The information expressed by an original color image can be visually recognized even if the recording medium on which the color image has been recorded in dye ink is wetted with water. With a printing device equipped with pigment ink and dye ink, in the printing of a color image, the pigment ink corresponding to an image characteristic amount included in the color image is also injected along with the dye ink, so an image expressing the image characteristic amount included in the color image is recorded with the pigment ink, which has excellent water resistance, over the color image printed with the dye ink on the printing medium. Accordingly, in the event that the recording medium becomes wet and the dye ink bleed, the user can still make out the content of the information expressed by the original color image from the image printed in the pigment ink.