Self Diagnostics - Sharp AR-280 Service Manual

2. Self diagnostics

Trouble code
Main Sub
code code
C1 00 Content MC trouble
Detail Main charger output error (output
released)
Trouble signal from high-voltage
transformer
Cause Main charger improperly installed
Main charger improperly assembled
High-voltage transformer connector
removed
High-voltage harness removed or wire
broken
Check Check main charger output with SIM8-2.
and Check main charger connector for
remedy disconnection.
Replace high-voltage unit.
C2 00 Content TC trouble
Detail Transfer charger output error (output
short-circuiting)
Trouble signal from high-voltage
transformer
Cause Transfer charger contaminated with
foreign matter
Transfer charger wire broken
High-voltage transformer connector
disconnected
Check Check transfer charger output with
and SIM8-6.
remedy Replace high-voltage unit.
E7 00 Content ICU communication trouble (ICU
detection)
Detail Communication setup error,
framing/parity/protocol error
Cause Slave unit PWB connector improper
connection
Slave unit PWB – ICU PWB harness
trouble
Connector pin breakage of the motor
PWB of the slave unit PWB
Slave unit ROM trouble. no ROM, ROM
reverse insertion, ROM pin breakage
Check Connect the connector of the slave unit
and PWB and the ICU PWB.
remedy Check the connection and the harness.
Check the grounding of the copier.
Check the ROM of the slave unit PWB.
01 Content Image data memory trouble
Detail The ICU image data memory (SIMM) is
detected only as 8MB or less.
The SIMM capacity is insufficient for the
model.
Cause The ICU PWB SIMM is not installed.
The ICU PWB SIMM does not work
properly.
The ICU PWB SIMM is not installed
properly.
ICU PWB abnormality
Check Check installation of the ICU PWB SIMM.
and Check the SIMM capacity with SIM
remedy 22-10.
Replace the ICU PWB SIMM.
7/13/2000
Description
Trouble code
Main Sub
code code
E7 02 Content Laser trouble
Detail
Cause
Check
and
remedy
03 Content HDD trouble
Detail
Cause
Check
and
remedy
10 Content Shading trouble (black correction)
Detail
Cause
Check
and
remedy
11 Content Shading trouble (white correction)
Detail
Cause
Check
and
remedy
9 – 2
Description
BD signal from LSU kept at OFF or ON
Connector to LSU or harness inside LSU
disconnected or wire broken
Polygon motor improperly rotating
Laser home position sensor improperly
positioned inside LSU
Laser power supply line does not have
proper voltage
Laser LED improperly lighting
ICU PWB error
Check LSU connector for disconnection.
Check LSU operation with SIM61-1.
Check polygon motor for rotation.
Check laser LED for lighting.
Replace LSU unit.
Replace ICU PWB.
HDD is not recognized in the model with
HDD installed.
The HDD is not installed to the ICU PWB.
The HDD does not work properly in the
ICU PWB.
The HDD is not installed to the ICU PWB
properly.
ICU PWB abnormality
Check installation of the HDD to the ICU
PWB.
Check connection of the HDD harness to
the ICU.
Replace the HDD.
Replace the ICU PWB.
Improper CCD black reading level for
copy lamp going out
Improper installation of flat cable to CCD
unit
CCD unit error
ICU PWB error
Check flat cable to CCD unit for
installation.
Check CCD unit.
Check ICU PWB.
Improper CCD white reference plate
reading level for copy lamp lighting
Improper installation of flat cable to CCD
unit
Mirror, lens or reference white plate
contaminated
Copy lamp operation error
Improperly installed CCD unit
CCD unit error
ICD PWB error
Clean mirror, lens, or reference white
plate.
Check copy lamp for light amount
(SIM5-3) and lighting.
Check CCD unit.
Check ICU PWB.