Patent ID: 7147296

Claim:
A printing control method of generating print data to be supplied to a print unit to print, the print unit forming dots on a print medium by ejecting ink droplets of at least one type of colored ink containing a color material and a quality-enhancing ink for enhancing quality of a printed material, the printing control method comprising: (a) selecting a color dot recording rate table storing a color dot recording rate representing a dot recording rate of a color dot formed with the colored ink for specifying the color dot recording rate, while selecting a transparent dot recording rate table storing a transparent dot recording rate representing a dot recording rate of a transparent dot formed with the quality-enhancing ink for specifying the transparent dot recording rate; and (b) generating dot data representing a state of dot formation of the color dot and the transparent dot at each pixel according to a pixel value of given image data based on the selected dot recording rate table; wherein the transparent dot recording rate table is configured to require a less process load for generation of the dot data than the color dot recording rate table.