To provide a recording device enabling unencumbered movement of a stacker to a target position at which an amount of extension that corresponds to the length of a medium is reached, a printer is provided with a conveyance unit for conveying paper, a paper length determination unit for determining the length of the paper in the direction of conveyance of the paper, a recording unit for recording onto the paper being conveyed, one stacker for receiving the already-recorded paper, an electric motor for driving the stacker, and a controller for controlling the electric motor. The controller (in particular, a stacker control unit) controls the electric motor and controls the stacker to a position at which the amount of extension that corresponds to the length of the paper is reached.