Ricoh J-P3 Service Manual page 82

SC TABLE
SC No. Item
SC 621 Two-tray While the BCU communicates
finisher/booklet with an optional unit, an SC
finisher code is displayed if one of
communication
following conditions occurs.
error
1. The BCU receives a signal
SC 622 Bank
communication
error
SC 623 Duplex unit
2. When the BCU does not
communication
error
SC 740 Booklet finisher • The folder home position
transport motor
error
• The folder home position
Definition
• Cable problems
• BCU problems
• PSU problems in the
• Main board problems
which is generated by the
peripherals only just after
the main switch is turned
on.
• Cable problems
• BCU problems
receive an OK signal from a
• PSU problems in the
peripheral 100 ms after
sending a command to it.
• Duplex control board
The BCU resends the
command. The BCU does
not receive an OK signal
after sending the command
3 times.
• Defective transport
sensor does not turn off
within 2 seconds after the • Loose connection of
folder rollers start to move.
• Defective folder home
sensor does not turn on
within 2 seconds after the
• Loose connection of
folder rollers start
transporting the paper to the
booklet tray.
Related
Possible Cause
SCs
machine
in the peripherals
machine
problem
motor
the transport motor
position sensor
the holder home
position sensor
4-8
Troubleshooting Procedure
1. Turn the main switch off and on.
2. Check if the cables of peripherals are
properly connected.
3. Replace the PSU if no power is
supplied to peripherals.
4. Replace the BCU or main board of
peripherals.
1. Turn the main switch off and on.
2. Check if the cable of the duplex
inverter unit is properly connected.
3. Replace the PSU if no power is
supplied to the peripherals.
4. Replace the duplex control board in
the inverter unit.
1. Turn the main switch off and on.
2. Check the connection of the transport
motor.
3. Check the connection of the folder
home position sensor.
4. Replace the transport motor.
20 February 2004
Type
D
D
B