An image forming apparatus includes an operation receiving unit and a display control unit, the operation receiving unit receives a touch operation on an operation screen. If a change in a predetermined state occurs in the image forming apparatus, the display control unit causes a notification image indicating content of the change to be displayed on the operation screen. The display control unitcauses a small-sized medium-term notification image to be displayed on the operation screen upon receiving of a request for reducing a size of a medium-term notification image displayed on the operation screen and causes a small-sized long-term notification image to be displayed in a predetermined area in which a display of display information displayed by the operation screen is not hindered if the display control unit receives a request for reducing a size of a long-term notification image displayed on the operation screen. Therefore, according to the imaging forming apparatus, the content of state change in the image forming apparatus can be accurately notified to users, and the reduction of the operability can be avoided.