Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1996-09-11
2000-08-29
Barlow, John
Incremental printing of symbolic information
Ink jet
Ejector mechanism
B41J 2135
Patent
active
061097284
ABSTRACT:
An ink jet printing head includes a nozzle plate having an outside surface and a plurality of nozzles for discharging ink from the outside surface, each nozzle having a first diameter at a peripheral edge of the nozzle plate. A surface treatment layer is provided on the outside surface of the nozzle plate, the surface treatment layer having a plurality of openings overlapping the plurality of nozzles, each opening having a second diameter at a peripheral edge of the surface treatment layer, the second diameter being smaller than the first diameter.
REFERENCES:
patent: 4528070 (1985-07-01), Gamblin
patent: 4733447 (1988-03-01), Ageishi
patent: 4947184 (1990-08-01), Moynihan
patent: 5443687 (1995-08-01), Koyama et al.
patent: 5759421 (1998-06-01), Takemoto et al.
patent: 5838347 (1998-11-01), Inamoto et al.
Kakuda Shinichi
Ohta Yoshihisa
Barlow John
Dickens C.
Ricoh & Company, Ltd.
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