A label printer includes a communication interface (6) for sequentially inputting issue label data, a frame memory (5) for storing print pattern data, a printing unit (PT) for printing print pattern data stored in the frame memory (5), and a processing circuit (1, 3, 4) for creating print pattern data corresponding to input issue label data in the frame memory (5). With the above label printer, the processing circuit (1, 3, 4) determines an empty area of the frame memory (5) which is different from an area occupied by the to-be-printed print pattern data when issue label data is input from the communication interface (6) and creates print pattern data corresponding to input issue label data in the empty area.
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