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
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.