| 摘要 |
An inkjet printhead includes a substrate assembly and a plurality of nozzle assemblies arranged in an array on the substrate assembly. Each nozzle assembly includes an anchor extending from the substrate assembly. A thermal bend actuator is connected to the anchor and includes a pair of spaced apart beams. A nozzle includes a crown portion and a skirt portion which depends from the crown portion, and also defines an opening through which ink can be ejected. An endless wall extends from the substrate assembly and surrounds the skirt portion to define a nozzle chamber in fluid communication with the opening. A lever arm connects the thermal bend actuator to the nozzle so that, upon actuation, the actuator moves the nozzle with respect to the wall so as to vary the volume of the nozzle chamber and thereby eject ink in the nozzle chamber through the opening.
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