Incremental printing of symbolic information – Ink jet – Medium and processing means
Patent
1999-04-29
2000-12-12
Eickholt, Eugene
Incremental printing of symbolic information
Ink jet
Medium and processing means
400568, 400569, 310 68R, 318490, 178 41A, 178 42, B41J 201
Patent
active
061588571
ABSTRACT:
An ink-jet printer for ink-jet printing onto a print media. The printer has an ink-jet cartridge for ejecting ink onto a print medium during printing operations. A rotating drum platen holds a print medium on an outer surface thereof, the drum platen having an interior volume defined therein and an end wall extending transversely to the outer surface. A carriage holds the cartridge in a closely arranged position relative to the external surface of the drum. A drum drive apparatus rotates the drum to move the print medium in relation to the printhead of the cartridge. The printer further has a printer controller mounted in a fixed position relative to a printer chassis, and an electronic circuit disposed in the interior volume of the drum platen. A data communication link passes data between the printer controller and the electronic circuit. The data link includes a capacitor comprising a first capacitor ring structure mounted to the end wall concentric to an axis of rotation of the platen, and a second capacitor ring structure mounted in fixed relation to the drum platen adjacent the end surface and in close proximity to the first capacitor ring structure.
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Eickholt Eugene
Hewlett--Packard Company
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