David R Lowe

US Patent:

6414701, Jul 2, 2002

Filed:

Aug 9, 1999

Appl. No.:

09/370722

Inventors:

Preston Dow Seu - Vancouver WA
David J. Lowe - Vancouver WA
Clement C. Lo - Lake Oswego OR

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

B41J 201

US Classification:

346136

Abstract:

A printing media cartridge for a drum-type hard copy apparatus has printing media supply within the drum. Printable sheet lengths of printing medium are extracted from the interior of the drum through a slot such that individual prints can be produced using the drum outer surface as a platen. Removing a print from the platen extracts the next sheet length from within the drum which is then automatically wrapped back onto the drums outer surface and aligned for the next print cycle. Printer control encoding is provided with the cartridge.

US Patent:

6493937, Dec 17, 2002

Filed:

Mar 16, 1998

Appl. No.:

09/039604

Inventors:

James P Axtell - Portland OR
Trudy L Benjamin - Portland OR
David J Lowe - Vancouver WA
Preston D. Seu - Vancouver WA
Blair M. Kent - Vancouver WA

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

B21D 5376

US Classification:

298901, 347108, 347 49

Abstract:

A manufacturing method provides ink-jet writing engine modules for use with a compatible hard copy engine module, a hard copy apparatus based thereon, and methods of manufacturing, operation, and use. Fluidic and electronic partitioning for ink-jet hard copy apparatus is redefined. Modular separation of a hard copy engine from a writing engine allows a replaceable writing module containing all of the key elements of the ink-jet writing system based on writing system technology requirements, particularly for those most likely to age or fail as a result of time, frequency of use, or end-user actions. The writing engine subsystem includes: one or more printing modules having print head elements with concomitant ink manifold components and ink flow and pressure regulation mechanisms; one or more ink containersâeither permanent, refillable, or replaceable; one or more ink formulations; one or more ink delivery means, such as tubes and valves fluidically coupling the ink containers to the ink manifolds; service station components; and a framework to retain the elements in a unitary module, insertable cassette-like manner.

US Patent:

7578591, Aug 25, 2009

Filed:

Sep 14, 2006

Appl. No.:

11/532059

Inventors:

Blair M. Kent - Vancouver WA, US
James P. Axtell - Vancouver WA, US
Trudy Benjamin - Vancouver WA, US
David Lowe - Vancouver WA, US
Preston Seu - Sammish WA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

B41J 3/36

US Classification:

347109

Abstract:

A tip to be placed on a fluid-ejection device is filled with fluid. The fluid may be introduced into a substantially hollow body of the tip at a first end of the body. The body of the tip has a second end at which a fluid-ejection mechanism is disposed to eject the fluid as controlled by the fluid-ejection device. The fluid may be introduced into the substantially hollow body of the tip through of the fluid-ejection mechanism disposed at the second end of the body of the tip. The tip may further be identified and/or serviced, and the tip and/or the fluid-ejection device my further be validated.

US Patent:

7935317, May 3, 2011

Filed:

Sep 14, 2006

Appl. No.:

11/532046

Inventors:

James P. Axtell - Vancouver WA, US
Blair M. Kent - Vancouver WA, US
Jeffrey A. Nielsen - Vancouver WA, US
Manish Giri - Corvallis OR, US
Trudy Benjamin - Vancouver WA, US
David Lowe - Vancouver WA, US
Ronald R. Anderson - Corvalllis OR, US
Preston Seu - Sammish WA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

B01L 3/02

US Classification:

422500, 422501, 422509, 422511, 422521, 422522, 422524, 422525, 7386401

Abstract:

A fluid-ejection device includes a handheld and/or mountable enclosure, a pneumatic fitting, an electrical connector, and a controller. The pneumatic fitting extends from and/or through the enclosure and is receptive to placement of a tip thereon. The tip contains a supply of fluid, a fluid-ejection mechanism, and an electrical connector for the fluid-ejection mechanism. The electrical connector extends from and/or through the enclosure and is receptive to electrical coupling of the electrical connector of the tip. The controller is situated within the enclosure to cause the tip to eject the fluid via the electrical coupling of the electrical connectors of the tip and the fluid-ejection device.

US Patent:

8002371, Aug 23, 2011

Filed:

Jul 12, 2009

Appl. No.:

12/501451

Inventors:

Blair M. Kent - Vancouver WA, US
James P. Axtell - Vancouver WA, US
Trudy Benjamin - Vancouver WA, US
David Lowe - Vancouver WA, US
Preston Seu - Sammish WA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

B41J 29/38

US Classification:

347 6, 347 9

Abstract:

A tip to be placed on a fluid-ejection device is filled with fluid. The fluid may be introduced into a substantially hollow body of the tip at a first end of the body. The body of the tip has a second end at which a fluid-ejection mechanism is disposed to eject the fluid as controlled by the fluid-ejection device. The fluid may be introduced into the substantially hollow body of the tip through of the fluid-ejection mechanism disposed at the second end of the body of the tip. The tip may further be identified and/or serviced, and the tip and/or the fluid-ejection device may further be validated.

US Patent:

62643223, Jul 24, 2001

Filed:

May 10, 2000

Appl. No.:

9/568277

Inventors:

James P Axtell - Portland OR
Trudy L Benjamin - Portland OR
David J Lowe - Vancouver WA
Preston D. Seu - Vancouver WA
Blair M. Kent - Vancouver WA

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

B41J 21175

US Classification:

347108

Abstract:

The present invention provides ink-jet writing engine modules for use with a compatible hard copy engine module, a hard copy apparatus based thereon, and methods of manufacturing, operation, and use. Fluidic and electronic partitioning for ink-jet hard copy apparatus is redefined. Modular separation of a hard copy engine from a writing engine allows a replaceable writing module containing all of the key elements of the ink-jet writing system based on writing system technology requirements, particularly for those most likely to age or fail as a result of time, frequency of use, or end-user actions. The writing engine subsystem includes: one or more printing modules having print head elements with concomitant ink manifold components and ink flow and pressure regulation mechanisms; one or more ink containers--either permanent, refillable, or replaceable; one or more ink formulations; one or more ink delivery means, such as tubes and valves fluidically coupling the ink containers to the ink manifolds; service station components; and a framework to retain the elements in a unitary module, insertable cassette-like manner. The present invention further provides a hard copy engine compatible with such a writing engine. The hard copy engine does not contain any components requiring direct contact with ink.

US Patent:

62577174, Jul 10, 2001

Filed:

May 10, 2000

Appl. No.:

9/568112

Inventors:

James P Axtell - Portland OR
Trudy L Benjamin - Portland OR
David J Lowe - Vancouver WA
Preston D. Seu - Vancouver WA
Blair M. Kent - Vancouver WA

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

B41J 2175

US Classification:

347108

Abstract:

The present invention provides ink-jet writing engine modules for use with a compatible hard copy engine module, a hard copy apparatus based thereon, and methods of manufacturing, operation, and use. Fluidic and electronic partitioning for ink-jet hard copy apparatus is redefined. Modular separation of a hard copy engine from a writing engine allows a replaceable writing module containing all of the key elements of the ink-jet writing system based on writing system technology requirements, particularly for those most likely to age or fail as a result of time, frequency of use, or end-user actions. The writing engine subsystem includes: one or more printing modules having print head elements with concomitant ink manifold components and ink flow and pressure regulation mechanisms; one or more ink containers--either permanent, refillable, or replaceable; one or more ink formulations; one or more ink delivery means, such as tubes and valves fluidically coupling the ink containers to the ink manifolds; service station components; and a framework to retain the elements in a unitary module, insertable cassette-like manner. The present invention further provides a hard copy engine compatible with such a writing engine. The hard copy engine does not contain any components requiring direct contact with ink.

US Patent:

60828544, Jul 4, 2000

Filed:

Mar 16, 1998

Appl. No.:

9/039735

Inventors:

James P Axtell - Portland OR
Trudy L Benjamin - Portland OR
David J Lowe - Vancouver WA
Preston D. Seu - Vancouver WA
Blair M. Kent - Vancouver WA

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

B41J 201

US Classification:

347108

Abstract:

The present invention provides ink-jet writing engine modules for use with a compatible hard copy engine module, a hard copy apparatus based thereon, and methods of manufacturing, operation, and use. Fluidic and electronic partitioning for ink-jet hard copy apparatus is redefined. Modular separation of a hard copy engine from a writing engine allows a replaceable writing module containing all of the key elements of the ink-jet writing system based on writing system technology requirements, particularly for those most likely to age or fail as a result of time, frequency of use, or end-user actions. The writing engine subsystem includes: one or more printing modules having print head elements with concomitant ink manifold components and ink flow and pressure regulation mechanisms; one or more ink containers--either permanent, refillable, or replaceable; one or more ink formulations; one or more ink delivery means, such as tubes and valves fluidically coupling the ink containers to the ink manifolds; service station components; and a framework to retain the elements in a unitary module, insertable cassette-like manner. The present invention further provides a hard copy engine compatible with such a writing engine. The hard copy engine does not contain any components requiring direct contact with ink.