PRINTER AND PRINTING METHOD

A mixture of image data in a plurality of categories is prevented from being present on one sheet of recording paper and the handling of printed recording paper is facilitated. Inputted captured image data is saved in order in an image memory. Kinds of the inputted captured image data are determined by the determination section. When the captured image data inputted to the determination section is determined to be of a different kind from the previously inputted image data, the determination section prints through a print head the captured image data previous to the captured image data determined to be of a different kind by the determination section.