Abstract: The printer is a printer for printing on a label continuous body including a plurality of labels temporarily attached to a belt-like liner at predetermined intervals, the printer calculates the label pitch from the downstream end portion of a first label and the upstream end portion of the first label detected by a second detecting unit that detects an end portion of the label, if the calculated label pitch is smaller than a distance from a first detecting unit for identifying a printing start position of the label to a printing unit, the printer feeds the label continuous body to a printing start position of a second label based on the calculated label pitch.

Abstract: The printer is a printer for printing on a label continuous body including a label detecting unit having a light-emitting portion configured to emit a detecting light and a light-receiving portion configured to receive the detecting light and a control unit configured to adjust a light emitting output of the detecting light in the light-emitting portion, so as to bring an output voltage from the label detecting unit when the light-receiving portion receives a detecting light through the liner to which the label is not temporarily attached, closer to an output voltage from the label detecting unit when the light-receiving portion receives a detecting light through a state in which there is no label continuous body between the light-emitting portion and the light-receiving portion.

Abstract: A printer includes: a first roller feeding a liner; a print unit printing information on a print medium temporarily adhering to the liner fed by the first roller; a second roller located at a first position when performing a print operation in a first print mode, and a second position when performing the print operation in a second print mode, at which second position the second roller rotates by the rotation of the first roller to separate the print medium from the liner; a reflective optical sensor including a light emitting part and a light receiving part arranged in an upward and downward direction defined when the printer is placed on a horizontal surface, and that is used to determine a position of the second roller; and a sensor housing containing the light receiving part. The sensor housing has a surface opposite to the light receiving part. The surface has an opening on a side of the light emitting part, and a light blocking part on a side opposite to the side of the light emitting part.

Abstract: A printer includes: a first roller feeding a liner; a print unit printing information on a print medium temporarily adhering to the liner fed by the first roller; a second roller located at a first position when performing a print operation in a first print mode, and a second position when performing the print operation in a second print mode, at which second position the second roller rotates by the rotation of the first roller to separate the print medium from the liner; a reflective optical sensor including a light emitting part and a light receiving part arranged in an upward and downward direction defined when the printer is placed on a horizontal surface, and that is used to determine a position of the second roller; and a sensor housing containing the light receiving part. The sensor housing has a surface opposite to the light receiving part. The surface has an opening on a side of the light emitting part, and a light blocking part on a side opposite to the side of the light emitting part.