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AssigneeSeiko Epson Corporation
InventorDaichi Orihara
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A liquid ejection apparatus includes an ejection portion including a piezoelectric element driven, a pressure chamber filled with a liquid and having a volume that changes according to driving, and a nozzle ejecting the liquid in the pressure chamber according to a change of the volume of the pressure chamber, a detection unit detecting a vibration signal indicating a potential of the piezoelectric element that varies according to a vibration remaining in the ejection portion after driving of the piezoelectric element and generating a detection signal based on the detected vibration signal, and a setting unit setting a signal amplification factor based on liquid characteristic information related to characteristics of the liquid ejected by the ejection portion and element characteristic information related to characteristics of the piezoelectric element, wherein the detection unit generates the detection signal by amplifying the vibration signal according to the signal amplification factor set by the setting unit.
A liquid ejection apparatus comprising:
A liquid ejection head comprising:
A method of controlling a liquid ejection apparatus including a piezoelectric element driven by a drive signal, a pressure chamber filled with a liquid and having a volume that changes according to driving of the piezoelectric element, and a nozzle ejecting the liquid in the pressure chamber according to a change of the volume of the pressure chamber, the method comprising:
Dependencies are inferred from the claim text.