Read Sharp AR-405 (serv.man13) Service Manual online
Trouble code
Description
Main
code
code
Sub
code
U5
02
Content RADF eject/inversion sensor defective
Detail
Detail
RADF eject/inversion sensor detection
trouble
trouble
Cause
Defective sensor
Improper connection of sensor harness
inside RADF.
RADF control PWB defective
Improper connection of sensor harness
inside RADF.
RADF control PWB defective
Check
and
remedy
and
remedy
Check eject/inversion sensor detection
with SIM2-2.
Check sensor harness inside RADF.
with SIM2-2.
Check sensor harness inside RADF.
03
Content RADF timing sensor defective
Detail
Detail
RADF timing sensor detection trouble
Cause
Defective sensor
Improper connection of sensor harness
inside RADF
RADF control PWB defective
Improper connection of sensor harness
inside RADF
RADF control PWB defective
Check
and
remedy
and
remedy
Check timing sensor detection with
SIM2-2.
Check sensor harness inside RADF.
SIM2-2.
Check sensor harness inside RADF.
11
Content Paper feed motor operation error
Detail
Detail
Paper feed motor driving error
Cause
Motor lock
Improper motor speed
Overcurrent to motor
RADF control PWB defective
Improper motor speed
Overcurrent to motor
RADF control PWB defective
Check
and
remedy
and
remedy
Check paper feed motor operation with
SIM2-3,4.
SIM2-3,4.
U6
00
Content Desk communication trouble
Detail
Detail
Failed communication with desk
Communication line test error occurs
when power is turned on or after the exit
of a simulation mode.
Communication line test error occurs
when power is turned on or after the exit
of a simulation mode.
Cause
Improper connection or broken wire of
connector or harness
Desk control PWB defective
Control PWB (PCU) defective
Malfunction due to noise.
connector or harness
Desk control PWB defective
Control PWB (PCU) defective
Malfunction due to noise.
Check
and
remedy
and
remedy
Clear the trouble by turning the power
supply On/Off.
Check communication line connector
and harness.
supply On/Off.
Check communication line connector
and harness.
01
∼
02
Content Desk 1, 2 CS lift-up trouble
Detail
Detail
Desk cassette lift-up trouble (1st - 3rd
cassettes).
cassettes).
Cause
Defective sensor
RADF control PWB defective
Broken gear
Lift-up motor defective
RADF control PWB defective
Broken gear
Lift-up motor defective
Check
and
remedy
and
remedy
Check lift-up sensor detection with
SIM4-2.
Check lift-up motor with SIM4-3.
SIM4-2.
Check lift-up motor with SIM4-3.
08
Content Desk 24-V power supply error
Detail
Detail
No supply of DC24V to desk
Cause
Improper connection or broken wire of
connector or harness
Desk control PWB defective
Power supply unit defective
connector or harness
Desk control PWB defective
Power supply unit defective
Check
and
remedy
and
remedy
Check power supply line connector and
harness.
Check 24-V voltage on power supply
unit and desk control PWB.
harness.
Check 24-V voltage on power supply
unit and desk control PWB.
Trouble code
Description
Main
code
code
Sub
code
U6
09
Content LCC lift motor trouble
Detail
Detail
LCC lift motor trouble
Cause
Sensor trouble
LCC control PWB trouble
Gear breakage
Lift motor trouble
LCC control PWB trouble
Gear breakage
Lift motor trouble
Check
and
remedy
and
remedy
Check the sensor detection with SIM 4-2.
Check the lift motor operation with SIM
4-3.
Check the lift motor operation with SIM
4-3.
10
Content Desk transport motor trouble
Detail
Detail
Desk transport motor operation trouble
Cause
Motor lock
Improper motor speed
Overcurrent to motor
RADF control PWB defective
Improper motor speed
Overcurrent to motor
RADF control PWB defective
Check
and
remedy
and
remedy
Check transport motor operation with
SIM4-6.
SIM4-6.
20
Content LCC communication trouble
Detail
Detail
LCC communication trouble
Error when power is turned on or in
communication line test after exiting SIM.
Error when power is turned on or in
communication line test after exiting SIM.
Cause
Connector harness improper connection
or disconnection
LCC control PWB trouble
Control PWB (PCU) trouble
Malfunction by noise
or disconnection
LCC control PWB trouble
Control PWB (PCU) trouble
Malfunction by noise
Check
and
remedy
and
remedy
Canceled by turning on the power.
Check the connector and harness of the
communication line.
Check the connector and harness of the
communication line.
21
Content LCC transport motor trouble
Detail
Detail
LCC transport motor operation trouble
Cause
Motor lock
Motor rpm abnormality
Motor overcurrent
LCC control PWB trouble
Motor rpm abnormality
Motor overcurrent
LCC control PWB trouble
Check
and
remedy
and
remedy
Check the transport motor operation with
SIM 4-3.
SIM 4-3.
22
Content LCC 24V power abnormality
Detail
Detail
DC24V not supplied to LCC
Cause
Connector harness improper connection
or disconnection
LCC control PWB trouble
Power unit trouble
or disconnection
LCC control PWB trouble
Power unit trouble
Check
and
remedy
and
remedy
Check the connector and harness of
power line.
Check 24V power in the power unit and
the LCC control PWB.
power line.
Check 24V power in the power unit and
the LCC control PWB.
50
Content Non-support trouble in automatic
detection of option connection (Desk
unit)
unit)
Detail
In automatic detection of option
connection, a non-support desk unit is
detected.
connection, a non-support desk unit is
detected.
Cause
A non-support desk unit is connected to
the copier.
the copier.
Check
and
remedy
and
remedy
Check the desk unit.
AR-405
1/21/1999
11 – 8
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