Liquid ejection head, liquid ejection apparatus and image forming apparatus

液体吐出ヘッド、液体吐出装置及び画像形成装置

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid ejection head in which a pressure loss balance of a nozzle and a supply throttle which communicates with each pressure chamber is made stable among the pressure chambers, and to provide a liquid ejection apparatus and an image forming apparatus. <P>SOLUTION: The liquid ejection head is equipped with a plurality of ejection ports which eject a liquid, a plurality of the pressure chambers which communicate with each of the plurality of ejection ports, a common liquid chamber in which the liquid to be supplied to the plurality of pressure chambers is stored, and the supply throttle which constitutes at least a part of a supply passage that makes the common liquid chamber and the pressure chambers communicate with each other. At least a part of the supply throttle and the ejection ports which communicate with the separate pressure chambers is worked by the same laser beam. <P>COPYRIGHT: (C)2006,JPO&NCIPI
【課題】 各圧力室に連通する供給絞り及びノズルの圧損バランスが各圧力室間で安定した液体吐出ヘッド、液体吐出装置及び画像形成装置を提供する。 【解決手段】液体を吐出する複数の吐出口と、前記複数の吐出口のそれぞれと連通する複数の圧力室と、前記複数の圧力室に供給する液体が貯留される共通液室と、前記共通液室と前記圧力室を連通する供給流路の少なくとも一部を構成する供給絞りと、を備え、個々の前記圧力室と連通する吐出口及び供給絞りは、少なくともその一部が同一のレーザビームで加工されていることを特徴とする液体吐出ヘッドを提供することにより、前記課題を解決する。 【選択図】 図11

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