Patent ID: 8498562
Filing Date: 2013-07-30
Classification: G03G

Abstract:
1. A fixing device that causes a sheet on which an unfixed image is formed to pass through a fixing nip, and fixes the unfixed image onto the sheet by heat and pressure at the fixing nip, the fixing device utilizing an induction heating method and comprising: a belt that is rotated, includes an induction heating layer and has a substantially hollow cylindrical shape; a first roller positioned inside a rotation path of the belt; a second roller that forms the fixing nip between an outer surface of the second roller and an outer surface of the belt by pressurizing the first roller from outside the rotation path via the belt; and a magnetic flux generator that is positioned outside the rotation path and generates magnetic flux for causing the induction heating layer of the belt to generate heat, wherein a rate X of an inner diameter of the belt to an outer diameter of the first roller satisfies a relationship 1<X≦1.18.