Ronald M Stephens

US Patent:

7066572, Jun 27, 2006

Filed:

Nov 3, 2003

Appl. No.:

10/699893

Inventors:

Mark McGarry - San Diego CA, US
Robert Fogarty - San Diego CA, US
Josep-Maria Serra - San Diego CA, US
Ronald D. Stephens - Poway CA, US
Kurt Thiessen - San Diego CA, US

Assignee:

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

International Classification:

B41J 2/15
B41J 2/145

US Classification:

347 40, 347 85, 347 86

Abstract:

A printing system includes an ink reservoir, a support, a fluid conduit and a printhead assembly. The fluid conduit is fluidly coupled to the ink reservoir and includes a first fluid coupler. The printhead assembly includes a body configured to be releasably coupled to the support, a plurality of printheads coupled to the body including a first printhead and a second printhead, and a fluid passage fluidly coupled to both the first printhead and the second printhead. The fluid passage includes a second fluid coupler releasably coupled to the first fluid coupler.

US Patent:

7273262, Sep 25, 2007

Filed:

Jun 23, 2004

Appl. No.:

10/875975

Inventors:

Mark McGarry - San Diego CA, US
Robert Fogarty - San Diego CA, US
Josep-Maria Serra - San Diego CA, US
Ronald D. Stephens - Poway CA, US
Kurt Thiessen - San Diego CA, US

Assignee:

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

International Classification:

B41J 29/393
B41J 29/38
B41J 2/145
B41J 2/16

US Classification:

347 19, 347 5, 347 40, 347 49

Abstract:

A system includes a carrier, one or more printheads coupled with the carrier in a defined spatial relation, and alignment information associated with the carrier and identifying the defined spatial relation of one or more printheads.

US Patent:

7461917, Dec 9, 2008

Filed:

Dec 9, 2004

Appl. No.:

11/007931

Inventors:

Robert Fogarty - San Diego CA, US
Kurt Thiessen - Escondido CA, US
Ronald D. Stephens - Poway CA, US

Assignee:

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

International Classification:

B41J 23/00
B41J 2/01

US Classification:

347 37, 347107

Abstract:

In one embodiment, a method for printing a bar in a bar code includes computing a print resolution for printing the bar using Bar Width, Dot Size and Number of Dots where Bar Width is a desired width of the bar, Dot Size is a nominal dimension of each dot measured in a direction across the width of the bar and Number of Dots is a number of dots to be printed across the width of the bar, and adjusting a spacing between dots based on the computed print resolution.

US Patent:

20020101497, Aug 1, 2002

Filed:

Jan 30, 2001

Appl. No.:

09/774426

Inventors:

David Kwasny - Corvallis OR, US
Vladek Kasperchik - Corvallis OR, US
Ronald Stephens - San Diego CA, US
Thomas Stark - Ramona CA, US

International Classification:

B41J002/315
B41J002/32

US Classification:

347/171000

Abstract:

Clear hot stamp coating methods of creating durable protective coatings to the printed side of CD's.

US Patent:

20030207120, Nov 6, 2003

Filed:

May 16, 2003

Appl. No.:

10/439797

Inventors:

David Kwasny - Corvallis OR, US
Vladek Kasperchik - Corvallis OR, US
Ronald Stephens - San Diego CA, US
Thomas Stark - Ramona CA, US

International Classification:

B32B031/00
B32B027/00

US Classification:

428/421000, 156/230000, 156/580000

Abstract:

Clear hot stamp coating methods of creating durable protective coatings to the printed side of CD's.

US Patent:

20050012768, Jan 20, 2005

Filed:

Jul 15, 2003

Appl. No.:

10/620255

Inventors:

Kurt Thiessen - San Diego CA, US
Robert Fogarty - San Diego CA, US
Ronald Stephens - Poway CA, US
Josep-Maria Serra - San Diego CA, US
Mark McGarry - San Diego CA, US

International Classification:

B41J029/38

US Classification:

347014000, 347004000

Abstract:

Various embodiments comprise methods and systems for monitoring a production line for non-printing events, and responsive to detecting an event, ascertaining whether an operation can be effected with an inkjet printer stationed along the production line.

US Patent:

56990910, Dec 16, 1997

Filed:

Jan 8, 1996

Appl. No.:

8/584499

Inventors:

Michael L. Bullock - San Diego CA
Winthrop D. Childers - San Diego CA
B. Mark Hirst - Boise ID
Ronald D. Stephens - Escondido CA
Antoni Gil Miquel - Sabadell, ES

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

B41J 29393

US Classification:

347 19

Abstract:

A printer/copier apparatus is adapted to receive a replacement ink cartridge that is employed during the printing/copying operation. The apparatus includes a receptacle with a first connector that is coupled to a processor which controls operation of the apparatus. The cartridge includes a second connector which mates with the first connector and a serial access memory that is connected to the second connector. Data transfers are enabled both from and to the memory to enable access and modification of data stored therein that is indicative of cartridge usage, calibration, and to parameters for controlling operation of the apparatus. The invention is applicable to replaceable apparatus used with laser and ink jet printers, copiers, etc.

US Patent:

61794015, Jan 30, 2001

Filed:

Mar 4, 1998

Appl. No.:

9/034975

Inventors:

Ronald D. Stephens - Escondido CA
Don Boutin - Poway CA
Manel Martinez - Barcelona, ES
Brian Canfield - Encinitas CA
Amy Van Liew - Oceanside CA

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

M41J 2175

US Classification:

347 19

Abstract:

An inkjet printing system which provides feedback to enable the user to determine whether various replaceable components such as print cartridges, valve holders, and service station cassettes have been installed in proper position. The system includes a printhead carriage and a first sensor feedback device to determine whether a printhead is installed in an operable position on the carriage. The system also includes at least one off-carriage ink supply to which a printhead or printheads on the carriage is/are periodically connected for periodically providing ink to the printheads and a second sensor feedback device to determine whether the replaceable. off-carriage ink supplies are installed in an operable position. At least one replaceable printhead servicing module is also provided positioned to engage one or more printheads when it is moved into a printhead servicing station and a third sensor feedback device which includes a sensor on the carriage is used to read indicia on the servicing module to confirm that the servicing module is installed in an operable position in said servicing station. Separate safety doors provide access to the printhead or printheads, off-carriage ink supply or supplies and servicing module or modules.