公开(公告)号：US20170129239A1

公开(公告)日：2017-05-11

申请号：US15337658

申请日：2016-10-28

Applicant: SII Printek Inc.

Inventor： Yuzuru KUBOTA ,  Taihei YAMAGUCHI

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/14209 ,  B41J2/1433 ,  B41J2/1609 ,  B41J2/162 ,  B41J2/1642 ,  B41J2/1643 ,  B41J2002/14411 ,  B41J2002/14491

Abstract: A manufacturing method of a liquid jet head includes: a groove formation step of forming ejection grooves and non-ejection grooves alternately in the upper surface of an actuator substrate; a cover plate processing step of forming a recessed portion in the upper surface of a cover plate and slits penetrating from the bottom surface of the recessed portion to the lower surface opposite to the upper surface; an electrode formation step of forming conductive films on the both side surfaces and front surface of the ejection grooves, the both side surfaces of the non-ejection grooves, the inner surfaces of the slits and the recessed portion, and the lower surface of the cover plate; and a substrate joining step of joining the lower surface of the cover plate to the upper surface of the actuator substrate so as to communicate the slits with the ejection grooves.