Patent ID: 7106987

Claim:
An image heating apparatus comprising; a coil for generating a magnetic flux; a heat generation member for generating heat by the magnetic flux generated by said coil to heat an image on a recording material; a temperature detecting member for detecting a temperature of said heat generation member; electric power control means for controlling electric power to be applied to said coil by switching a level of the electric power applied to said coil in accordance with an output of said temperature detecting member; electric power supply stop means for stopping supply of the electric power to said coil when the output of said temperature detecting member is indicative of a temperature exceeding an abnormal temperature which changes in accordance with detection timing of said temperature detecting member, in a period from start of the supply of the electric power to said coil by actuation of a main switch to reaching of a temperature of said heat generation member to a set temperature for image heating; and abnormal temperature correcting means for correcting setting of said abnormal temperature in accordance with the switching of the electric power to said coil.