A recording apparatus, including: a support portion; a recording portion; a first casing; a second casing; a positioning mechanism including a guide pin and a guide hole, for defining a relative position of the recording portion and the support portion by engagement of the guide pin and the guide hole when the second casing is positioned at a close position; and a movable member disposed at one end of the guide hole for moving in a direction away from the other end of the guide hole, so as to be retracted from a moving region of the guide pin that moves relative to the guide hole in association a pivotal movement of the second casing, wherein the movable member is for biasing the guide pin engaging the guide hole in a direction toward the other end of the guide hole such that the guide pin contacts the other end.