A printer using heat to print on a print medium improves a print processing speed over an entire print surface of a print medium. In print processing of a label (PL), the feeding speed at a print region (SW) for printing a barcode or the like is slower than a standard feeding speed, and the feeding speed at a margin region (SY) that has a length that is at least a predetermined length in the feeding direction (F) among the margin regions is faster than the standard feeding speed. Further, the feeding speed at a printing area (NW) for printing character, symbol, or the like, and the feeding speed at a margin region (NY) that has a length smaller than the predetermined length in the feeding direction (F) are set to the standard feeding speed. Accordingly, the print processing speed over the entire print surface of the label (PL) may be improved in the printer using heat to print on a label (PL).