Patent Number: 7,784,904

Title: Liquid jet head

Abstract: A liquid ejecting head includes a plurality of nozzles, each including an ejection outlet for ejecting a droplet, an ejection energy generating element, disposed at a position opposing the ejection outlet, for generating energy for ejecting a droplet, a pressure chamber provided with the ejection energy generating element and fluidly communicating with the ejection outlet, and a supply passage for supplying the liquid to the pressure chamber. The nozzles include a first nozzle and a second nozzle, which are connected with respective supply passages having lengths different from each other. The first nozzle and the second nozzle are disposed at one end portion with respect to a widthwise direction of an elongated supply chamber for supplying the liquid to the first nozzle. The supply passage for the first nozzle extends in a direction perpendicular to a direction of liquid ejection from the ejection outlet and fluidly communicates with the supply chamber, and wherein the supply passage for the second nozzle extends in a direction parallel with the direction of liquid ejection.

Inventors: Ide; Shuichi (Tokyo, JP), Kaneko; Mineo (Tokyo, JP), Tsuchii; Ken (Sagamihara, JP), Yamane; Toru (Yokohama, JP), Oikawa; Masaki (Inagi, JP), Tomizawa; Keiji (Yokohama, JP), Matsumoto; Mitsuhiro (Yokohama, JP), Takino; Kansui (Kawasaki, JP)

Assignee: Canon Kabushiki Kaisha

International Classification: B41J 2/145 (20060101); B41J 2/15 (20060101)

Expiration Date: 8/31/12018