Patent ID: 8382248
Filing Date: 2013-02-26
Classification: B41J

Abstract:
1. A liquid discharge method for discharging liquid from a discharge port by driving an energy generating element and applying energy to the liquid, said method comprising the steps of: driving liquid through the discharge port as a pillar-shaped liquid extending outside, said discharge port including a plurality of projections projecting toward a center of the discharge port and a plurality of arcuate portions; transferring the liquid in an area formed by the arcuate portions in a direction opposite to a discharge direction of the liquid in a condition that the liquid is stretched to connect sections on ends of the plurality of projections; and separating the pillar-shaped liquid from the stretched liquid to discharge a liquid droplet in a condition that a liquid surface of the stretched liquid is positioned in front of a liquid surface formed in the area with respect to the discharge direction.