Patent attributes
An ink jet nozzle assembly for an inkjet printer includes a substrate that defines an ink supply channel. An integrated circuitry layer is positioned on the substrate and incorporates a microprocessor and a first electrical contact connected to the microprocessor. A nozzle chamber structure is positioned on the substrate and defines a nozzle chamber in fluid communication with the ink supply channel and an ink ejection port from which ink can be ejected. An actuator is fast with respect to the support and terminates in a free end within the housing. The actuator is electrically connected to the integrated circuitry layer and has a second actuator connected to the microprocessor via the actuator. The microprocessor is configured to detect the rate of movement of the actuator to a predetermined position beyond an operating position of the actuator arm and to determine whether the detected rate is greater than a normal rate for desired actuation of the actuator arm so as to detect an over-actuation condition.
