Droplet ejecting apparatus and ejection abnormality...

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Reexamination Certificate

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C347S010000, C347S070000

Reexamination Certificate

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07108348

ABSTRACT:
A droplet ejecting apparatus and an ejection abnormality detecting/determining method are provided that, depending upon a capacitance change of an actuator after a droplet ejecting operation, measures the period of residual vibration on the vibration plate to thereby enable detection of an ejection abnormality and determination of a cause thereof.

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