Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Deane A. Gardner0
Date of Patent
July 7, 2009
0Patent Application Number
109818880
Date Filed
November 5, 2004
0Patent Primary Examiner
Patent abstract
Charge leakage prevention and voltage drift prevention on a droplet ejection device for an inkjet printer. In one method to prevent charge leakage on a droplet ejection device with a switch and a piezoelectric actuator, the method includes controlling the switch to drive the piezoelectric actuator with the waveform input signal during a droplet firing period, and controlling the switch to drive the piezoelectric actuator with a constant voltage level during a non-firing period.
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