Liquid ejection head

Details Liquid ejection head Liquid ejection head

2006-03-16

2009-11-24

Nguyen, Lam S (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S050000, C347S055000

Reexamination Certificate

active

07621622

ABSTRACT:
The liquid ejection head comprises: a plurality of pressure chambers which are provided correspondingly to a plurality of ejection holes formed on a first wall defining the pressure chambers, the ejection holes being two-dimensionally arranged and ejecting liquid toward a liquid receiving medium, the pressure chambers accommodating the liquid to be ejected from the ejection holes; a common liquid chamber which supplies the liquid to the pressure chambers; a plurality of piezoelectric elements which are provided correspondingly to the pressure chambers and are arranged on a second wall defining the pressure chambers opposing the first wall, the piezoelectric elements each having individual electrodes to which drive signals are applied; a plurality of extending electrodes which extend from the individual electrodes of the piezoelectric elements and are electrically connected to the individual electrodes; a structural member which is bonded to a first surface of the second wall reverse to a second surface thereof adjacent to the pressure chambers, the structural member having a laminated structure in which at least two members are arranged to overlap each other, the at least two members including an outermost member having a surface in contact with atmosphere and serving as a heat radiating member, the at least two members including at least one member serving as a heat insulating member; a drive circuit which is installed on the outermost member of the structural member, the drive circuit generating the drive signals to be applied to the piezoelectric elements; and a plurality of conducting members which electrically connect the extending electrodes and the drive circuit, the conducting members having vertical conducting portions which are formed in a direction substantially vertical to a plane on which the piezoelectric elements are arranged, and horizontal conducting portions which are formed in a direction substantially perpendicular to the vertical conducting portions, the vertical conducting portions being contained in the structural member.

REFERENCES:
patent: 6616270 (2003-09-01), Miyata et al.
patent: 6945636 (2005-09-01), Sakaida et al.
patent: 2003/0206218 (2003-11-01), Miyata et al.
patent: 9-327912 (1997-12-01), None
patent: 2003-136721 (2003-05-01), None
patent: 2003-251813 (2003-09-01), None

Affiliated with

Also associated with

Rating

Liquid ejection head does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Liquid ejection head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid ejection head will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4100577