Method and Apparatus for Elimination of Misdirected Satellite Drops in Thermal Ink Jet Printhead

Method and Apparatus for Elimination of Misdirected Satellite Drops in Thermal Ink Jet Printhead

An apparatus and method for ejecting ink droplets from a plurality of nozzles (27) located in the front face (29) of a printhead controls front face geometries to ensure consistent image quality. A front face (29) dicing angle and a thick film insulative layer (18) etchback are controlled to maintai...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KUHMAN, DANIEL E, LORENZE, ROBERT V., JR
Format: Patent
Sprache:eng ; fre
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:An apparatus and method for ejecting ink droplets from a plurality of nozzles (27) located in the front face (29) of a printhead controls front face geometries to ensure consistent image quality. A front face (29) dicing angle and a thick film insulative layer (18) etchback are controlled to maintain a Spot Aspect Ratio of each of the droplets ejected from the printhead within a predetermined acceptable range. The Spot Aspect Ratio may be maintained by control of an effective meniscus tilt angle.