Fixing device and image forming apparatus having temperature detector

摘要

A fixing device includes a fixing rotator formed into a loop and rotatable in a predetermined direction of rotation and a pressure rotator disposed outside the loop formed by the fixing rotator and pressed against the fixing rotator to form a fixing nip therebetween through which a recording medium bearing a toner image is conveyed. A stay is disposed opposite the pressure rotator via the fixing rotator. A heater is disposed opposite an inner circumferential surface of the fixing rotator to heat the fixing rotator. A pressurization member is pressed against the heater via the fixing rotator. A housing is interposed between the stay and the heater. A temperature detector is mounted on the housing to detect a temperature of the heater.

主权项

1. A fixing device comprising:
a fixing rotator formed into a loop and rotatable in a predetermined direction of rotation;a pressure rotator disposed outside the loop formed by the fixing rotator and pressed against the fixing rotator to form a fixing nip therebetween through which a recording medium bearing a toner image is conveyed;
a stay disposed opposite the pressure rotator via the fixing rotator; a heater disposed opposite an inner circumferential surface of the fixing rotator to heat the fixing rotator; a pressurization member pressed against the heater via the fixing rotator; a housing interposed between the stay and the heater; a temperature detector mounted on the housing to detect a temperature of the heater; and a heater holder holding the heater and attached with the housing, wherein the housing includes a plurality of housing positioners aligned in a longitudinal direction of the housing, and wherein each of the plurality of housing positioners includes an elliptical tube having a decreased height in a direction orthogonal to the longitudinal direction of the housing.