Canon Kabushiki Kaisha

Tamon Itaya

Koichi Kitakami

A liquid ejection method wherein a bubble is created in the liquid on a heat generating member provided on a substrate by thermal energy generated by the heat generating member, by which a droplet of the liquid is ejected, the method comprising the steps of contacting to the substrate such a portion of gas-liquid interface between the bubble and the liquid as is not contacted to the substrate by deformation of the bubble: and causing the bubble to be in fluid communication with ambiance simultaneously with or after the contact between the portion and the substrate.

Liquid ejecting method, liquid ejecting head and liquid ejecting apparatus

The present invention provides a liquid-ejecting head, a method of ejecting liquid, and a liquid-ejecting printing apparatus, which permit an image-printing with the high quality by stabilizing volumes, flying velocities, and deposition points of ejected liquid droplets and preventing the generation of splash or mist of the liquid droplets. Thus, a heater having a heating portion on the side of the liquid chamber which is broader than a heating portion of the opposite side of the liquid chamber relative to a projected point where a centroid of any cross section of the orifice in parallel with the substrate is projected on the substrate. A shape of a cross section of the orifice in parallel with the substrate which is projected on the substrate from the side of the orifice plate has a combination of two ellipse portions figures in which a centroid and a plan of the heater are coincident with each other.

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Tokyo, Japan

Tamon Itaya