Toshiba e-STUDIO4500c Service Manual page 439

April, 2007
SC743 B Booklet stapler motor error 1
The front 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.
SC744 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.
SC750 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.
SC751 B Finisher tray 2 (lower tray lift) motor error
The lower 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.
SC752 B Finisher pressure plate motor error
Pressure plate motor operating
but the plate is not detected at
the home position within the
specified time. The 1st detection
failure issues a jam error, and
the 2nd failure issues this SC
code.
SERVICE CALL CONDITIONS
Front motor disconnected, defective
Front motor overloaded due to
obstruction
Rear motor disconnected, defective
Rear motor overloaded due to
obstruction
Tray lift motor disconnected, defective
Upper tray paper height sensor
disconnected, defective
Finisher main board connection to motor
loose
Finisher main board defective
Tray lift motor disconnected, defective
Upper tray paper height sensor
disconnected, defective
Finisher main board connection to motor
loose
Finisher main board defective
Pressure plate HP sensor disconnected,
defective
Pressure plate motor disconnected,
defective
Pressure plate motor overloaded due to
obstruction
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