IMAGE HEATING APPARATUS

摘要

The fixing apparatus includes a sleeve, a nip portion forming member that contacts an inner surface of the sleeve, a pressure member, and a regulation member for regulating movement of the sleeve, in which the regulation member includes a first surface and a second surface, in which the first surface on an upstream side of the nip portion in a conveyance direction of the recording material includes a region in which a distance between the inner surface of the sleeve and the first surface in a radial direction of the sleeve increases toward a center portion of the sleeve in the generatrix direction, and in which the end surface of the sleeve contacts the region when the sleeve moves in the generatrix direction.

主权项

1. A fixing apparatus for fixing a toner image onto a recording material by heating the recording material bearing the toner image while conveying the recording material through a nip portion,
wherein the fixing apparatus comprising: a sleeve; a nip portion forming member that contacts an inner surface of the sleeve; a pressure member that forms the nip portion together with the nip portion forming member through the sleeve; and a regulation member that regulates movement of the sleeve, the regulation member including a first surface opposed to an inner surface of an end portion of the sleeve in a generatrix direction of the sleeve, and a second surface opposed to an end surface of the sleeve in the generatrix direction, wherein the first surface on an upstream side of the nip portion in a conveyance direction of the recording material includes a region in which a distance between the inner surface of the sleeve and the first surface in a radial direction of the sleeve increases toward a center portion of the sleeve in the generatrix direction of the sleeve, and wherein the end surface of the sleeve contacts the region when the sleeve moves in the generatrix direction.