A support device and an image forming apparatus having the same are provided. The support device according to an example includes a first lever rotatably disposed at a door provided in a body of an image forming apparatus, and a first elastic member to rotate the first lever disposed at a first position based on the door being closed to a second position based on the door being opened, wherein, at the second position, the first lever supports a part of a toner cartridge tray pulled out from the body.