Incremental printing of symbolic information – Ink jet – Controller
Patent
1994-10-06
1997-02-18
Royer, William J.
Incremental printing of symbolic information
Ink jet
Controller
347 42, 347 63, B41J 2938
Patent
active
056045190
ABSTRACT:
Described is an ink delivery system for an array of nozzle orifices in a print cartridge comprising an ink reservoir; a substrate having a plurality of individual ink firing chambers with an ink firing element in each chamber; an ink channel connecting said reservoir with said ink firing chambers, said channel including a primary channel connected at a first end with said reservoir and at a second end to a secondary channel; a separate inlet passage for each firing chamber connecting said secondary channel with said firing chamber for allowing high frequency refill of the firing chamber; a group of said firing chambers in adjacent relationship forming a primitive in which only one firing chamber in said primitive is activated at a time; first circuit means on said substrate connected to said firing elements; and second circuit means on said cartridge connected to said first circuit means, for transmitting firing signals to said ink firing elements at a frequency greater than 9 kHz.
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Chapman Terri I.
Childers Winthrop D.
Courian Kenneth J.
Ho May F.
Keefe Brian J.
Hewlett--Packard Company
Royer William J.
Stenstrom Dennis G.
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