Ricoh A230 Service Manual page 362

SERVICE CALL CONDITIONS
SC621: Communication error between BICU and finisher
-Definition- [B']
The BICU cannot communicate with the finisher properly.
- Possible causes -
• Poor connection between the BICU board and the finisher main board
• Finisher main board defective
• BICU board defective
SC623: Communication error between BICU and paper tray unit
-Definition- [B']
The BICU cannot communicate with the paper tray unit properly.
- Possible causes -
• Poor connection between the BICU board and the paper tray unit main board
• Paper tray unit main board defective
• BICU board defective
SC624: Communication error between BICU and LCT
-Definition- [B']
The BICU cannot communicate with the LCT properly.
- Possible causes -
• Poor connection between the BICU board and the LCT main board
• LCT main board defective
• BICU board defective
SC630: CSS (RSS) communication error between line adapter and CSS center
Japan only
SC700: ADF original pick-up malfunction
-Definition- [B']
The original stopper H.P sensor does not activate three times consecutively
after the pick-up motor has turned on.
- Possible causes -
• Original stopper H.P sensor defective
• Pick-up motor defective
• Timing belt out of position
• ADF main board defective
A230/A231/A232
7-18
SM