Method and print head for flow conditioning a fluid

Details Method and print head for flow conditioning a fluid Method and print head for flow conditioning a fluid

2005-05-04

2009-10-27

Feggins, K. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

07607766

ABSTRACT:
A continuous inkjet print head jets a plurality of fluid streams from an array of multiple nozzle channels. The print head includes a flow conditioning means that establishes fully developed flow in one or more regions of the print head such that substantially equal flow conditions are created at each of the inlets of the multiple nozzle channels. The substantially equal flow conditions reduce nozzle-to-nozzle variations with respect to the required trajectories of the jetted fluids to improve jet pointing and thus lead to better print quality.

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patent: 4638327 (1987-01-01), Sutera et al.
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patent: 7033003 (2006-04-01), Martin et al.
patent: 0 287 372 (1991-07-01), None
patent: 1 219 424 (2005-02-01), None

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