Service manual

SC TABLE
SM 4-29 G130/G131
SC No. Item Definition Possible Cause
Related
SCs
Troubleshooting Procedure Type
SC 740 Booklet finisher
transport motor
error
• The folder home position
sensor does not turn off
within 2 seconds after the
folder rollers start to move.
• The folder home position
sensor does not turn on
within 2 seconds after the
folder rollers start
transporting the paper to the
booklet tray.
• Defective transport
motor
• Loose connection of
the transport motor
• Defective folder home
position sensor
• Loose connection of
the holder home
position sensor
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.
B
SC 741 Booklet finisher
paddle motor
error
• The paddle home position
sensor does not turn off
within 2 seconds after the
paddles start to move.
• The paddle home position
sensor does not turn on
within 2 seconds after the
paddles start to operate.
• The stack-tray upper roller
home position sensor does
not turn off within 2 seconds
after the paddle motor starts
to lower the roller.
• The stack-tray upper-roller
home-position sensor does
not turn on with in 2 seconds
after the paddle motor starts
to lower the roller.
• Defective paddle motor
• Loose connection of
the paddle motor
• Defective paddle home
position sensor
• Loose connection of
the paddle home
position sensor
• Defective stack-tray
upper-roller home-
position sensor
• Loose connection of
the stack-tray upper-
roller home-position
sensor
1. Turn the main switch off and on.
2. Check that the connection of the
paddle motor.
3. Check the connection of the paddle
home position sensor.
4. Check the connection of the stack-
tray upper-roller home-position
sensor.
5. Replace the paddle motor.
B