IMAGE HEATING APPARATUS HAVING ROTARY METAL MEMBER IN CONTACT WITH HEATER, THE ROTARY MEMBER AND PRODUCING METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To obtain an image heating apparatus capable of realizing high-speed on-demand by preventing the wrinkles of paper and uneven gloss from occurring. SOLUTION: This image heating apparatus comprises a heater 11, a rotary member 13 having plasticity and rotated in contact with the heater 11, and a backup member 20 forming a nip part N in cooperation with the heater 11 while putting the rotary member 13 in between. The rotary member 13 has a metallic base layer, and has an external shape becoming larger toward the end portions in a longitudinal direction.