Read Sharp AR-275 (serv.man10) Service Manual online
AR-235/275 TROUBLE CODE LIST - 3
E1
84
Content
IMC PWB communication trouble
(Framing)
(Framing)
Details
Communication trouble between MCU and
IMC PWB (Framing error)
IMC PWB (Framing error)
Cause
IMC PWB connector disconnection
IMC PWB MCU PWB harness failure
Motherboard connector pin breakage
IMC PWB ROM defect, data failure
IMC PWB MCU PWB harness failure
Motherboard connector pin breakage
IMC PWB ROM defect, data failure
Check
and
remedy
and
remedy
Check the connectors and harness of the
IMC PWB and MCU PWB.
Check the grounding of the copier.
Check the ROM of the IMC PWB.
IMC PWB and MCU PWB.
Check the grounding of the copier.
Check the ROM of the IMC PWB.
88
Content
IMC PWB communication trouble (Time-
out)
out)
Details
Communication trouble between MCU and
IMC PWB (Time-out error)
IMC PWB (Time-out error)
Cause
IMC PWB connector disconnection
IMC PWB MCU PWB harness failure
Motherboard connector pin breakage
IMC PWB ROM defect, data failure
IMC PWB MCU PWB harness failure
Motherboard connector pin breakage
IMC PWB ROM defect, data failure
Check
and
remedy
and
remedy
Check the connectors and harness of the
IMC PWB and MCU PWB.
Check the grounding of the copier.
Check the ROM of the IMC PWB.
IMC PWB and MCU PWB.
Check the grounding of the copier.
Check the ROM of the IMC PWB.
E7
02
Content
LSU trouble
Details
BD signal from LSU is not detected in a
constant cycle. (Kept OFF or ON)
constant cycle. (Kept OFF or ON)
Cause
LSU connector or LSU inside harness
trouble or disconnection
Polygon motor rotation abnormality
Laser does not illuminate.
MCU PWB failure
trouble or disconnection
Polygon motor rotation abnormality
Laser does not illuminate.
MCU PWB failure
Check
and
remedy
and
remedy
Check for disconnection of the LSU
connector.
Check the LSU operation with SIM 61-1.
Check that the polygon motor rotates
normally.
Check laser LED lighting.
LSU replacement
Replace the MCU PWB.
connector.
Check the LSU operation with SIM 61-1.
Check that the polygon motor rotates
normally.
Check laser LED lighting.
LSU replacement
Replace the MCU PWB.
10
Content
Shading trouble (black correction)
Details
CCD black reference plate scan level
abnormality when the copy lamp turns off.
abnormality when the copy lamp turns off.
Cause
Flat cable installation failure to CCD unit
CCD unit error
CCD unit error
Check
and
remedy
and
remedy
Check flat cable installation to the CCD
unit.
Check CCD unit.
unit.
Check CCD unit.
11
Content
Shading trouble (white correction)
Details
Improper CCD white reference plate
reading level for copy lamp lighting
reading level for copy lamp lighting
Cause
Flat cable installation failure to CCD unit
"Dirt on the mirror, lens, and reference
white plate"
Copy lamp operation error
CCD unit abnormality
MCU PWB abnormality (Occurred in the
SPF scan position.)
"Dirt on the mirror, lens, and reference
white plate"
Copy lamp operation error
CCD unit abnormality
MCU PWB abnormality (Occurred in the
SPF scan position.)
Check
and
remedy
and
remedy
"Clean the mirror, the lens, and the
reference white plate."
Check the copy lamp light quantity and its
operation. (SIM 5-3)
Check CCD unit.
Check MCU PWB.
reference white plate."
Check the copy lamp light quantity and its
operation. (SIM 5-3)
Check CCD unit.
Check MCU PWB.
Trouble
code
Details of trouble
Main
code
code
Sub
code
E7
12
Content
Shading trouble
Details
White correction is not completed in the
specified number of times.
specified number of times.
Cause
Flat cable installation failure to CCD unit
"Dirt on the mirror, lens, and reference
white plate"
Copy lamp lighting trouble
CCD unit abnormality
MCU PWB abnormality
"Dirt on the mirror, lens, and reference
white plate"
Copy lamp lighting trouble
CCD unit abnormality
MCU PWB abnormality
Check
and
remedy
and
remedy
"Clean the mirror, the lens, and the
reference white plate."
Check the copy lamp light quantity and its
operation. (SIM 5-3)
Check CCD unit.
Check MCU PWB.
reference white plate."
Check the copy lamp light quantity and its
operation. (SIM 5-3)
Check CCD unit.
Check MCU PWB.
F1
00
Content
Finisher communication trouble
Details
Communication line test error occurs when
power is turned on or after the exit of a
simulation mode.
Error in Finisher communication
power is turned on or after the exit of a
simulation mode.
Error in Finisher communication
Cause
Connection trouble or disconnection of the
connector and harness between the body
and the finisher.
Finisher control PWB trouble
Control PWB failure
Malfunction by noises
connector and harness between the body
and the finisher.
Finisher control PWB trouble
Control PWB failure
Malfunction by noises
Check
and
remedy
and
remedy
Turn off/of the power to cancel the trouble.
Check connector/harness of
communication line
Replace the finisher control PWB.
Check connector/harness of
communication line
Replace the finisher control PWB.
01
Content
Side guide plated home position error
Details
The side guide plate cannot return to the
home position.
home position.
Cause
Side guide plate drive motor abnormality
Side guide plate home position sensor
abnormality
Side guide plate home position sensor
abnormality
Check
and
remedy
and
remedy
Use SIM3-3-1 to check the side guide
plate motor operation.
plate motor operation.
06
Content
Offset motor trouble
Details
When the offset motor of the finisher is
driven it does not reach the specified
position.
driven it does not reach the specified
position.
Cause
Offset motor abnormality
Offset motor origin sensor abnormality
Finisher PWB abnormality
Offset motor origin sensor abnormality
Finisher PWB abnormality
Check
and
remedy
and
remedy
Use SIM 3-3-6 to check the offset motor
operation.
operation.
08
Content
Staple motor error
Details
The staple motor cannot return to the
home position.
home position.
Cause
Staple motor abnormality
Staple motor home position sensor
abnormality
Staple unit abnormality
Staple motor home position sensor
abnormality
Staple unit abnormality
Check
and
remedy
and
remedy
Use SIM 3-3-7 to check the staple motor
operation.
operation.
Trouble
code
Details of trouble
Main
code
code
Sub
code
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