Patent ID: 8086160

Claim:
A fixing apparatus comprising: a roller for the fixing apparatus comprising a base layer, a rubber layer formed on the base layer and a surface layer formed of a fluororesin tube; a heater disposed inside the roller for the fixing apparatus; and a pressure roller for forming a fixing nip portion for pinching and conveying a recording material bearing a toner image with the roller for the fixing apparatus, wherein the surface layer of the roller for the fixing apparatus is formed by covering the fluororesin tube on the rubber layer in a condition where the fluororesin tube is pulled in a radial direction of the fluororesin tube, the fluororesin tube has an internal diameter less than an outer diameter of the roller in a condition where the rubber layer is formed on the base layer but the fluororesin tube is not covered and a thickness of 20 microns or smaller and a crystallization degree of the fluororesin tube being 50% or smaller.