741 B
Finisher corner stapler rotation motor error
The stapler does not return to its home
position within the specified time after
stapling. The 1st detection failure issues
a jam error, and the 2nd failure issues
this SC code.
• Stapler rotation motor disconnected, de-
fective
• Stapler rotation motor overloaded due to
obstruction
• Stapler rotation HP sensor disconnected,
defective
742 B
Finisher stapler movement motor error
The stapler HP sensor is not activated
within the specified time after the sta-
pler motor turned on. The 1st detection
failure issues a jam error, and the 2nd
failure issues this SC code.
• Stapler movement motor disconnected,
defective
• Stapler movement motor overloaded due
to obstruction
• Stapler HP sensor disconnected, defective
743 B
Booklet stapler motor error 1
The front stapler unit saddle-stitch mo-
tor does not start operation within the
specified time. The 1st detection failure
issues a jam error, and the 2nd failure
issues this SC code.
• Front motor disconnected, defective
• Front motor overloaded due to obstruction
744 B
Booklet stapler motor error 2
The rear stapler unit saddle-stitch motor
does not start operation within the
specified time. The 1st detection failure
issues a jam error, and the 2nd failure
issues this SC code.
• Rear motor disconnected, defective
• Rear motor overloaded due to obstruction
750 B
Finisher tray 1 (upper tray lift) motor error
The upper tray paper height sensor
does not change its status with the
specified time after the tray raises or
lowers. The 1st detection failure issues
a jam error, and the 2nd failure issues
this SC code.
• Tray lift motor disconnected, defective
• Upper tray paper height sensor discon-
nected, defective
• Finisher main board connection to motor
loose
Service Mode
269
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