Patent ID: 9081341
Filing Date: 2015-07-14
Classification: G03G

Abstract:
1. An image heating apparatus comprising: a rotatable heating member configured to heat a toner image formed on a sheet by using a toner containing a wax; an exciting coil configured to cause said heating member to generate heat by electromagnetic induction heating; a magnetic flux suppressing member configured to suppress a part of magnetic flux actable from said exciting coil onto said heating member; a rotatable screw shaft configured to hold said magnetic flux suppressing member and configured to slide said magnetic flux suppressing member along a longitudinal direction of said heating member; and a controller configured to control a rotational movement operation of said screw shaft so that said magnetic flux suppressing member is placed in a position depending on a width size of the sheet, wherein said controller is, during non-image heating, configured to execute an operation in a mode in which said screw shaft is rotationally moved so that said magnetic flux suppressing member is reciprocated at least once in a predetermined range.