Liquid ejection head

Details Liquid ejection head Liquid ejection head

2005-09-29

2010-06-29

Meier, Stephen D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S058000, C347S068000

Reexamination Certificate

active

07744194

ABSTRACT:
The liquid ejection head comprises: ejection elements which include a plurality of ejection holes through which liquid is ejected, a plurality of pressure chambers in communication with the plurality of ejection holes, and a plurality of piezoelectric elements each of which deforms each of the pressure chambers and is provided on a side of the plurality of pressure chambers opposite from a side on which the ejection holes are formed; a common liquid chamber which supplies the liquid to the plurality of pressure chambers and is provided on a side of the pressure chambers opposite from the side on which the ejection holes are formed; a plurality of wiring members each of which is formed in such a manner that at least a portion of the wiring member rises upward from each of the piezoelectric elements or a vicinity of each of the piezoelectric elements through the common liquid chamber in a direction substantially perpendicular to a surface on which the piezoelectric elements are disposed, each of the wiring members including a conducting member which transmits at least one signal of a signal to be supplied to one of the ejection elements and a signal obtained from one of the ejection elements, and a covering member which is formed so as to cover the conducting member; and a coupling member which joins at least two of the wiring members adjacent to each other.

REFERENCES:
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patent: 6439702 (2002-08-01), Karlinski
patent: 6481074 (2002-11-01), Karlinski
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patent: 7201473 (2007-04-01), Sakaida
patent: 7628470 (2009-12-01), Mita
patent: 2001/0015739 (2001-08-01), Usui et al.
patent: 2003/0030705 (2003-02-01), Koike et al.
patent: 2003/0088969 (2003-05-01), Karlinski
patent: 2005/0036013 (2005-02-01), Watanabe et al.
patent: 2003-512211 (2003-04-01), None
patent: WO 01/30577 (2001-05-01), None

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