Ricoh SP5 Series Service Manual page 386

SERVICE CALL CONDITIONS
SC303-02: Charge corona wire cleaner error 2
-Definition- [B]
The charge corona wire cleaner motor connector is not connected.
- Possible causes -
• The charge corona wire cleaner motor connector is not connected.
SC320: Polygon motor error
-Definition- [B]
The polygon motor does not reach its operating speed within 20 seconds after
the polygon motor on signal, or the lock signal is still activated for more than 20
seconds after the polygon motor off signal.
- Possible causes -
• Polygon motor defective
• Poor connection between the polygon motor driver and the SBICU board
• SBICU board defective
SC321: No laser writing signal (F-GATE) error 1
- Definition- [B]
The laser writing signal (F-GATE) does not go to LOW for more than 15 seconds
after the copy paper reaches the registration sensor.
- Possible causes -
• SBICU board defective
• Poor connection of the printer controller
• Printer controller defective
SC322: 1st laser synchronization error
-Definition- [B']
The 1st laser synchronization signal cannot be detected by the main scan
synchronization detector board even if the laser diodes are activated.
- Possible causes -
• Poor connection between the laser synchronization detector board and the
LD unit
• Laser synchronization detector board out of position
• Laser synchronization detector board defective
• LD unit defective
7-4
June 30, 1998