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US 4,415,909 AGranted
Multiple nozzle ink jet print head
AssigneeNCR Corporation
InventorsVictor J. Italiano, Steven P. Sayko
Life of this patent
Estimating the term…
Abstract
An ink jet printer has an arrangement of nozzles in a symmetrical pattern and formed by tubular ink channels with cylindrical piezoelectric crystal or like transducers surrounding the tubular channels. The arrangement of nozzles is contained in a small and compact package and is capable of serial printing dot matrix characters in columnar manner.
Claims8
An ink jet print head comprising a housing and a
- plurality of print actuators arranged in a generally circular symmetrical pattern and including tubular members having nozzles axially parallel therewith and equally spaced whereby time of actuation of the respective actuators is time delayed to enable serial printing and equal dot spacing of dot matrix characters in columnar manner on record media spaced from said nozzles during travel of the print head in one direction.
An ink jet printer comprising a housing, and an
- odd number of ink jet print actuators positioned in a generally circular symmetrical pattern within the housing and including cylindrical members having nozzles axially parallel therewith and spaced in relation to each other whereby time of actuation of the respective actuators is time delayed to provide serial printing and equal dot spacing of dot matrix characters in columnar manner on record media spaced from the nozzles during travel of the printer in one direction.
Dependencies are inferred from the claim text.