Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1994-04-29
1997-06-03
Fuller, Benjamin R.
Incremental printing of symbolic information
Ink jet
Ejector mechanism
B41J 205
Patent
active
056359683
ABSTRACT:
A printhead includes a substrate with an ink feed aperture extending from a first surface to a second surface and a plurality of heater resistors disposed on it. Primitive groupings of the resistors are coupled to associated group power sources. An ink barrier layer is deposited on the substrate to create ink firing chambers for each resistor. One wall of the ink barrier has a constricted opening through which ink is supplied from the ink feed aperture. A plurality of transistors are disposed in the substrate with each transistor output coupled to an associated one of the resistors and each input coupled to one of a plurality of addressing signal lines. The number of addressing signal lines is equal to the number of resistors in a primitive grouping.
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Bhaskar Eldurkar V.
Fasen Duane A.
Hess Ulrich E.
Leban Marzio
Nielsen Niels J.
Fuller Benjamin R.
Hallacher Craig A.
Hewlett--Packard Company
Jenski Raymond A.
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