Sharp AR-280 Service Manual page 177

AR-405
Trouble code
Main Sub
code code
U5 02 Content RADF eject/inversion sensor defective
Detail RADF eject/inversion sensor detection
trouble
Cause Defective sensor
Improper connection of sensor harness
inside RADF.
RADF control PWB defective
Check Check eject/inversion sensor detection
and with SIM2-2.
remedy Check sensor harness inside RADF.
03 Content RADF timing sensor defective
Detail RADF timing sensor detection trouble
Cause Defective sensor
Improper connection of sensor harness
inside RADF
RADF control PWB defective
Check Check timing sensor detection with
and SIM2-2.
remedy Check sensor harness inside RADF.
11 Content Paper feed motor operation error
Detail Paper feed motor driving error
Cause Motor lock
Improper motor speed
Overcurrent to motor
RADF control PWB defective
Check Check paper feed motor operation with
and SIM2-3,4.
remedy
U6 00 Content Desk communication trouble
Detail Failed communication with desk
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.
Check Clear the trouble by turning the power
and supply On/Off.
remedy Check communication line connector
and harness.
01 ∼ 02 Content Desk 1, 2 CS lift-up trouble
Detail Desk cassette lift-up trouble (1st - 3rd
cassettes).
Cause Defective sensor
RADF control PWB defective
Broken gear
Lift-up motor defective
Check Check lift-up sensor detection with
and SIM4-2.
remedy Check lift-up motor with SIM4-3.
08 Content Desk 24-V power supply error
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
Check Check power supply line connector and
and harness.
remedy Check 24-V voltage on power supply
unit and desk control PWB.
1/21/1999
Description
Trouble code
Main Sub
code code
U6 09 Content LCC lift motor trouble
Detail
Cause
Check
and
remedy
10 Content Desk transport motor trouble
Detail
Cause
Check
and
remedy
20 Content LCC communication trouble
Detail
Cause
Check
and
remedy
21 Content LCC transport motor trouble
Detail
Cause
Check
and
remedy
22 Content LCC 24V power abnormality
Detail
Cause
Check
and
remedy
50 Content Non-support trouble in automatic
Detail
Cause
Check
and
remedy
11 – 8
Description
LCC lift motor trouble
Sensor trouble
LCC control PWB trouble
Gear breakage
Lift motor trouble
Check the sensor detection with SIM 4-2.
Check the lift motor operation with SIM
4-3.
Desk transport motor operation trouble
Motor lock
Improper motor speed
Overcurrent to motor
RADF control PWB defective
Check transport motor operation with
SIM4-6.
LCC communication trouble
Error when power is turned on or in
communication line test after exiting SIM.
Connector harness improper connection
or disconnection
LCC control PWB trouble
Control PWB (PCU) trouble
Malfunction by noise
Canceled by turning on the power.
Check the connector and harness of the
communication line.
LCC transport motor operation trouble
Motor lock
Motor rpm abnormality
Motor overcurrent
LCC control PWB trouble
Check the transport motor operation with
SIM 4-3.
DC24V not supplied to LCC
Connector harness improper connection
or disconnection
LCC control PWB trouble
Power unit trouble
Check the connector and harness of
power line.
Check 24V power in the power unit and
the LCC control PWB.
detection of option connection (Desk
unit)
In automatic detection of option
connection, a non-support desk unit is
detected.
A non-support desk unit is connected to
the copier.
Check the desk unit.