Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2006-03-21
2006-03-21
Tran, Huan (Department: 2861)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S065000
Reexamination Certificate
active
07014298
ABSTRACT:
An inkjet printhead having minimal thermal crosstalk is provided. The printhead comprises a substrate having an ink ejection side and an opposite ink supply side. The ink ejection side supports an array of ink ejection nozzles, with each ink ejection nozzle comprising a chamber having an ink inlet, a nozzle aperture, and a thermal actuator for ejecting ink from the chamber through the nozzle aperture. The substrate defines ink feed channels for the ink ejection nozzles. Each of the ink feed channels extends from at least one ink inlet towards the ink supply side of the substrate, thereby providing fluid connection between the at least one ink inlet and the ink supply side. Each of the ink feed channels is at least 50 microns long.Feeding ink to the chambers from the opposing side of the substrate through relatively long feed channels practically eliminates, or at least dampens, any fluidic effects on adjacent nozzles.
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U.S. Appl. No. 09/425,191, filed Oct. 19, 1999, Silverbrook.
Silverbrook Research Pty Ltd
Tran Huan
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