Patent ID: 7219982

Claim:
A printer nozzle for ejecting ink, the printer nozzle comprising: a body defining a chamber, the body having an ejection aperture through which ink can be ejected; and a flexible diaphragm for extending across a diaphragm aperture in the body, the diaphragm comprising a plurality of corrugations, wherein ridges and troughs of said corrugations extend in a first linear direction across said aperture; the diaphragm further comprising a plurality of conductors which, in use, extend through a magnetic field, the diaphragm flexing when current flows through the conductors, the conductors extending along said diaphragm substantially transverse to said corrugations; the diaphragm being sized so that at least one gap is provided between the diaphragm and the body; wherein, in use, ink supplied to the chamber through the gap is ejected through the ejection aperture when the diaphragm flexes into the chamber.