Resources Contact Us Home
Device having malfunction preventing circuit

Image Number 3 for United States Patent #7944092.

A fixing device fixes a toner image on a recording medium. The fixing device includes a heat source that converts electric power into heat and a fixing member that gives the heat generated by the heat source to the recording medium on which the toner image is formed. The fixing device includes a safety circuit that forcibly interrupts voltage supplied from a power supply to the heat source if the temperature in the device detected by a temperature detection sensor exceeds reference temperature. The fixing device has a malfunction preventing circuit that stops the operation of the safety circuit in order to prevent the voltage supplied to the heat source from being forcibly interrupted when the voltage of the power supply supplied to the heat source is unstable.

  Recently Added Patents
Sleeve piston for actuating a firearm bolt carrier
LED lamp module
Wiper lifter
Methods and systems for evaluating a design of an aircraft
Active radiation curable ink composition for inkjet recording, printed matter, method of manufacturing printed matter, molded article of printed matter, and method of manufacturing molded arti
Liquid crystal display device and method of manufacturing the same
  Randomly Featured Patents
Self contained power system for controllable refueling drogues
Thermostat device
Process for the preparation of silver halide emulsions
Baseball gloves
Separations-of-duties analysis tool for object-oriented integrated enterprise wide computing applications
Two sided colonial grid assembly such as a door, window or like closure
Apparatus for assembling vehicle bodies
Heating circuit for a thermal recording-pen
Data converter for a lighting system, and method for operating a lighting system
U-bolt clamp saddle