Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Reexamination Certificate
2005-10-11
2008-12-30
Luu, Matthew (Department: 2861)
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
C347S092000
Reexamination Certificate
active
07470010
ABSTRACT:
An inkjet printhead with an array of ink chambers defined by sidewalls extending between a nozzle plate and an underlying wafer substrate, each chamber having a nozzle in the nozzle plate plurality of nozzles, and an actuator for ejecting ink through the nozzle, one of the sidewalls of each chamber having an opening to allow ink to refill the chamber; an ink conduit between the nozzle plate and underlying wafer, the ink conduit being in fluid communication with the openings of a plurality of the ink chambers; and, a plurality of ink inlets defined in said substrate; wherein, the ink conduit is in fluid communication with the plurality of ink inlets for receiving ink to supply to the ink chambers. Introducing an ink conduit that supplies several of the nozzles, and is in itself supplied by several ink inlets, reduces the chance that nozzles will be starved of ink by inlet clogging. If one inlet is clogged, the ink conduit will draw more ink from the other inlets in the wafer.
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Luu Matthew
Seo Justin
Silverbrook Research Pty Ltd
LandOfFree
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