Patent ID: 7490923

Claim:
A liquid ejection head, comprising: a conductive nozzle plate, formed with a nozzle orifice; an insulative layer, formed on a first face of the nozzle plate; a head body, including a pressure chamber adapted to contain liquid therein and a pressure generating element operable to cause pressure fluctuation in the liquid, the head body attached to a second face of the nozzle plate so as to communicate the pressure chamber with the nozzle orifice; a head case, to which the second face of the nozzle plate and the head body are fixed; a conductive head cover, covering a part of the first face of the nozzle plate while exposing the nozzle orifice, wherein a part of the nozzle plate and the head cover directly come into contact with each other, and a projection is formed on the head cover so as to come in contact with the nozzle plate through the insulative layer.