Printing apparatus, printing method, and recording medium

摘要

The printing apparatus of the present invention adopts the technique of effectively utilizing two or more different types of dots having different ink densities and different ink weights. The printing apparatus has a head that provides inks of different densities with respect to at least one color and creates dots of different diameters. The density per unit area is varied by changing the combination of the ink density and the dot diameter. In the half tone area, the lightness of smaller dark dots is made substantially coincident with the lightness of larger light dots. Both the smaller dark dots and the larger light dots are created in the half tone, so as to prevent the banding from occurring in a resulting printed image. The smaller dark dots and the larger light dots may be arranged according to a predetermined pattern or at random. The pattern should be set by taking into account the ink duty of the recording paper.