Whether or not a color image is present adjacent to a black image is discriminated. Whether the black image is formed using a black ink or a plurality of color inks C, M, and Y is determined in accordance with the discrimination result. When the black image is formed using the plurality of color inks,...http://www.google.fr/patents/US6312102?utm_source=gb-gplus-shareBrevet US6312102 - Color ink jet recording method and apparatus using black ink and color-mixed black ink
Color ink jet recording method and apparatus using black ink and color-mixed ...
