Patent ID: 7625070

Claim:
A liquid ejection head, comprising: 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 and contain the liquid to be ejected through the ejection ports; a plurality of piezoelectric elements which respectively deform the pressure chambers to eject the liquid contained in the pressure chambers through the ejection ports, the piezoelectric elements being 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 connected to the pressure chambers and contains the liquid to be supplied to the pressure chambers, the common liquid chamber being 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 and passes 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, and wherein the wiring members are formed in a shape of a column and are separate from an inner wall of the common liquid chamber which is perpendicular to the surface on which the piezoelectric elements are disposed.