| 摘要 |
An image forming apparatus has improved follow-up properties of the fixing rollers between a surface resin layer and an elastic layer beneath it, thereby preventing the generation of a crack and allowing discharge of OHP sheets in a satisfactory manner. A fixing roller and a pressurizing roller are in press contact with each other, and a recording material having an unfixed image is press-conveyed by a pressurizing portion formed by the pair of rollers to effect heat fixing of the image on the recording material. The fixing roller has an elastic layer having a thickness of 1 mm or more and a resin layer having a thickness of 20 mum to 50 mum formed on the surface of the elastic layer by firing, and the coefficient of linear expansion of the elastic layer at 150° C. is not larger than 2.7 times the coefficient of linear expansion of the resin layer at 150° C.
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