Patent ID: 6530647
Filing Date: 2003-03-11
Classification: B41J

Abstract:
A color ink-jet head comprising:a plurality of head units each having 1/n of a total number of nozzles predetermined as a maximum number to jet ink of one color in one scanning, where n is an integer equal to or greater than 2, and wherein the nozzles of each of the head units are arranged at a same pitch; and a plurality of head blocks each having at least as many said head units as a number of different ink colors to be used for the ink-jet head; wherein said head units are provided for holding respective inks of the different colors and are arranged in a direction perpendicular to a printing direction of said ink-jet head; wherein a predetermined number of said head blocks are arranged in the printing direction in such a manner that no head units of a same color are aligned in the printing direction, and said head blocks execute printing for said predetermined number of head blocks multiplied by 1/n of a printing width in one scanning.