FIXING DEVICE, FIXING DEVICE ROLLER, FIXING DEVICE FLEXIBLE SLEEVE, AND METHOD FOR MANUFACTURING THE FIXING DEVICE ROLLER AND THE FIXING DEVICE FLEXIBLE SLEEVE

摘要

Provided are a fixing device, a roller for the fixing device, and a flexible sleeve for the fixing device. The fixing device roller (1) has an elastic layer (1b) coated with a resin tube as a surface layer (1c), and is characterized in that the resin tube has a thickness of 20 µm or less and a crystallinity of 50 % or less. In the fixing device roller having the elastic layer coated with the resin tube as the surface layer, therefore, the resin tube can be freed from any cracking even if it is thinned.