Gestetner A193 Service Manual page 269

SC CODE DESCRIPTIONS
SC546: Fusing ready temperature malfunction
-Definition- [A]
The fusing temperature goes 10 °C below or over the stand-by
temperature after warm-up is completed.
- Possible causes -
•
Thermistor defective
•
Poor connection of the fusing unit
•
Power supply board defective
SC547: Zero cross signal malfunction
-Definition- [A]
Zero cross signals are not detected within a certain period.
- Possible causes -
•
Power supply board defective
•
IOCSS defective
•
BICU defective
SC610: Communication error between IOCSS and duplex unit
-Definition- [B]
The IOCSS board cannot communicate with the duplex unit properly.
- Possible causes -
•
Poor connection of the duplex unit
•
IOCSS board defective
•
Duplex control board defective
SC691: Communication error between BICU and fax controller
-Definition- [B]
The BiCU board cannot communicate with the fax controller properly.
- Possible causes -
•
Poor connection of the interface harness which connects the BiCU board
and the fax controller
•
BICU board defective
•
Fax controller defective
(A193) 6-8 SM