Fixing device with temperature detection

摘要

A fixing device of an exemplary embodiment includes a fixing belt, an induced current generation section, an auxiliary heat generation section, a temperature detection section, and a control section. The fixing belt includes a conductive layer. The induced current generation section opposes the fixing belt in a thickness direction. The induced current generation section performs electromagnetic induction heating on the conductive layer. The auxiliary heat generation section opposes the induced current generation section with the fixing belt interposed therebetween. The temperature detection section detects a temperature of the auxiliary heat generation section. The control section reduces an output from the induced current generation section on the basis of a detection result from the temperature detection section.

主权项

1. A fixing device comprising:
a fixing belt that includes a conductive layer; an induced current generation section that opposes the fixing belt in a thickness direction, performs electromagnetic induction heating on the conductive layer, and is disposed further toward an outside of the fixing belt in a diameter direction than an outer circumferential surface of the fixing belt; an auxiliary heat generation section that opposes the induced current generation section with the fixing belt interposed therebetween, and is disposed further toward an inside of the fixing belt in the diameter direction than an inner circumferential surface of the fixing belt; a temperature detection section that detects a temperature of the auxiliary heat generation section; and a control section that relatively moves the outer circumferential surface of the fixing belt and the induced current generation section on the basis of a detection result from the temperature detection section.