A printer for printing information on a recording sheet, includes a housing configured to accommodate a recording sheet and a printing portion; a battery to be removably mounted to the housing; and a clip pivotably mounted to the housing. The clip includes a joint portion, which is elastically deformable so that a coupling portion of the housing is pivotably fitted to the joint portion. Each of the joint portion and the coupling portion includes an engagement portion configured to restrain the clip from pivoting at a mounting position at which the clip covers at least a part of the battery. When a predetermined external force is applied to the housing in a pivoting direction of the clip, restraining of the clip by the engagement portions is canceled so that the clip is movable from the mounting position.