A printer 1 has a processing unit that processes media; an automatic paper cutter 60 that cuts the media; a conveyance mechanism 63 that conveys media in the direction moving to an exit; a media orientation detection means 65 that detects displacement of the media after conveyance by the conveyance mechanism 63 stops; a limiting unit that restricts movement of the media toward the exit after conveyance by the conveyance mechanism 63 stops; and a media processing device control unit 100 that controls cutting the media by the automatic paper cutter 60 when the media orientation detection means 65 detects displacement of the media.