Ricoh FT4227 Manual page 609

SERVICE CALL CONDITIONS
3.29 CODE #92 - TOTAL COUNTER SHORT
- Definition -
The CPU always receives a total counter reed switch on signal.
- Possible Cause -
•
Total counter defective
3.30 CODE #93 - INTERFACE SIGNAL ERROR
- Definition -
Main CPU does not receive a response signal from the I/O CPU.
- Possible Cause -
•
Main control board defective
•
Electrical noise resulting in a communication error between the
CPU's on the main control board
3.31 CODE #94 - EDITOR SIGNAL ERROR
- Definition -
An interface communication error occurs between the main CPU and the
editor board.
- Possible Cause -
•
Editor board defective
•
Main control board defective
3.32 CODE #95 - AREA CODE DETECTION ERROR
- Definition -
The CPU cannot recognize the area code from the diode matrix signal from
the operation panel.
- Possible Cause -
•
Operation panel board defective
•
Main control board defective
6-34
12 February 1992