Patent ID: 6614004
Filing Date: 2003-09-02
Classification: B41J,G03G,H05B

Abstract:
An image heating apparatus comprising:a heater for heating an image on a recording material, said heater having a heat dissipation resistor; a backup member for forming a nip cooperating with said heater; and a film nipped between said heater and said backup member, wherein the heat dissipation amount per unit length of said heat dissipation resistor differs between a middle zone in a longitudinal direction of the heater and first and second edge zones adjacent to the middle zone, and wherein the heat dissipation amount per unit length thereof also differs between the first edge zone and the second edge zone; and wherein the end portion of said film on the first edge zone side is further spaced apart from the recording material more in a center of a conveying area than the end portion thereof on the second edge zone side, and wherein the heat dissipation amount per unit length of the first edge zone is larger than that of the second edge zone.