Hewlett-packard Development Company, L.p.

Chris Arnold

Mark A Devries

Michael Lee Hilton

Greg K Justice

Andrew B Levy

Ricardo G Diaz

In one example, a single valve assembly having multiple bi-stable cam actuated valves each to open and close a corresponding one of multiple separate liquid flow channels. In one example, a liquid recovery system for an inkjet type dispenser includes a reservoir, an interconnect to connect to a removable container, a flow channel from the reservoir to a printhead unit and back to the reservoir and from the reservoir to the interconnect, a pump to pump ink from the reservoir along the flow channel, and a bi-stable cam actuated valve to open and close the flow channel downstream from the pump between the reservoir and the interconnect.

Recovery system for an inkjet type dispenser

A leak mitigation device includes a planar portion and a tail portion. The planar portion has a first width. The tail portion has a proximal end and a distal end. The proximal end is attached to the planar portion and has a second width less than the first width. The planar portion and the tail portion comprise an absorbent material.

Leak mitigation devices

A fluid supply integration module in a fluid dispensing device includes an on-board reservoir to store fluid, and a fluid interconnect to fluidically couple an external fluid supply container to the on-board reservoir. The fluid supply integration module includes a check valve system disposed between the on-board reservoir and the fluid interconnect. The check valve system includes a first check valve to permit fluid to flow in a first direction and a second check valve to permit air to flow in a second direction opposite the first direction.

Fluid supply integration module

An ink delivery system includes a plurality of ink supplies, an air pressure source to generate ink pressure for each ink supply, an ink valve associated with each ink supply, where each ink valve is configured to prevent a reverse flow of ink from a pen to the associated ink supply, and each ink valve has a switch configured to provide an open signal when the ink valve is open, and a controller configured to determine one of a normal ink condition, an out of ink condition or a system pressure problem based on receiving the open signals and to regulate the pressure source according to the determination.

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Vancouver, WA, United States of America

Chris Arnold