Sc Codes Group 7: Peripherals - Toshiba e-STUDIO4500c Service Manual

SERVICE CALL CONDITIONS

SC codes Group 7: Peripherals

SC701 D Original pick-up operation error
Even though the pick-up motor is rotating
clock-wise, the pick-up roller home position
sensor cannot detect the position of the pick-
up roller.
SC705 D ARDF bottom plate lift motor
SC720 D Finisher lower transport motor error
No encoder pulse signal is
detected for the transport motor
within the prescribed time.
The 1st failure issues an original
jam message, and the 2nd
failure issues this SC code.
SC721 B Finisher jogger motor error
The jogger fences move out of
the home position but the HP
sensor output does not change
within the specified number of
pulses. The 1st failure issues an
original jam message, and the
2nd failure issues this SC code.
The bottom plate HP sensor
did not detect the home
position of the bottom plate
after the bottom plate lift
motor switches ON and
lowers the bottom plate.
The bottom plate position
sensor does not detect the
position of the plate after the
lift motor switches ON and
raises the bottom plate.
ARDF feed motor disconnected,
defective
Bottom plate HP sensor disconnected,
defective
ARDF main board defective
Lower transport motor disconnected,
defective
Finisher connection to transport motor
loose, defective
Lower transport motor defective
Finisher main board defective
Jogger HP sensor disconnected,
defective
Jogger motor disconnected, defective
Jogger motor overloaded due to
obstruction
Finisher main board and jogger motor
connection loose, defective
Finisher main board defective
4-58
April 2007
Pick-up roller HP sensor
harness loose, disconnected,
defective
Pick-up roller HP sensor
defective
Pick-up motor harness loose,
disconnected, defective
Pick-up motor defective
ARDF control board
defective