HP LaserJet P3010 Series - Fuser protective function

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Fuser protective function
The protective function detects an abnormal temperature rise of the fuser unit and interrupts power
supply to the fuser heater.
The following three protective components prevent an abnormal temperature rise of the fuser heater:
●
DC controller
◦
The DC controller interrupts power supply to the fuser heater when it detects an abnormal
temperature of the fuser heater.
●
Fuser heater safety circuit
◦
The fuser heater safety circuit interrupts power supply to the fuser heater when the detected
temperature of the main and sub thermistors is abnormal.
●
Thermoswitch
◦
The contact of the thermoswitch is broken to interrupt power supply to the fuser heater when
the thermoswitch detects an abnormal temperature of the fuser heater.
ENWW Engine-control system 19