Recorders – Markers and/or driving means therefor – With ink supply to marker
Patent
1992-04-02
1994-01-11
Grimley, A. T.
Recorders
Markers and/or driving means therefor
With ink supply to marker
346 11, G01D 1518
Patent
active
052785840
ABSTRACT:
This invention provides an improved ink flow path between an ink reservoir and vaporization chambers in an inkjet printhead. In the preferred embodiment, a barrier layer containing ink channels and vaporization chambers is located between a rectangular substrate and a nozzle member containing an array of orifices. The substrate contains two linear arrays of heater elements, and each orifice in the nozzle member is associated with a vaporization chamber and heater element. The ink channels in the barrier layer have ink entrances generally running along two opposite edges of the substrate so that ink flowing around the edges of the substrate gain access to the ink channels and to the vaporization chambers.
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Childers Winthrop D.
Keefe Brian J.
McClelland Paul H.
Steinfield Steven W.
Trueba Kenneth E.
Dang Thu
Grimley A. T.
Hewlett--Packard Company
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