Patent ID: 7517057

Claim:
A nozzle arrangement for an inkjet printhead, the nozzle arrangement comprising: a substrate that incorporates drive circuitry and defines an ink inlet channel; at least one wall extending from the substrate; a roof fast with the at least one wall and defining an ink ejection port which is in fluid communication with an ink chamber defined by the roof, the at least one wall and the substrate, the ink chamber being in fluid communication with the ink inlet channel; and an ink ejection member interposed between the ink inlet channel and the ink ejection port such that reciprocal movement of the ink ejection member causes ejection of ink from the ink ejection port; an actuator which is connected to the drive circuitry at a fixed end and is configured so that a free end is displaced reciprocally with respect to the substrate on receipt of an electrical signal by the actuator from the drive circuitry; and a movement transfer mechanism interposed between the free end of the actuator and the ink ejection member such that reciprocal movement of the free end is transferred to the ink ejection member.