Hewlett-Packard Development Company, L.p.

Hewlett-Packard Company

David A Bradley, Jr

Michael Walter Keyes

Donald B Ouchida

Kevin J Urlaub

Richard A Becker

John B R Dunn

Roger W Squire

A print cartridge identification system includes a housing, a family key provided on one side of the housing to identify an associated printer of the print cartridge, a fluid key provided on the one side of the housing to identify a property of fluid in the print cartridge, and a location datum provided on the one side of the housing to position the print cartridge in the associated printer.

Print cartridge identification system and method

A shutter for a print head of a print cartridge is provided. The shutter includes a cover movably attachable to the print cartridge. The cover is movable between a closed position to cover the print head and an open position to expose the print head. An arm is pivotally attachable to the print cartridge and is movably attached to the cover. A biasing device for biasing the cover in the closed position is attached to the arm and is attachable to the print cartridge.

Print head shutter

A universal inkjet cartridge body with multiple ink reservoirs that can be used for single color or multiple color applications. The ink flow routing is accomplished by merely changing the printhead-to-body sealing structure, which can be an adhesive pattern. This allows for all the reservoirs' inks to be mixed at the head for one cartridge configuration, or the respective inks can be directed to different parts of the printhead for a multiple color application. The same cartridge body structure can be used for two or more cartridge configurations. A nose piece structure defines multiple ink channels leading from the respective ink reservoirs to a printhead mounting region. The sealing structure is applied to mount the printhead to the nose piece and to complete the ink path routing from the reservoirs to the printhead nozzle array(s).

Techniques for providing ink-jet cartridges with a universal body structure

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Boise, ID, United States of America

David A Bradley, Jr