Gestetner A193 Service Manual page 500

SC CODE DESCRIPTIONS
SC302: Charge roller current leak (A193/A224)
-Definition- [B]
A charge roller current leak signal is detected.
- Possible causes -
•
Charge roller damaged
•
Charge high voltage supply board defective
•
Poor connection of the PCU
SC306: Charge roller home position error (A193/A224)
-Definition- [B]
The charge roller home position sensor does not detect the on condition.
- Possible causes -
•
Charge roller home position sensor defective
•
Charge roller contact clutch defective
SC320: Polygon motor error (A193/A224)
-Definition- [B]
The polygon motor does not reach its operating speed within 10 seconds
after the polygon motor on signal, or the lock signal is not detected for more
than 40 ms continuously during operation.
- Possible causes -
•
Polygon motor defective
•
Poor connection of the interface harness which connects the polygon
motor driver and the IOCSS board
•
IOCSS board defective
SC321: No laser start signal (F-GATE error) (A193/A224)
NOTE: This SC code is only for copy mode.
- Definition- [B]
The CPU does not detect the laser start signal (F-GATE) after the copy paper
reaches the registration sensor.
- Possible causes -
•
BiCU board defective
•
MSU board defective
A224 13-66 SM