Liquid ejection head and image forming apparatus

Details Liquid ejection head and image forming apparatus Liquid ejection head and image forming apparatus

Filed on

2005-09-30

Date issued

2009-12-01

Examiner

Meier, Stephen D (Department: 2853)

Patent Class

Incremental printing of symbolic information

SubClass

Ink jet

SubSubClass

Ejector mechanism

Other Related Categories

C347S068000

Type

Reexamination Certificate

Status

active

Patent number

07625070

Description

ABSTRACT:
The liquid ejection head including: a plurality of ejection ports which eject liquid to a recording medium; a plurality of pressure chambers which are connected respectively to the ejection ports; a plurality of piezoelectric elements which respectively deform the pressure chambers and are provided on a side of the pressure chambers opposite to a side on which the ejection ports are formed; a common liquid chamber which is provided on the side of the pressure chambers opposite to the side on which the ejection ports are formed; and a plurality of wiring members which are formed in such a manner that at least a portion thereof rises upward through the common liquid chamber in a substantially perpendicular direction with respect to a surface on which the piezoelectric elements are disposed, each of the wiring members containing driving wires through which driving signals are applied respectively to at least two of the piezoelectric elements.

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