Hewlett-packard Company

Hewlett-packard Development Company, L.p.

John Farrar Wilson

Charles R Steinmetz

David N Olsen

Norman E Pawlowski

Bruce Cowger

John A Underwood

Curt G Gonzales

John A Barinaga

Susan M Hmelar

David O Merrill

Glen E Schmidt

Mark Joseph Green

Thomas G Cocklin

Anthony Donald Studer

Daniel W Petersen

David Ridgway Otis, Jr

Robert S Wickwire

An example device includes a frame having at least one outer opening and at least one inner opening recessed from the outer opening, at least one filter screen mounted on a perimeter of the at least one inner opening to form an inner chamber, at least one cover layer mounted on a perimeter of the at least one outer chamber to form an outer chamber, and a series of bubblebreaking features positioned within the inner chamber. The bubble-breaking features are positioned along a depth and a height of the inner chamber. The filter screen separates the inner chamber from the outer chamber, and the filter screen prevents froth from crossing and allows coalesced fluid to cross into the outer chamber.

Froth coalescing

A printing-fluid container includes a reservoir and an air-interface on the reservoir. The printing-fluid container also includes a separation assembly configured to block escape of printing fluid through the air-interface and to allow movement of air through the air-interface.

Printing-fluid venting assembly

An ink containment and delivery system provides high sustained flow rates, allows higher &ldquo;burst&rdquo; (short time interval) flow rates, and allows bubble movement through the system conduits to the printhead, all while holding the printhead ink pressure in a range required for optimum printhead operation. The system includes an ink supply with a first, upstream pressure regulator which maintains a negative ink pressure within the ink supply. A second, downstream pressure regulator at the printhead maintains negative pressure in the printhead, and allows some compliance about the set point. The ink containment and delivery system allows drool-free separability of the ink supply and the printhead.

Ink containment and delivery techniques

The present disclosure relates to an ink supply container for containing ink. The ink supply container is configured for providing ink to an ink jet printing system. The ink container includes a first feature indicative of an ink family of a plurality of ink families associated with ink contained in the container. Also included is a second feature spaced from the first feature. The second feature is indicative of an ink color of a plurality of ink colors associated with ink in the container.

Method and apparatus for keying ink supply containers

Growing community of inventors

Corvallis, OR, United States of America

John Farrar Wilson