Liquid drop discharge head and method of manufacturing the same

申请公布号：EP1795353(A2)

申请号：EP20060024284

申请日期：2006.11.23

申请公布日期：2007.06.13

申请人：

SEIKO EPSON CORPORATION

发明人：OYA, KAZUFUMI;MATSUNO, YASUSHI

分类号：B41J2/14

主分类号：B41J2/14

摘要：A liquid drop discharge head of four-layer structure according to an aspect of the invention including: a nozzle substrate (1) having a plurality of nozzle holes (11); a cavity substrate (3) having a plurality of independent discharge chambers (31) that communicate with the respective nozzle holes and generate a pressure in the chambers for discharging liquid drops through the nozzle holes; and a reservoir substrate (2) forming a reservoir space (23,23A) that communicates commonly with the discharge chambers, wherein the reservoir substrate has a diaphragm portion (25,25A) provided by reducing the thickness of a part of a wall surface forming the reservoir space.

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