Ricoh LDD280 Service Manual page 240

SERVICE CALL CODE TABLE
Code Title
SC506 Wing guide motor
lock (Wing lower
position error)
SC507 Wing guide motor
lock (Wing Upper
position error)
SC508 Slider lift motor
lock (paper
sensor)
SC509 Slider lift motor
lock (Slider upper
limit sensor)
SC510 Job Separator
motor lock (Slider
HP sensor)
SC511
Job Separator
motor lock (Slider
position sensor)
C262/C265
Conditions
When the wing guide moves
upwards, the sensor is not de-
activated for more than 6 seconds
after the wing guide motor on
signal is generated.
When the wing guide moves
downwards, the sensor is not
activated for more than 6 seconds
after the wing guide motor on
signal is generated.
When the wing guide moves
upwards, the sensor is not
activated for more than 6 seconds
after the wing guide motor on
signal is generated.
When the wing guide moves
downwards, the sensor is not de-
activated for more than 6 seconds
after the wing guide motor on
signal is generated.
When the slider moves downwards,
the sensor is not activated for more
than 7 seconds after the slider lift
motor on signal is generated.
When the slider moves upwards,
the sensor is not de-activated for
more than 9 seconds after the
slider lift motor on signal is
generated.
When the slider moves upwards,
the sensor is not activated for more
than 9 seconds after the slider lift
motor on signal is generated.
When the slider moves downwards,
the sensor is not de-activated for
more than 9 seconds after the
slider lift motor on signal is
generated.
When the slider moves toward the
delivery table, the sensor is not de-
activated for more than 5 seconds
after the job separator motor on
signal is generated.
When the slider returns, the sensor
signal does not change status for
more than 5 seconds after the job
separator motor on signal is
generated.
4-6
Possible Causes
• Defective sensor
• Defective motor
• Defective wing guide
• Overrunning of the
sensor slit
• Defective sensor
• Defective motor
• Defective wing guide
• Defective sensor
• Defective motor
• Defective ECU baord
• Motor belt has come off
• Defective sensor
• Defective motor
• Defective ECU board
• Mechanism blocked by
foreign material
• Defective sensor
• Defective motor
• Defective ECU board
• Mechanism blocked by
foreign material
• Defective sensor
• Defective motor
• Defective ECU board
• Mechanism blocked by
foreign material
• The cover pad over-runs
its correct position
SM