An image forming apparatus including an image forming unit which continuously forms an image on sheets of paper, three or more stackers to which the sheets on which the image is formed by the image forming unit are ejected and a control unit which determines paper ejection order of stackers to which the sheets are to be ejected among the three or more stackers in a predetermined order, wherein each of the stackers includes a loading unit on which the sheets are loaded and a conveyance cart which is disposed under the loading unit and by which the loading unit can be removed from the stacker.