Inkjet printhead having nozzle chambers with redundant ink...

Details Inkjet printhead having nozzle chambers with redundant ink... Inkjet printhead having nozzle chambers with redundant ink...

2011-08-23

2011-08-23

Stephens, Juanita D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S054000, C347S065000

Reexamination Certificate

active

08002386

ABSTRACT:
An inkjet printhead includes: a substrate; a row of nozzle chambers disposed on the substrate; an ink conduit extending longitudinally adjacent the row of nozzle chambers; and a nozzle plate spanning over the ink conduit and the row of nozzle chambers. Each nozzle chamber has a respective ink ejection opening defined in the nozzle plate; a first ink inlet defined in a sidewall of the nozzle chamber for receiving ink from the ink conduit; and a second ink inlet defined in a floor of the nozzle chamber. Each of the first and second ink inlets is in fluid communication with a common ink reservoir.

REFERENCES:
patent: 5519423 (1996-05-01), Moritz et al.
patent: 6543879 (2003-04-01), Feinn et al.
patent: 7841697 (2010-11-01), McAvoy et al.
patent: 2007/0081032 (2007-04-01), Silverbrook
patent: 2007/0081044 (2007-04-01), Silverbrook
patent: 1336486 (2003-08-01), None
patent: 1491340 (2004-12-01), None

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