| 摘要 |
An inkjet printhead is provided having an array of ink chambers each including a nozzle and an actuator for ejecting ink through the nozzle and being defined by sidewalls extending between a nozzle plate and underlying wafer substrate with one sidewall having an opening to allow ink to refill the chamber, an ink conduit between the nozzle plate and underlying substrate, and a plurality of ink inlets defined in the substrate. Each conduit is in fluid communication with the openings the chambers and with at least one of the inlets for receiving ink to supply to the chambers. The actuators are unitary planar thermal actuators which have a heater element extending between two contacts forming an electrical connection with respective electrodes provided by drive circuitry. Each of the actuators extend through at least two adjacent chambers so as to simultaneously eject ink from the adjacent chambers through their respective nozzles.
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