Patent ID: 7205514

Claim:
An image heating apparatus comprising: a coil for generating a magnetic flux by electric power supply thereto; an image heating member for heating an image on a recording material by heat generation using the magnetic flux generated by said coil; magnetic flux adjusting means for adjusting a distribution of the magnetic flux directed from said coil toward said heat generation member in a direction perpendicular to a feeding direction of the recording material; moving means for moving said magnetic flux adjusting means to a position for making smaller the magnetic flux directed from said coil toward said heat generation member at an end portion of said image heating member than at a middle portion; switching means for switching a number of recording materials per unit time to reduce the number of the recording materials having a length, measured in the perpendicular direction, smaller than a maximum usable length as measured in the perpendicular direction; and operation control means for enabling an operation of said moving means during operation of said switching means.