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
Method and apparatus for managing backup channel in multi-channel environment
Method and system for reciprocal mixing cancellation of wideband modulated blockers
Method and apparatus for interactive distribution of digital content
Semiconductor power amplifier
Potato cultivar F10
System and method for outputting virtual textures in electronic devices
Image heating device
  Randomly Featured Patents
Backlight unit, liquid crystal display module using the same, and method of selecting viewing angle using the same
Method for reducing self discharge in an electrochemical cell
Orientation of ordered liquids and their use in devices
Chlorinator for wastewater treatment systems
Device and method for vascular filter
Liquid absorbent material
Halophenoxyphosphazene fire retardants
Procedure for separating arsenic from waste material
Methods of operating DRAM devices having adjustable internal refresh cycles that vary in response to on-chip temperature changes
Method for use of attachment device and system for corneal irrigating cannula