There is provided an image forming apparatus includes an apparatus body having an opening, an open/close member which opens and closes the opening, and an image forming unit which is drawable to an outside of the apparatus body through the opening. The open/close member includes a restraint member which is movable between a restraint position of restraining movement of the image forming unit and a restraint release position of releasing the restraint, and a moving member which moves the restraint member from the restraint position toward the restraint release position as the open/close member being moved from a close position to an open position. Once the restraint member is moved from the restraint position toward the restraint release position, the restraint member is held at the restraint release position not to be moved from the restraint release position to the restraint position even when the open/close member is moved.