Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Reexamination Certificate
2008-02-28
2011-12-06
Kim, Ellen (Department: 2874)
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
C347S084000, C347S087000
Reexamination Certificate
active
08070279
ABSTRACT:
A liquid ejection head including a plurality of nozzles, a plurality of pressurizing liquid chambers, a liquid supply portion, and a filter portion. The plurality of nozzles ejects liquid droplets. The plurality of pressurizing liquid chambers are in fluid communication respectively with the nozzles. The liquid supply portion includes a plurality of individual supply channels and a fluid-communicating portion. The plurality of individual supply channels are in fluid communication respectively with the pressurizing liquid chambers to supply a liquid to the pressurizing liquid chambers. The fluid-communicating portion keeps the plurality of individual supply channels in fluid communication with one another. The filter portion is positioned to face the individual supply channels of the liquid supply portion and filters the liquid supplied to the pressurizing liquid chambers.
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U.S. Appl. No. 11/786,725, filed Apr. 11, 2007.
Aug. 30, 2011 Japanese official action in connection with a counterpart Japanese patent application.
Cooper & Dunham LLP
Kim Ellen
Ricoh & Company, Ltd.
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