Patent ID: 6328400
Filing Date: 2001-12-11
Classification: G06K,H04N

Abstract:
A printing system for recording at least two types of dots having different diameters on a printing object and thereby generating a multi-tone image expressed by recording densities of said at least two types of dots, said printing system comprising:a head which records a larger-diametral dot out of said at least two types of dots having different diameters at a first position that is determined according to a relative position to said printing object, and records a smaller-diametral dot out of said at least two types of dots at a second position that is different from the first position;a position specification unit which determines whether said head exists at the first position or at the second position, based on the relative position to said printing object;an input unit which inputs image data including density information of a target image to be printed; anda multi-valuing unit which carries out a multi-valuing operation corresponding to a number of tones expressible by said at least two types of dots based on the input image data, while changing a condition for formation of a dot according to a type of the dot to be printed at the position of said head specified by said position specification unit.