Patent ID: 7216950
Filing Date: 2007-05-15
Classification: B41J

Abstract:
1. A liquid-discharging method for forming a pixel by landing at least one droplet discharged from one of plurality of liquid-discharging units on a droplet-landing object, and providing gradation in accordance with the number of the landed droplets in a pixel area, comprising the steps of: providing droplet data for the pixel to be formed; performing gradation processing including image processing and error diffusion with respect to said droplet data subsequent to said gradation processing providing a corrected droplet-discharging signal to alter a number of ink droplets defining the density of the pixel so that the density of the pixel on the droplet landing object agrees with the droplet data; and controlling the plurality of liquid-discharging units in accordance with the corrected droplet-discharging signal so as to form a pixel on the droplet-landing object in.