Patent ID: 6871039

Claim:
An induction heating fixing apparatus comprising: an endless belt-shaped heating target member; an induction current generation mechanism including first and second coils for allowing the member to be heated to generate an eddy current, wherein the first and second coils are separated into two or more elements at a cross section orthogonal to a direction along which the member to be heated moves; a pressing member which contacts with the member to be heated and can provide a nip having a specified width in cooperation with the member to be heated; and a releasing mechanism which, from the member to be heated, separates a fixing member passing through the nip between the member to be heated and the pressing member, wherein the releasing mechanism is provided at a specified position on an outside periphery of the member to be heated in correspondence with a position causing a maximum gap between wire turns of the first and second coils in the induction current generation mechanism, wherein the releasing mechanism contacts with the member to be heated, wherein the member to be heated includes a cylindrical body extending along a direction orthogonal to a direction along which the member to be heated itself rotates, and wherein an upper bound of the shift amount is ⅛ of a circumference of the member to be heated.