Hewlett-packard Development Company, L.P.

William Black

Bryan Murphy

Patrick V Boyd

Aidan O'Reilly

Ivor Cummins

Lynn Walsh

Willie Sheehan

Ben Smith

Brian Cronly

Susan Henry

Declan Malone

Charles Keegan

An apparatus to supply print fluid () to a print fluid delivery system () of a printer, the apparatus comprising a tank () to store print fluid (); a print fluid supply conduit () coupled to the tank () to supply print fluid () to the print fluid delivery system (); and a vent conduit () extending from the tank (); the tank () movable from a first position to supply print fluid () and in which first position the print fluid supply conduit () and vent conduit () are open to a second position to permit filling of the tank () and in which movement to the second position closes the print fluid supply conduit () and vent conduit ().

Print fluid tank

One example provides an article. The article includes a container body. The article includes a lid covering the container body, the lid including a lid aperture to permit passage of a printing fluid into the container body. The article includes a lid manifold mounted to the lid. The lid manifold includes a lid manifold input port to be fluidly connected to and disconnected from a container manifold port of a separate printing system. The lid manifold includes a lid manifold output opening that is in the form of a needle having a length of less than or equal to about 6 mm and is fluidly connected to the lid aperture. The lid manifold includes a channel fluidly connecting the lid manifold input port and the lid manifold output opening.

Containers with lid manifolds

Different examples of systems, reservoirs and methods are described. One of these examples involves includes a reservoir with a liquid outlet through which liquid is to exit the reservoir. The reservoir may further include a bubbler structure to supply air to the inner volume of the reservoir, the bubbler structure includes an air outlet.

Reservoir and bubble structure

An apparatus, such as a flow restriction apparatus, is provided. The flow restriction apparatus includes an ink outlet perforating through a tank wall of a printing fluid reservoir of a user-refillable inkjet printer system. The ink outlet facilitates fluid communication between the printing fluid reservoir and an inkjet pen of the printer system. Printing fluid from the printing fluid reservoir enters the ink outlet from the printing fluid reservoir under suction pressure exerted by the inkjet pen. A screen is located inside the printing fluid reservoir and separates the printing fluid reservoir from the ink outlet. The screen is ink permeable. The screen includes a screen aperture having an effective radius smaller than a meniscus of a droplet of printing fluid at atmospheric pressure within the printing fluid reservoir.

Apparatus for a printer system

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Leixlip, Ireland

William Black