Patent ID: 7287823

Claim:
An ink Jet printing apparatus to form an image on a print medium by using a print head, wherein the print head can eject at least a black ink and a plurality of color inks capable of forming a black by color mixing, the ink jet printing apparatus comprising: print black data generation means for generating print black data used to apply the black ink to a part of pixels in a black image area; first color application data generation means for generating first color application data used to apply the plurality of color inks to a pixel in the black image area to which the black ink is not applied; second color application data generation means for generating second color application data used to apply at least one of the plurality of color inks to at least a part of pixels in the black image area to which the black ink is applied; and control means for controlling application of the black ink and the plurality of color inks from the print head onto the black image area based on the print black data, the first color application data, and the second color application data.