Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2007-12-12
2009-06-30
Stephens, Juanita D (Department: 2853)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S045000, C347S071000
Reexamination Certificate
active
07552992
ABSTRACT:
Provided are a liquid jet head unit and a liquid jet device which are capable of improving precision in aligning nozzle orifices and accordingly printing quality. The liquid jet head includes: a liquid jet head having a nozzle plate provided with nozzle rows constituted of nozzle orifices through which liquid droplets are ejected, and which are arranged side by side; a head case fixed to the liquid jet head at the side of liquid supply ports; and a cover head provided to a liquid-droplet ejecting surface of the liquid jet head. An exposed area in the nozzle plate, which is not covered by the cover head, includes: nozzles provided respectively with water repellent films in peripheries of their nozzle orifices; and nozzles which have the same shape as the former nozzles, and which respectively have non-water repellent portions provided with no water repellent film in peripheries of their nozzle orifices.
REFERENCES:
patent: 4343013 (1982-08-01), Bader et al.
patent: 6206499 (2001-03-01), Iijima et al.
patent: 7044578 (2006-05-01), Owaki et al.
patent: 7328965 (2008-02-01), Owaki
patent: 9-123461 (1997-05-01), None
patent: 10-34920 (1998-02-01), None
Seiko Epson Corporation
Stephens Juanita D
Sughrue & Mion, PLLC
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