| 摘要 |
PROBLEM TO BE SOLVED: To provide a heating device capable of preventing the temperature of the end part on the side from which heat is taken more from being lower than the other part in a heater having a heat-taking factor differed between both longitudinal ends thereof. SOLUTION: In this film type heating device, a body to be heated introduced to a fixing nip part with the center orthogonal to a carrying direction as a carrying reference c is moved and passed integrally with a film 1, whereby the heating value of a heating element 7 is imparted to the body to be heated through the film 1. The heating element 7 comprises a resistant heating element 4 whose lengths A1 and A2 to both lateral ends are differed to each other with the carrying reference C as the center.
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