Service Call Tables
D093/D094 7-26 SM
557 C Applied zero-cross waveform error
The applied power ac frequency was detected less than 66 Hz more than
10 times.
Noise on the ac power supply line
559 A Fusing paper jam errors
Three consecutive paper jam errors occurred in the fusing unit.
Note: This SC code is not issued unless SP1159 is switched on.
Paper jam in fusing unit
Pick-off pawl defective
Paper scraps in fusing unit
Exit sensor defective
561 A Pressure roller end thermistor error 1
During the hot roller temperature control sequence, or while the hot roller
and pressure roller were rotating, the center thermistor on the pressure roller
returned a digital reading of more than 3.3V.
Pressure roller center thermistor not positioned properly
Pressure roller center thermistor connector loose, broken, defective
Pressure roller end thermistor defective
MCU defective
563 A Pressure roller end thermistor error 2
During the hot roller temperature control sequence, the end thermistor on the
pressure roller returned a digital reading of less than 0.2V.
Pressure roller end thermistor connector loose
Pressure roller end thermistor short circuit, defective
MCU defective
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