FIXING DEVICE AND IMAGE FORMING APPARATUS

摘要

A fixing device includes a pressure rotator pressed against a fixing rotator to form a fixing nip therebetween, through which a recording medium bearing a toner image is conveyed. A first heater is disposed opposite and heats a first heated span on the fixing rotator spanning in an axial direction thereof. A second heater is disposed opposite and heats a second heated span on the fixing rotator spanning in the axial direction thereof. A temperature sensor unit is disposed opposite an outer circumferential surface of the fixing rotator and includes a first temperature detection element to detect a first temperature of the first heated span on the outer circumferential surface of the fixing rotator and a second temperature detection element to detect a second temperature of the second heated span on the outer circumferential surface of the fixing rotator.

主权项

1. A fixing device comprising:
a fixing rotator; a pressure rotator pressed against the fixing rotator to form a fixing nip therebetween, through which a recording medium bearing a toner image is conveyed; a first heater disposed opposite and heating a first heated span on the fixing rotator spanning in an axial direction thereof; a second heater disposed opposite and heating a second heated span on the fixing rotator spanning in the axial direction thereof; and a temperature sensor unit disposed opposite an outer circumferential surface of the fixing rotator, the temperature sensor unit including:
a first temperature detection element to detect a first temperature of the first heated span on the outer circumferential surface of the fixing rotator; anda second temperature detection element to detect a second temperature of the second heated span on the outer circumferential surface of the fixing rotator.