Patent ID: 9128433
Filing Date: 2015-09-08
Classification: G03G

Abstract:
1. A fixation device for fixing a developer image on a medium to the medium, comprising: a pressing member; a drive roller disposed to face a portion of an outer peripheral surface of the pressing member, with an endless fixation belt between the drive roller and the pressing member; an auxiliary roller disposed to face another portion of the outer peripheral surface of the pressing member, with the endless fixation belt between the auxiliary roller and the pressing member; and the endless fixation belt rotatably mounted, in a loop shape, on the drive roller and the auxiliary roller, and being in pressure contact with the outer peripheral surface of the pressing member thereby forming a nip between the fixation belt and the pressing member, wherein the pressing member is configured to apply pressure to the medium fed into the nip between the pressing member and the fixation belt, the drive roller is configured to drive the fixation belt to rotate in the looped shape, thereby causing the auxiliary roller to become rotated by a frictional force from an inner peripheral surface of the rotating fixation belt, a friction coefficient of a contact surface of the auxiliary roller with the fixation belt is smaller than a friction coefficient of a contact surface of the drive roller with the fixation belt, and the outermost layer of the auxiliary roller comprises a coating film formed on a layer underlying the outermost layer.