公开(公告)号：US08857953B2

公开(公告)日：2014-10-14

申请号：US13714679

申请日：2012-12-14

Applicant: Canon Kabushiki Kaisha

Inventor： Toshio Suzuki ,  Shinan Wang ,  Toru Nakakubo ,  Manabu Sueoka ,  Tsunenori Soma ,  Ryota Kashu

IPC: B41J2/045 ,  B41J2/14

CPC classification number: B41J2/14201 ,  B41J2/14209 ,  B41J2002/14491 ,  B41J2202/12 ,  B41J2202/19

Abstract: A liquid ejection head includes a piezoelectric block body having a plurality of pressure chambers arranged two-dimensionally to face respective ejection ports, a plurality of air chambers arranged adjacently relative to the plurality of pressure chambers, and a plurality of flow channels arranged along the pressure chambers. The pressure chambers are deformed by expansion and contraction of piezoelectric members disposed between the pressure chambers and the air chambers so as to drive the liquid stored therein to flow toward the ejection ports. A connection flow channel is provided at the ejection port side of the piezoelectric block body so as to make each of the pressure chambers communicate with at least one of the flow channels for partial recirculation of the ink.

Abstract translation: 液体喷射头包括：压电块体，其具有二维布置以面对各个喷射口的多个压力室;相对于多个压力室相邻布置的多个气室;以及沿压力布置的多个流动通道 房间。 压力室通过设置在压力室和空气室之间的压电元件的膨胀和收缩而变形，从而驱动储存在其中的液体流向喷射口。 连接流路设置在压电块体的喷射口侧，以使每个压力室与用于油墨的部分再循环的流动通道中的至少一个连通。