Patent ID: 8116654
Filing Date: 2012-02-14
Classification: G03G

Abstract:
1. An image heating apparatus comprising: a heat rotating member which heats a toner image while nipping and conveying a recording material on which the toner image is borne; a fan which cools the heat rotating member; a blowing port which is arranged facing the heat rotating member and through which blowing air passes from the fan toward the heat rotating member; a shutter which is movable in a longitudinal direction of the heat rotating member so as to change an opening area of the blowing port; a control unit which moves the shutter in the longitudinal direction while rotating the fan after completion of a heating operation of the heat rotating member to the toner image; and a changing member which can change a movement speed of the shutter to a first movement speed of the shutter when obstructing the blowing air toward a first area of the heat rotating member at a first temperature and to a second movement speed of the shutter which is faster than the first movement speed when obstructing the blowing air toward a second area of the heat rotating member at a second temperature which is lower than the first temperature.