1. An ink-jet recording device for printing images based on image data using a recording head, said ink-jet recording device comprising: a determining unit configured to determine object attributes of said image data; a storing unit configured to store a plurality of conversion tables for conversion from a RGB color expression to a YMCK color expression; and a color conversion unit configured to convert color using a predetermined conversion table of said plurality of conversion tables, according to the object attributes determined by said determining unit; wherein said color conversion unit is configured to differentiate between a conversion table for use in color conversion of a picture image, and a conversion table for use in color conversion of a character image.