copy inhibit signal reception
PF
00
Display
Lamp/Message
Phenomenon Detail
The copy inhibit signal
from RIC (host) is
received.
Section
—
Case 1
Cause
Depends on a judgment by
the host.
Check &
Remedy
Make notification to the
host. Use SIM 27-1 to
ignore.
Main
code
Sub
code
Title
ICU-OPE communication trouble
(ICU/OPE detection)
U0
00
Display
Lamp/Message
Phenomenon Detail
Communication
establishment error,
framing/parity/protocol
error
ROM version mismatching
Section
—
Case 1
Cause
Disconnection of the
operation panel
communication connector
of the ICU/MFP PWB,
harness trouble between
the ICU PWB and the MFP
PWB.
Check &
Remedy
Check the connector and
the harness between the
ICU PWB and the MFP
PWB.
Case 2
Cause
ICU/MFP PWB trouble
Check &
Remedy
Check grounding of the
machine.
Replace the ICU PWB or
the MFP PWB.
Case 3
Cause
When the OPE-ROM
without security functions
is installed for the ICU-
ROM with security kit
functions.
Check &
Remedy
Check the ROM version,
and replace it if necessary.
Summary of Contents for AR-BC320
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