Gestetner A193 Service Manual page 268

SC506: Paper tray unit main motor lock (optional paper tray unit
only)
-Definition- [C]
A main motor lock signal is detected for more than 5 seconds or the lock
signal is not detected for more than 5 seconds during rotation.
- Possible causes -
•
Paper tray unit main motor defective
•
Too much load on the drive mechanism
SC542: Fusing temperature warm-up error
-Definition- [A]
The fusing temperature does not reach the fusing standby temperature
within 50 seconds after the main switch is turned on.
- Possible causes -
•
Fusing thermistor defective or out of position
•
Fusing lamp open
•
Fusing thermofuse open
•
Power supply board defective
•
Poor connection of the fusing unit
SC543: Fusing overheat error
-Definition- [A]
A fusing temperature of over 231°C is detected for 1 second by the fusing
thermistor.
- Possible causes -
•
Fusing thermistor defective
•
Power supply board defective
SC544: Fusing low temperature error
-Definition- [A]
A fusing temperature of lower than 100°C is detected for 1 second by the
fusing thermistor.
- Possible causes -
•
Fusing thermistor defective
•
Power supply board defective
SM
SC CODE DESCRIPTIONS
6-7 (A193)