Hewlett-packard Development Company, L.P.

James Mannion

Bryan Murphy

Eugene Cahill

Kevin Rourke

William Scott Osborne

David B Novak

John Breen

John McNeilly

John A Doran

Patrick Lynch

Fiona Coyle

Declan Coyne

Erick Blane Kinas

Tong Nam Samuel Low

Kelvin Chiew

Brian Cronly

Cormac O'Beirne

Joe Ronaldson

SeeMun Phoong

John Enright

Brian Walsh

John Mcneilly

There is disclosed a fluid containeruseable with print apparatus. The fluid container comprises a primary modulecomprising: a primary reservoirto contain print fluid and a regulated chamberto receive the print fluid from the primary reservoir. The regulated chambercomprises a regulator unitto actuate a gas control valveto control a flow of relief gas into the fluid containeras print fluid is discharged from the fluid container. The fluid container comprises a secondary modulecomprising a secondary reservoirto contain print fluid. The primary reservoiris to receive the print fluid from the secondary reservoirvia a re-supply conduitbetween the secondary reservoirand the primary reservoir. The secondary reservoiris to receive the relief gas via the gas control valve, and the primary reservoiris to receive the relief gas via the secondary reservoir

Fluid containers

A print agent vessel is disclosed that comprises a circuit, the circuit comprising a first electrically conductive portion to couple to a first terminal of a printing device, a second electrically conductive portion to couple to a second terminal of the printing device, and an electrically conductive component capacitively coupled to the first electrically conductive portion. The circuit has a variable capacitance that is indicative of a parameter of the component.

Container for fluid

In an example, there is provided a closure device. The closure device comprises an air-permeable and ink-impermeable membrane to prevent ink egress from a refillable ink tank of a printer. The membrane has an ink tank side and an air side. The closure device also comprises a tortuous air flow path connecting the air side of the membrane to an exterior of the ink tank.

Closure devices

Liquid supply or reservoir therefore having multiple compartments, each compartment to hold a distinct liquid, comprising multiple liquid outlets, each fluidically connected to one of the compartments, multiple clearance cut outs disposed at a pitch equal to a pitch of the compartments to accommodate protrusions of a dispenser, and at least one latch protruding outwards from a supply wall.

Replaceable liquid supply having cut outs and latch

Growing community of inventors

Leixlip, Ireland

James Mannion