Hewlett-packard Development Company, L.p.

Hewlett-packard Company

Roger J Kolodziej

Wesley R Schalk

Ali Emamjomeh

Brian J Keefe

Judson Malcolm Leiser

Paul Mark Haines

Ronald J Ender

Lynn A Collie

David N Olsen

Michael E Peterschmidt

Miquel Boleda Busquets

Steve A O'Hara

Michael John Regan

Bernd Karlsboeck

Paul Allan Osborne

Jeremy Harlan Donaldson

Domingo A Figueredo

Gregory T Hindman

Jaime S Hardisty

Harold Lee Van Nice

David Brian Olsen

Howard G Wong

Christopher John Arnold

Ki Jung Han

Ulrich E Hess

Grant Allen Webster

Terri I Chapman

John P Whitlock

Steve A O′hara

Steve A O'hara

A print liquid supply apparatus or interface structure to be connected to a print system comprises a liquid channel, liquid interface and integrated circuit contact pads.

Print liquid supply

A method for filling a reservoir of a printing device that includes conducting an unattended refill process of an internal reservoir in response to a detection of a fluid supply unit. In an example, the supply dock fluidically, electrically, and mechanically couples to the fluid supply unit to the printing device.

Unattended reservoir refillings

A printing device interface to receive a fluid supply may include a fluid dock arranged on an external surface of a housing of the printing device, the fluid dock further arranged to receive a mechanical interface of a fluid supply wherein the arrangement of the fluid dock on the external surface of the housing enables use of a center of mass and weight of the fluid supply to maintain a mechanical, fluidic, and electrical connection with the fluid supply.

Fluid supplies

An ink-jet printhead is provided having a thin film substrate comprising a plurality of thin film layers; a plurality of ink firing heater resistors defined in said plurality of thin film layers; a polymer fluid barrier layer; and a carbon rich layer disposed on said plurality of thin film layers, for bonding said polymer fluid barrier layer to said thin film substrate.

Ink-jet printhead and method for producing the same

A page-wide inkjet print head is formed by assembling individual glass fiber tube sections, which are then sintered together drawn to thin or neck the diameter of the orifices, slicing the glass tube sections and depositing individual semiconductor control circuits in or approximate to the top of the glass tube sections. Ink reservoirs can supply water based ink that flows through the glass tube sections but which is held in place by capillary action. Ink is ejected by heating a semiconductor resistive element deposited into one open end of the tube section so as to cause the ink to be ejected onto a print medium.

Glass-fiber thermal inkjet print head

A thermal ink jet printhead that includes a thin film substrate including a plurality of thin film layers, a plurality of ink firing heater resistors defined in the plurality of thin film layers, a patterned tantalum carbide layer disposed on the plurality of thin film layers, an ink barrier layer disposed over the tantalum carbide layer, and respective ink chambers formed in the ink barrier layer over respective thin film resistors, each chamber formed by a chamber opening in barrier layer. The tantalum carbide layer forms an oxidation and wear resistance layer and/or a barrier adhesion layer.

Transition metal carbide films for applications in ink jet printheads

A thermal ink jet printhead that includes an adhesion interface between a silicon carbide layer of a thin film substrate and a polymer ink barrier layer in the vicinity of ink chambers formed in the polymer ink barrier layer, and an adhesion interface between a silicon carbide layer disposed on the ink barrier layer and an orifice plate. An intervening adhesion promoter can be located between the silicon carbide layer of the thin film substrate and the polymer ink barrier layer, and between the silicon carbide layer disposed on the ink barrier layer and the orifice plate.

Structure to effect adhesion between substrate and ink barrier in ink

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Corvallis, OR, United States of America

Roger J Kolodziej