An image forming apparatus in which developers are detachably coupled to a main body. The image forming apparatus includes: a developer mount member on which the developers are mounted and that is attachable to and detachable from the main body; an input contact member disposed on the developers; a power supply unit that is provided in the main body; an output contact member that is disposed in the main body to face a front end of the developer mount member in a mount direction in which the developer mount member is mounted and is electrically connected to the power supply; and intermediate contact members disposed on the front end of the developer mount member in the mount direction and are electrically connected to a respective input contact member, and electrically contacts the output contact member as the developer mount member is mounted.
