In an image forming apparatus serving as one embodiment, a large-format display that has a display screen visible from a rear face or a side face is disposed on at least one side face of a case of the image forming apparatus, and is formed such that the large-format display and the image forming apparatus are separable. The large-format display is provided with a pair of legs disposed so as to have a predetermined space L between the legs, and this space between the legs is formed so as to be no more than the lateral width of the image forming apparatus, and no more than the depth-wise width of the image forming apparatus.