METHOD OF MANUFACTURING FIXING ROLL

PROBLEM TO BE SOLVED: To solve such problems in a conventional method of manufacturing a fixing roll that hot air circulating in a heating furnace is blown to the surface of a PFA tube covering a core bar, which generates air bubbles between the core bar and the PFA tube, and that if the fixing roll having air bubbles is used in an image forming apparatus, the roll degrades image qualities. SOLUTION: A method of manufacturing a fixing roll includes applying a primer on the surface of a hollow core bar, covering the primer surface with a heat-shrinking tube, and baking the roll in a heating furnace in which hot air is circulated. In the method, a planar plate having one or more holes penetrating in the thickness direction is prepared and fixing rolls prior to baking are arranged to stand on the planar plate such that the hollow parts of the core bars of the fixing rolls prior to baking are positioned on the all holes of the plate and that hot air passes through the holes of the planar plate and through the hollow parts of the core bars while the planar plate prevents the hot air from being directly blown to the surfaces of the fixing rolls prior to baking. COPYRIGHT: (C)2010,JPO&INPIT