| 摘要 |
A cylindrical heating element comprising a cylindrical member, a metallic pattern provided on at least one of outer and inner circumferential surfaces of the cylindrical member, which is capable of generating heat by being electrified, and a resistive pattern for detecting temperature provided on at least one of the outer and inner circumferential surfaces of the cylindrical member. A fixing device which passes a recording medium on which an unfixed toner image is held through a nip formed by a rotating member for heating and a rotating member for pressurizing which is pressed against the rotating member for heating to fix the toner image on the recording medium with heating under pressure, the rotating member for heating comprising the cylindrical heating element.
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