An image forming apparatus is described. The image forming apparatus may include a casing including an image forming section, an ejecting section provided above the image forming section and an image scanning section provided above the ejecting section, formed with an ejecting port communicating with the ejecting section; and an operating section. A side surface of the casing closer to the ejecting port includes a generally vertical surface and an upper surface of the casing includes a generally horizontal surface. The casing is provided with an inclined surface inclined along a direction intersecting with the generally vertical surface and the generally horizontal surface for connecting the generally vertical surface and the generally horizontal surface with each other, and the ejecting port is formed on the inclined surface, while the operating section is arranged above the ejecting port on the inclined surface.