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发明授权
US08870325B2 Compensating for capacitance changes in piezoelectric printhead elements 有权
补偿压电打印头元件的电容变化

Compensating for capacitance changes in piezoelectric printhead elements
摘要：
In an embodiment, a method of compensating for capacitance change in a piezoelectric element of a fluid ejection device includes sensing a current driving a piezoelectric element, determining from the current that capacitance of the piezoelectric element has changed, and altering a rise time of the current driving the piezoelectric element to compensate for the changed capacitance.
摘要（中）：

在一个实施例中，补偿流体喷射装置的压电元件中的电容变化的方法包括感测驱动压电元件的电流，从电流确定压电元件的电容已经改变，并且改变电流的上升时间 驱动压电元件来补偿改变的电容。

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