IMPEDANCE MEASUREMENT OF INDIVIDUAL ACTUATORS OF A PIEZOELECTRIC PRINT HEAD

A method for measuring an impedance of each of a plurality of piezoelectric actuators of a print head, each piezoelectric actuator connected to electronic selection circuitry of the print head that drives the piezoelectric actuators during a print operation. The method includes generating a waveform...

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Bibliographische Detailangaben
1. Verfasser:	Knierim, David L
Format:	Patent
Sprache:	eng
Schlagworte:	CORRECTION OF TYPOGRAPHICAL ERRORS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PERFORMING OPERATIONS PHYSICS PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TESTING TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	A method for measuring an impedance of each of a plurality of piezoelectric actuators of a print head, each piezoelectric actuator connected to electronic selection circuitry of the print head that drives the piezoelectric actuators during a print operation. The method includes generating a waveform to drive a drive rail of the print head, the drive rail connected to the electronic selection circuitry of the print head and measuring an impedance of each of the plurality of piezoelectrical actuators of the print head through the electronic selection circuitry.