Contoured orifice plate of thermal ink jet print head

Details Contoured orifice plate of thermal ink jet print head Contoured orifice plate of thermal ink jet print head

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.

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