IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING THE SAME

摘要

An image forming apparatus has an outline surrounded by a casing. The casing has an opening. The image forming apparatus includes a fixing unit configured to fix an image formed on a recording medium, and a control unit. The fixing unit includes a heating fixing member. The control unit is configured to control an opening degree of the opening based on temperature of a surface of or in the vicinity of the heating fixing member, so as to prevent emission of a substance by an air current to outside of the casing through the opening, during an image forming operation.