| 摘要 |
PROBLEM TO BE SOLVED: To provide a fixing device consisting of a fixing belt, pressure member and pressure roller and is free from slip between the fixing belt and pressure roller, and to provide an image forming apparatus that has the fixing device. SOLUTION: The fixing device consisting of the fixing belt, pressing member and pressure roller, is constituted so that the fixing belt is heated by a heating member to a temperature required to melt toner, the pressing member is disposed inside the fixing belt, when a nip is formed by pressing the pressing member and pressure roller against each other via the fixing belt, the ends of the pressing member at the entrance and exit of the nip are located closer to the center of the pressure roller than to the surface of the pressure roller in the unpressed state, and the curvature radius of the nip forming portion of the pressing member is smaller than the curvature radius of the pressure roller in the unpressed state. COPYRIGHT: (C)2008,JPO&INPIT
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