Savin SLP20 Manual de servicio Pagina 179

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PRINTER ENGINE SC CODES
SM 7-7 G031/G032
Trouble-
shooting
SC322: Laser Synchronization Error
Definition:
The laser synchronization signal cannot be detected by the main scan
synchronization detector board for more than 4 consecutive 100 ms intervals.
Possible Causes:
Laser synchronization detector out of position
Laser synchronization detector defective
Engine control board defective
SC500: Main Motor Error
Definition:
A main motor lock signal is detected for more than 1 second or the lock signal
is not detected for more than 500 ms during rotation.
Possible Causes:
Too much load on the drive mechanism
Main motor defective
SC542: Fusing Temperature Warm-up Error
Definition:
The fusing temperature does not reach 80
°
C within 60 seconds after the main
switch is turned on or after the covers have been closed. Or, during warming-
up, the fusing temperature does not change by at least 3
°
C within 5 seconds.
Possible Causes:
Fusing thermistor defective or out of position
Fusing lamp open
Fusing thermofuse open
Power supply unit defective
Poor fusing unit connection
Engine control board defective
SC543: Fusing High Temperature Error
Definition:
A fusing temperature of over 230
°
C is detected for 1 second by the fusing
thermistor.
Possible Causes
Fusing thermistor defective
Power supply unit defective
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