Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1998-05-14
2000-10-17
Brase, Sandra
Incremental printing of symbolic information
Ink jet
Ejector mechanism
B41J 214
Patent
active
061320285
ABSTRACT:
An orifice plate for a thermal ink jet print head has a plurality of orifice apertures, with a major surface occupying a first plane. The plate has a surrounding region surrounding each of the orifices, and the surrounding region has an offset portion with an offset surface offset from the first plane. The offset portion may be above or below the first plane, and may include concentric inner and outer regions, with the outer region above the first plane, and the inner region recessed below the outer region.
REFERENCES:
patent: 4413268 (1983-11-01), Bentin
patent: 5487483 (1996-01-01), Kubby
patent: 5595785 (1997-01-01), Hindagolla et al.
patent: 5786832 (1998-07-01), Yamanaka et al.
Su Wen-Li
Ward Jefferson P.
Brase Sandra
Hewlett--Packard Company
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