Ricoh FT8680 Service Manual page 384

SYSTEM ERROR AND SERVICE CALL CONDITIONS
SC720 - Sorter By-pass Tray Gate Motor Overload
Definition:
The sorter main PCB cannot detect the on signal from the by-pass tray home
position and gate position sensors when the by-pass tray gate motor
operates.
Points to check:
•
Mechanical interference with the by-pass tray gate drive
•
Tray gate home position sensor
•
Tray gate upper position sensor
•
By-pass tray gate motor
•
Sorter main PCB
SC721 - Sorter Main Motor Overload
Definition:
The sorter main PCB cannot detect any pulses from the main motor
encoder within 0.1 second when the main motor is activated.
Points to check:
•
Mechanical interference with the main motor
•
Main motor
•
Sorter main PCB
SC722 - Sorter Jogger Home Position Sensor Failure
Definition:
The sorter main PCB cannot detect the home position signals from the
following sensors when they are actuated:
Jogger home position sensor
Jogger unit home position sensor
Slide bar home position sensor
Points to check:
•
Each home position sensor
•
Mechanical interference with each sensor actuation
•
Jogger unit positioning motor
•
Jogger motor
•
Slide bar motor
•
Sorter main PCB
6-22
31 July 1995