Daniel T Dowell

US Patent:

7510274, Mar 31, 2009

Filed:

Jan 21, 2005

Appl. No.:

11/040941

Inventors:

Jeremy A Davis - Battle Ground WA, US
Melissa S. Gedraitis - Circle Camas WA, US
Marc A. Baldwin - Corvallis OR, US
Louis Barinaga - Vancouver WA, US
Daniel D Dowell - Albany OR, US
Ashley E Childs - Corvallis OR, US
Mark A. Smith - Corvallis OR, US
Charles R. Steinmetz - Corvallis OR, US
Ralph L. Stathem - Lebanon OR, US
Jeffrey D. Langford - Lebanon OR, US
Michael L. Hilton - Monmouth OR, US

Assignee:

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

International Classification:

B41J 2/19
B41J 2/18

US Classification:

347 92, 347 89

Abstract:

An ink delivery system having at least one off-axis ink supply container and an on-axis printhead assembly. The printhead assembly includes at least one reservoir and a corresponding standpipe separated by a particle filter. At least one tube connects the off-axis ink supply container to the printhead assembly. A first valve is configured to selectively open a flow path between the tube and the reservoir. A second valve is configured to selectively open a flow path between the standpipe and the tube.

US Patent:

7997698, Aug 16, 2011

Filed:

Oct 30, 2008

Appl. No.:

12/261709

Inventors:

Jeremy A Davis - Battle Ground WA, US
Melissa S. Gedraitis - Camas WA, US
Marc A. Baldwin - Corvallis OR, US
Louis Barinaga - Vancouver WA, US
Daniel D Dowell - Albany OR, US
Ashley E Childs - Corvallis OR, US
Mark A. Smith - Corvallis OR, US
Charles R. Steinmetz - Corvallis OR, US
Ralph L. Stathem - Lebanon OR, US
Jeffrey D. Langford - Lebanon OR, US
Michael L. Hilton - Vancouver WA, US

Assignee:

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

International Classification:

B41J 2/175

US Classification:

347 85

Abstract:

An ink delivery system having at least one off-axis ink supply container and an on-axis printhead assembly. The on-axis printhead assembly includes at least one reservoir and a corresponding standpipe separated by a particle filter. At least one tube connects the off-axis ink supply container to the on-axis printhead assembly. A first valve is configured to selectively open a flow path between the tube and the reservoir. A second valve is configured to selectively open a flow path between the standpipe and the tube.

US Patent:

20090058956, Mar 5, 2009

Filed:

Oct 30, 2008

Appl. No.:

12/261580

Inventors:

JEREMY A. DAVIS - Battle Ground WA, US
Melissa S. Gedraitis - Camas WA, US
Marc A. Baldwin - Corvallis OR, US
Louis Barinaga - Vancouver WA, US
Daniel D. Dowell - Albany OR, US
Ashley E. Childs - Corvallis OR, US
Mark A. Smith - Corvallia OR, US
Charles R. Steinmetz - Corvallis OR, US
Ralph L. Stathem - Lebanon OR, US
Jeffrey D. Langford - Lebanon OR, US
Michael L. Hitton - Vancouver WA, US

International Classification:

B41J 2/175

US Classification:

347 85

Abstract:

An ink delivery system having at least one off-axis ink supply container and an on-axis printhead assembly. The printhead assembly includes at least one reservoir and a corresponding standpipe separated by a particle filter. At least one tube connects the off-axis ink supply container to the printhead assembly. A first valve is configured to selectively open a flow path between the tube and the reservoir. A second valve is configured to selectively open a flow path between the standpipe and the tube.A method for controlling effects of accumulated air in a printhead assembly. The printhead assembly has at least one ink reservoir and one standpipe separated by a particle filter. The printhead assembly is fluidicly connected to at least one off-axis ink supply container by at least one tube. The method includes drawing air from said printhead assembly through said standpipe into the tube.