David J Platt

7121658, Oct 17, 2006

Jan 7, 2004

10/753042

David P. Platt - Sherwood OR, US
Nasser Alavizadeh - Tigard OR, US
Michael F. Deily - Lake Oswego OR, US

Xerox Corporation - Stamford CT

B41J 2/175

347 87, 347 93

A print head reservoir for use in an ink jet printer includes a body, an ink bucket, and a filter. The body defines an ink cavity. The cavity includes a cavity inlet, a cavity outlet and a vent positioned above the cavity inlet for bleeding air from the ink cavity. The ink bucket attaches to the body. The ink bucket communicates with the cavity via the cavity inlet. The filter is disposed in the cavity dividing the cavity into an upstream filter cavity and a downstream filter cavity.

7144100, Dec 5, 2006

Jan 7, 2004

10/752950

Rodney B. Hill - Silverton OR, US
David P. Platt - Sherwood OR, US

Xerox Corporation - Stamford CT

B41J 2/05

347 65

A print head reservoir includes a plate having first and second sides and a passage extending through said plate. The plate defines an angled channel in communication with the passage and an outlet region.

7188941, Mar 13, 2007

Jan 7, 2004

10/753112

David P. Platt - Sherwood OR, US
Edward F. Burress - Wilsonville OR, US
James M. Bonicatto - Portland OR, US

Xerox Corporation - Stamford CT

B41J 2/175

347 87

A valve for a printing apparatus that uses liquid ink includes a valve seat, a valve stop and a valve member interposed between the valve seat and the valve stop.

7204571, Apr 17, 2007

Jan 8, 2004

10/753596

David P. Platt - Sherwood OR, US
Michael E. Jones - West Linn OR, US

Xerox Corporation - Stamford CT

B41J 25/308

347 8, 347 20, 347112

A system for maintaining alignment between a print head () and a transfer surface () of a drum assembly () includes a first contacting member () carried by the print head. A first receiving member () is carried by the drum assembly. A drive mechanism () translates the print head relative to the transfer surface. During translation of the print head relative to the transfer surface, the first contacting member maintains a sliding contact with the first receiving member.

7581827, Sep 1, 2009

Apr 26, 2006

11/411678

David Paul Platt - Newberg OR, US
Brent Rodney Jones - Sherwood OR, US

Xerox Corporation - Norwalk CT

B41J 2/175
G01D 11/00

347 88, 347 99, 347 85

A solid ink stick melting apparatus is incorporated in a phase change printer to provide melted ink under pressure to a print head. The solid ink stick melting apparatus includes an ink stick melt chamber having an enclosure with at least one heated wall, an inlet for receiving an ink stick, and an outlet for melted ink flow from the enclosure, and a seal mounted proximate the inlet to engage an ink stick passing through the seal so that the seal and the ink stick form a barrier and retain melted ink within the enclosure.

7682008, Mar 23, 2010

Dec 5, 2006

11/567161

David P. Platt - Newberg OR, US
Sharon S. Berger - Canby OR, US
Jonathan R. Brick - Tualatin OR, US

Xerox Corporation - Norwalk CT

B41J 2/19
B41J 2/05

347 92, 347 65

A printhead reservoir assembly has at least one reservoir to hold ink. The assembly includes an outlet plate having siphon vents to allow air to exit an ink path, a manifold plate having at least one manifold to channel ink and manifold outlets to corresponding to the siphon vents, a jet stack having an array of jets to transfer ink out of the printhead reservoir assembly to a printing substrate and jet stack outlets corresponding to the siphon vents, and a circuit board between the jet stack and the manifold plate to operate the jet stack, the circuit board having outlets corresponding to the siphon vents.

7743267, Jun 22, 2010

Nov 8, 2006

11/594397

Trevor James Snyder - Newberg OR, US
Amy Rachel Bartlett - Portland OR, US
Jennifer M. Miyamoto - Portland OR, US
David Russel Sponable - Salem OR, US
Jasper Kent Wong - Portland OR, US
Marcia Dawn Haney - Oregon City OR, US
David Paul Platt - Newberg OR, US
Debra Ranee Koehler - Sherwood OR, US
Timothy Rob Golik - Portland OR, US
Mark Harris Tennant - West Linn OR, US

Xerox Corporation - Norwalk CT

G06F 1/00
G06F 1/26
G06F 1/32

713320, 713300, 713324

A system and process enable a device to adjust the duration of various power modes based on usage of the device. The process includes operating a device at a fully operational power level, counting a first wait time, modifying a first wait time modifier in response to detection of image generating device use prior to expiration of the first wait time, and reducing power consumption from the fully operational level to a low power level in response to expiration of the first wait time.

7748830, Jul 6, 2010

Nov 27, 2006

11/563294

David Paul Platt - Newberg OR, US
David Roland Koehler - Sherwood OR, US
Terrance L. Stephens - Molalla OR, US
James Dudley Padgett - Lake Oswego OR, US

Xerox Corporation - Norwalk CT

B41J 2/175

347 85, 347 87, 347 93

A printhead reservoir has an input ink port and a chamber to receive ink from an ink source through the input ink port. The reservoir also has a filter in a path between the input ink port and the chamber. A printhead includes a reservoir having an input ink port, a chamber to receive ink from an ink source through the input port and a filter in a path between the input port and the storage plate. The printhead also includes an array of jets to draw ink from the chamber and control circuitry to control the jets so as to selectively output ink through the jets onto a substrate. A reservoir has a filter to receive ink, a vented chamber to collect ink received from the filter and at least one jet to receive ink from the vented chamber. The vented chamber is between the ink filter and the fluid path to the jets in order to remove the filter portion of the pressure drop to the jets.