Patent attributes
A printer transfers to one image formation area a plurality of single colors of ink repeatedly arranged in a longitudinal direction of the ink sheet, to thus produce in an image formation area of an intermediate transfer sheet a transfer image formed as a result of lamination of single color images, and also transfers the transfer image of the intermediate transfer sheet to a subject to be printed, thereby producing a desired image on the subject. During the course of a first single color of ink C being transferred from the ink sheet to an image formation area of an intermediate transfer sheet, to thus produce a single color image in the first color on the intermediate transfer sheet, a position mark is transferred by use of a black ink area provided at a widthwise edge of an area of the first single color of ink of the ink sheet and outside the image formation area of the intermediate transfer sheet.