Liquid droplet ejection head, liquid droplet ejection...

Details Liquid droplet ejection head, liquid droplet ejection... Liquid droplet ejection head, liquid droplet ejection...

2008-07-22

2008-07-22

Nguyen, Lamson D. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S068000

Reexamination Certificate

active

07401896

ABSTRACT:
The liquid droplet ejection head has a plurality of nozzles arranged in a fixed arrangement pattern two-dimensionally in a first direction and a direction oblique to the first direction. The nozzles compose a projected nozzle row in the first direction when supposing that the nozzles are projected so as to align in the first direction; first one of the nozzles and second one of the nozzles are located in a juncture region; a distance in a second direction perpendicular to the first direction between the first and second nozzles is larger than a distance in the second direction between other two of the nozzles that are located in a region other than the juncture region and sequenced in the projected nozzle row; third at least one of the nozzles lies substantially halfway between the first and second nozzles; and the first, third and second nozzles are sequenced in the projected nozzle row.

REFERENCES:
patent: 6325489 (2001-12-01), Endo
patent: 6789877 (2004-09-01), Murakami et al.
patent: 6921149 (2005-07-01), Okuda et al.
patent: 2002/0105557 (2002-08-01), Teshigawara et al.
patent: 2004/0150693 (2004-08-01), Kojima et al.
patent: 2004-90504 (2004-03-01), None
patent: 2004-167982 (2004-06-01), None

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