Ricoh FT6645 Manual page 370

SERVICE CALL CONDITIONS
SC601 - Communication error (main control board and optics control
board)
Definition: [level: D]
The main control board does not communicate with the optics control board.
Possible causes:
•
Main control board defective
•
Optics control board defective
•
Harness defective
SC602 - Communication error (main control board and high voltage
control board)
Definition: [level: D]
The main control board does not communicate with the high voltage control
board.
Possible causes:
•
Main control board defective
•
High voltage control board defective
•
Harness defective
SC603 - Main control board malfunction (CPU)
Definition: [level: D]
Communication to the main control board is not completed.
Possible causes:
•
Main control board defective
SC620 - Communication error (main control board and DJF/RDH main
board)
Definition: [level: B]
The main board does not communicate with the DJF/RDH main board.
Possible causes:
•
Main control board defective
•
DJF/RDH main board defective
•
Harness defective
•
Fiber optics defective
6-18
12 April 1993