A color printer is disclosed which includes a photosensitive drum, a rotary developing device, a laser unit, a toner container, and a toner supply device. The rotary developing device is located adjacent to the photosensitive drum and includes a plurality of developing units corresponding to a plurality of colors. The laser unit is located above the photosensitive drum and on the rear side in the device. The toner container is located above the photosensitive drum and on the front side in the device. The toner container contains each color toner to be supplied to each of the developing units. The toner supply device is located above the photosensitive drum and between the laser unit and the toner container. The toner supply device supplies each of the developing units with each of color toners contained in the toner container.