Patent ID: 7467851

Claim:
A nozzle arrangement for an inkjet printer, the nozzle arrangement comprising: a substrate defining an ink supply conduit; a shelf layer positioned on the substrate and defining a shelf which covers the ink supply conduit and an opening in fluid communication with the ink supply conduit; a static wall extending from the shelf layer and surrounding the opening; an anchor extending from the shelf layer outside the static wall; a roof structure defining a movable wall which extends adjacent the static wall to define a nozzle chamber and a ink ejection port through which ink provided via the opening to the nozzle chamber can be ejected; and a bend actuator extending away from the anchor and terminating in the roof structure, the bend actuator being capable of bending and straightening reciprocally to displace the roof structure to vary the volume of the nozzle chamber and eject ink therein through the ink ejection port.