Printer

Abstract

A printer is configured to perform printing on a linerless label including a pressure-sensitive adhesive surface formed on a back surface of the linerless label. The printer includes: a casing including: a receiving portion configured to receive the linerless label before printing; and a delivery slot through which the printed linerless label is delivered; a printing unit including: a thermal head, which is arranged inside the casing, and is configured to perform printing on the linerless label; and a platen roller, which extends in a width direction of the linerless label, and is configured to convey the linerless label toward the delivery slot while sandwiching the linerless label between the platen roller and the thermal head; and a sensor configured to detect the linerless label located between the printing unit and the delivery slot. The casing includes a guide surface to be opposed to the pressure-sensitive adhesive surface of the linerless label that has passed through the printing unit. The guide surface includes: an upstream portion, which includes a plurality of upstream ribs formed upright at intervals in the width direction to extend along a conveying direction of the linerless label; a downstream portion, which is provided at a distance from the upstream portion on a downstream side in the conveying direction, and includes a plurality of downstream ribs formed upright at intervals in the width direction to extend along the conveying direction; and a midstream portion, which is provided at the same position as that of the sensor in the conveying direction, is located between the upstream portion and the downstream portion, and includes at least one midstream rib formed upright only on a center portion of the midstream portion in the width direction to extend along the conveying direction.