Fixing device, heating device, image forming apparatus, and method of manufacturing heating device

摘要

A fixing device includes a fixing member that fixes a toner image to a recording medium, a pressure member that forms, together with the fixing member, a pressure portion through which the recording medium carrying the toner image yet to be fixed passes, and a heating member including a heating layer that generates heat when energized and an insulating layer that encloses the heating layer so as to electrically insulate the heating layer. The heating member has a curved shape along an inner peripheral surface of the fixing member, in a state in which no external force is applied, and is in contact with the inner peripheral surface of the fixing member.

主权项

1. A fixing device comprising:
a fixing member that fixes a toner image to a recording medium; a pressure member that forms, together with the fixing member, a pressure portion through which the recording medium carrying the toner image yet to be fixed passes; and a heating member comprising: a heating layer that generates heat when energized, and an insulating layer that encloses the heating layer so as to electrically insulate the heating layer; guides disposed at each longitudinal end of the heating member and along an inner peripheral surface of the heating member, wherein the guides are curved so as to define the shape of the heating member and the heating member is disposed in between the guides, wherein the heating member has a curved shape along an inner peripheral surface of the fixing member, in a state in which no external force is applied, and is in contact with the inner peripheral surface of the fixing member, and wherein the heating member has a curved shape when attached and detached from the guides.