Patent ID: 7280794

Claim:
A fixing device, in which a fixing roller, having an internal heating means and being supported so as to be able to rotate around, and in unison with, a fixing roller axle, and a pressure roller, having a circumferential face which is pressed against the fixing roller in the lengthwise direction along substantially the entire length thereof, and being supported so as to be able to rotate around a pressure roller axle, are mounted in a predetermined housing, for performing a fixing process on a toner image by passing paper to which the toner image has been transferred between the fixing roller and the pressure roller, the fixing device comprising: a bushing fitted on the ends of the fixing roller for mounting the fixing roller in the housing; and a C-shaped retaining ring having a gap, for fitting into the fixing roller axle and preventing the bushing from coming off, the bushing and the retaining ring engaging with each other so as to be able to rotate in unison around the fixing roller axle.