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发明授权
CN104441991B 打印装置以及打印装置的控制方法 有权

打印装置以及打印装置的控制方法
摘要：
打印装置及其控制方法。打印装置具备第1喷出部和第2喷出部，具备根据驱动信号位移的压电元件、根据压电元件的位移而内部的压力增减的压力室及能够喷出压力室的内部所填充的液体的喷嘴；检测部，检测表示向第1喷出部的压电元件供给驱动信号后产生的该压电元件的电动势的变化的第1残余振动信号和表示向第2喷出部的压电元件供给驱动信号后产生的该压电元件的电动势的变化的第2残余振动信号；判定部，在第1残余振动信号表示的波形的周期属于第1范围的情况下判定第1喷出部的液体的喷出状态正常，在第2残余振动信号表示的波形的周期属于第2范围的情况下判定第2喷出部的液体的喷出状态正常，第2范围的至少一部分包含与第1范围不同的范围。
摘要（英）：

A printing apparatus includes a piezoelectric element which is displaced according to a driving signal; a first ejection unit and a second ejection unit that include nozzles capable of ejecting; a detection unit that detects a first and second residual vibration signal; and a determination unit that determines an ejection state of the liquid in the first ejection unit to be normal in a case where a cycle of a waveform indicated by the first residual vibration signal belongs to a first range and determines an ejection state of the liquid in the second ejection unit to be normal in a case where a cycle of a waveform indicated by the second residual vibration signal belongs to a second range, in which a part or all of the second range includes a range which is not included in the first range.

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