Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1999-01-29
2000-12-05
Nguyen, Thinh
Incremental printing of symbolic information
Ink jet
Ejector mechanism
347 40, 347 75, B41J 221, B41J 2145, B41J 215, B41J 202
Patent
active
06155670&
ABSTRACT:
A method and apparatus for improving inkjet print quality uses a printhead having an array using a plurality of nozzles in sets in each drop generator mechanism. Where a conventional inkjet pen fires a single droplet of ink at a target pixel per firing cycle, the present invention simultaneously ejects a plurality of droplets at different subdivisions of pixels. Drop generators of a printhead array includes a plurality of nozzles for the drop generators arranged such that the light absorption of the sum of the simultaneously ejected ink droplets is like that of conventionally ejected drops but distributed over an area of the printed medium greater than that of a conventional target pixel.
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Davis Colin C.
Harmon John P.
McClellan Paul J.
Seccombe S. Dana
Waller David J.
Hewlett--Packard Company
Jenski Raymond A.
Nguyen Thinh
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