15 February 2006 B064 SERIES SERVICE MODE
4-27
Trouble-
shooting
SC No. Symptom Possible Cause
Finisher stapler rotation motor error 727 B
The stapler motor switches on but
the motor does not return to the
home position within the prescribed
number of pulses. After 2 counts,
the SC is logged as a jam.
• Stapler rotation motor defective
• Poor stapler rotation motor connection
• Stapler rotation sensor defective
• Finisher main board defective
• Rotation motor overload
Finisher punch motor error 729 D
The punch HP sensor does not
activate within the prescribed time
the punch motor turns on.
• Punch HP sensor defective
• Sensor harness disconnected, defective
• Punch motor defective
• Finisher main board defective
• Poor punch motor overload
Finisher stapler movement motor error 730 B
The stapler HP sensor does
activate within the prescribed time
after the stapler motor turns on and
moves the stapler away from home
position. After 2 counts, the SC is
logged as a jam.
• Stapler HP sensor defective
• Sensor harness disconnected, defective
• Stapler movement motor defective
• Finisher main board defective
• Stapler movement motor overload
Finisher shift roller motor error 732 B
The shift roller HP sensor does not
activate within the prescribed time
after the shift roller motor turns on.
After 2 counts, the SC is logged as
a jam.
• Shift roller HP sensor defective
• Sensor harness disconnected, defective
• Shift roller motor defective
• Finisher main board defective
• Shift roller motor overload
Finisher lower tray lift motor error 733 D
After the lift motor switches on to lift
the tray, paper height sensor 2
does not detect the top of the paper
stack, or after the motor reverses to
lower the stack the top of the stack
remains detected (the status of
paper height sensor 1 does not
change). After 2 counts, the SC is
logged as a jam.
• Paper height sensor 1 or 2 defective
• Sensor harness disconnected, defective
• Tray lift motor defective
• Finisher main board defective
• Tray lift motor overload
Finisher pre-stack motor error 735 B
• The pre-stack motor starts but
does not return to the home
position within 400 pulses. After
2 counts, the SC is logged as a
jam.
• Motor does not return to the
home position within 280 pulses
immediately before or after pre-
stacking. After 2 counts, the SC
is logged as a jam.
• Jogger HP sensor defective
• Sensor harnesses disconnected,
defective
• Pre-stack motor defective
• Finisher main board defective
• Pre-stack motor overload
Finisher paper exit guide plate motor error 736 B
The paper exit guide plate motor
starts but the paper exit guide plate
HP sensor does not activate within
750 ms. After 2 counts, the SC is
logged as a jam.
• Guide plate HP sensor defective
• Sensor harness disconnected, defective
• Paper exit guide plate motor defective
• Finisher main board defective
• Guide plate motor overload.