| 摘要 |
A fixing device has a heating roller and a pressure belt, each of which includes a gripping portion at both width-directional ends thereof. The gripping portion corresponds to outside of a range in which a recording material passes. The gripping portion has a friction coefficient greater than that of the surface in the width-directional center portion, which portion corresponds to inside of the range in which the recording material passes. A gripping portion pressurizing part is located inside the gripping portion at both end portions of the pressure belt so as to pressurize the gripping portion of the pressure belt against the gripping portion of the heating roller. This makes it possible to improve frictional resistance between the gripping portions of the heating roller and the pressure belt. Thus, the fixing device allows preventing the conveyance error of the recording material, so that the image quality can be improved, and also the fixing device can be reduced in size and weight.
|
