Patent ID: 10000079

Abstract:
A printing device includes a platen roller, a pair of bearings, and a holder including a pair of fitting portions to which the bearings are fitted. The bearings rotatably support a rotational shaft of the platen roller. Each bearing includes a small-diameter portion, a large-diameter portion coaxially connected to the small-diameter portion, and a protrusion provided at an outer circumferential surface of the small-diameter portion. The larger-diameter portion has a peripheral surface and an end face connecting the peripheral surface to the outer circumferential surface. Each fitting portion includes: a receiving portion configured to receive the small-diameter portion; an opening to which the protrusion is fitted; and a receiving surface configured to contact the end face of the large-diameter portion from outward in an axial direction of the rotational shaft. At least one of the end face and the receiving surface includes a recessed portion.