FIXING DEVICE AND IMAGE FORMING APPARATUS

摘要

A fixing device includes a fixing rotator, a first heat generator and a second heat generator that heat the fixing rotator, and a support disposed inside the fixing rotator. A reflector, interposed between the support and each of the first heat generator and the second heat generator, reflects light radiated from the first heat generator and the second heat generator toward the fixing rotator. The reflector includes a body mounted on the support and a shield portion projecting from the body toward the first heat generator and the second heat generator to shield the fixing rotator from the first heat generator and the second heat generator. An electric circuit is connected to the first heat generator and the second heat generator. A heat generation restrainer is provided in the electric circuit to restrict heat generation in the electric circuit.

主权项

1. A fixing device comprising:
a fixing rotator rotatable in a predetermined direction of rotation; a first heat generator disposed opposite the fixing rotator to heat the fixing rotator and spanning a first heating span in an axial direction of the fixing rotator; a second heat generator disposed opposite the fixing rotator to heat the fixing rotator and spanning a second heating span in the axial direction of the fixing rotator that is different from the first heating span; a support disposed inside the fixing rotator; an opposed rotator contacting the fixing rotator to form a fixing nip therebetween, through which a recording medium bearing a toner image is conveyed; a reflector interposed between the support and each of the first heat generator and the second heat generator to reflect light radiated from the first heat generator and the second heat generator toward the fixing rotator and extending in a direction perpendicular to the direction of rotation of the fixing rotator, the reflector including:
a body mounted on the support; anda shield portion projecting from the body toward the first heat generator and the second heat generator to shield the fixing rotator from the first heat generator and the second heat generator; an electric circuit connected to the first heat generator and the second heat generator; and a heat generation restrainer provided in the electric circuit to restrict heat generation in the electric circuit.