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AR-BC320 TROUBLESHOOTING 11 - 14
Main
code
Sub
code
Title
Developing unit CRUM trouble
(Cyan)
F2
75
Display
Lamp/Message
Phenomenon Detail
CRUM read/write error
Section
Developing
Case 1
Cause
Improper connection or
disconnection of the
connector and the harness
between the PCU and the
CRUM.
Check &
Remedy
Check the connector and
the harness between the
PCU and the CRUM.
Case 2
Cause
Developing unit trouble
Check &
Remedy
Replace the developing
unit.
Case 3
Cause
Control PWB (PCU)
trouble
Check &
Remedy
Replace the PCU PWB.
Main
code
Sub
code
Title
Developing unit CRUM trouble
(Magenta)
F2
76
Display
Lamp/Message
Phenomenon Detail
CRUM read/write error
Section
Developing
Case 1
Cause
Improper connection or
disconnection of the
connector and the harness
between the PCU and the
CRUM.
Check &
Remedy
Check the connector and
the harness between the
PCU and the CRUM.
Case 2
Cause
Developing unit trouble
Check &
Remedy
Replace the developing
unit.
Case 3
Cause
Control PWB (PCU)
trouble
Check &
Remedy
Replace the PCU PWB.
Main
code
Sub
code
Title
Developing unit CRUM trouble
(Yellow)
F2
77
Display
Lamp/Message
Phenomenon Detail
CRUM read/write error
Section
Developing
Case 1
Cause
Improper connection or
disconnection of the
connector and the harness
between the PCU and the
CRUM.
Check &
Remedy
Check the connector and
the harness between the
PCU and the CRUM.
Case 2
Cause
Developing unit trouble
Check &
Remedy
Replace the developing
unit.
Case 3
Cause
Control PWB (PCU)
trouble
Check &
Remedy
Replace the PCU PWB.
Main
code
Sub
code
Title
Trouble of image density sensor
for registration (Transfer belt
surface reflection ratio
abnormality)
F2
78
Display
Lamp/Message
Phenomenon Detail
Before starting registration,
the transfer belt surface is
scanned with the image
density sensor to adjust
the sensor gain so that the
output becomes a fixed
value. However, when the
sensor gain is changed,
the value is not within the
specified range.
Section
—
Case 1
Cause
Image density sensor
trouble, disconnection of
the harness between the
PCU PWB and the image
density sensor, dirt on the
image density sensor.
Check &
Remedy
Check the sensor and the
harness.
Case 2
Cause
Calibration plate solenoid
operation trouble
Check &
Remedy
Check the calibration plate
solenoid operation.
Case 3
Cause
Insufficient cleaning of the
transfer belt.
Check &
Remedy
Check the transfer belt
surface.
Main
code
Sub
code
Title
Half-tone process control 1st
batch trouble (Black)
F2
80
Display
Lamp/Message
Phenomenon Detail
First step operation error
during half-tone process
control
Section
—
Common
Check
Use SIM 44-2 to adjust the
process control sensor
gain.
Case 1
Cause
When "Error" occurs in the
gain adjustment of SIM 44-
2:
1. Disconnection of the
harness between the
PCU PWB and the
image density sensor.
2. Image density sensor
dirt/trouble
Check &
Remedy
1. Check connection of the
harness between the
PCU PWB and the
image density sensor.
2. Clean/replace the
image density sensor.
Case 2
Cause
When SIM 44-2 gain
adjustment is completed:
Insufficient cleaning of the
transfer belt, calibration
plate solenoid operation
trouble
Check &
Remedy
Check the drum surface
and the belt surface.
Summary of Contents for AR-BC320
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