DETERMINING WHETHER A FLOW PATH IS READY FOR EJECTING A DROP

DETERMINING WHETHER A FLOW PATH IS READY FOR EJECTING A DROP

A method of determining whether a flow path is ready for ejection includes supplying liquid to the flow path, which includes a pumping chamber and a nozzle, after supplying fluid to the flow path, applying energy to an actuator adjacent to the pumping chamber, measuring an electrical characteristic...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HOISINGTON, Paul, A, BARSS, Steven, H, OTTOSSON, Mats, G
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CORRECTION OF TYPOGRAPHICAL ERRORS
i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME
LINING MACHINES
PERFORMING OPERATIONS
PRINTING
SELECTIVE PRINTING MECHANISMS
STAMPS
TRANSPORTING
TYPEWRITERS
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Beschreibung
Zusammenfassung:A method of determining whether a flow path is ready for ejection includes supplying liquid to the flow path, which includes a pumping chamber and a nozzle, after supplying fluid to the flow path, applying energy to an actuator adjacent to the pumping chamber, measuring an electrical characteristic of the actuator to obtain a measured value, and comparing the measured value to a threshold value to determine if the flow path is ready for ejection.