Patent ID: 7522854
Filing Date: 2009-04-21
Classification: G03G

Abstract:
1. A fixing apparatus of an image forming apparatus comprising: an endless heating member having a metallic conductive layer; a pressure member pressed to the heating member to form a nip to hold and convey a medium to be fixed having a toner image in a predetermined direction together with the heating member; an induction heating coil arranged on an outer periphery of the heating member to generate an induced current in the metallic conductive layer; a temperature sensor for detecting a temperature of a passing area of the heating member through the nip; and a controller to control the induction heating coil so as to return the heating member to a predetermined temperature before the nip passing area of the heating member next reaches the nip, wherein the heating member is a fixing belt, and the temperature sensor and the induction heating coil are sequentially arranged on a downstream side of the nip in a rotational direction of the fixing belt, and when a rotational speed of the fixing belt is assumed as S