초록 ▼

A liquid ejecting head having at least two liquid ejecting head portions, the liquid ejecting head portions each includes a plurality of ejection outlets for ejecting liquid; a plurality of bubble generating regions for generating bubbles in the liquid; and a plurality of movable members each of whi

A liquid ejecting head having at least two liquid ejecting head portions, the liquid ejecting head portions each includes a plurality of ejection outlets for ejecting liquid; a plurality of bubble generating regions for generating bubbles in the liquid; and a plurality of movable members each of which is displaceable between a first position and a second position farther from the bubble generating region than the first position; wherein the movable member is displaced from the first position to the second position by pressure produced by the generation of the bubble in the bubble generating portion to permit expansion of the bubble more in a downstream side closer to the ejection outlet than in an upstream side; an amount of ejection is controlled beforehand by changing at least one of a dimension and a position of the movable member.

대표청구항 ▼

[ What is claimed is:] [1.] A liquid ejecting head having at least a first and a second liquid ejecting head portions, said liquid ejecting head portions each comprising:a plurality of ejection outlets for ejecting liquid;a plurality of bubble generating regions for generating bubbles in the liquid;

[ What is claimed is:] [1.] A liquid ejecting head having at least a first and a second liquid ejecting head portions, said liquid ejecting head portions each comprising:a plurality of ejection outlets for ejecting liquid;a plurality of bubble generating regions for generating bubbles in the liquid; anda plurality of movable members each of which is displaceable between a first position and a second position farther from said bubble generating region than the first position;wherein said movable member is displaced from said first position to said second position by a pressure produced by generation of the bubble in said bubble generating portion to permit expansion of the bubble more in a downstream side closer to the ejection outlet than in an upstream side;wherein at least dimensions of said movable members of said first and second liquid electing head portions are different to provide different amount of ejections of the liquid by said first and second liquid ejecting head portions.