Liquid ejection head, method of manufacturing same, and...

Details Liquid ejection head, method of manufacturing same, and... Liquid ejection head, method of manufacturing same, and...

2006-02-06

2009-12-08

Meier, Stephen D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S071000

Reexamination Certificate

active

07628470

ABSTRACT:
The liquid ejection head ejects droplets of liquid from ejection ports by pressurizing the liquid filled in pressure chambers connected to the ejection ports. The liquid ejection head includes a first substrate; first conducting members which are formed by spray deposition in a column shape erecting on a surface of the first substrate in a direction substantially perpendicular to the surface of the first substrate; second conducting members which have lower hardness than the first conducting members and are formed by spray deposition on ends of the first conducting members different than ends connecting with the surface of the first substrate, pairs of the first conducting members and the second conducting members composing column-shaped electrical wires; a second substrate which is bonded to ends of the second conducting members different than ends connecting with the first conducting members; and pressure generating elements which are formed on one of the first substrate and the second substrate, the pressure generating elements being connected to the electrical wires and generating pressure change in the liquid inside the pressure chambers by being driven by drive signals applied through the electrical wires.

REFERENCES:
patent: 5459501 (1995-10-01), Lee et al.
patent: 6491384 (2002-12-01), Usui et al.
patent: 6891314 (2005-05-01), Sato et al.
patent: 5-47771 (1993-02-01), None
patent: 6-310243 (1994-11-01), None

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