Hewlett-packard Development Company, L.p.

Francesc Ros Cerro

Richard H Lewis

Marc Bautista Palacios

Marcos Arminana Terrasa

Li Qian

Macia Sole Pons

Joan-Albert Miravet Jimenez

David Ramirez Muela

Martin Urrutia Nebreda

Xavier Gasso Puchal

Daniel Gutierrez Garcia

Holli C Ogle

Vicente Granados Asensio

Qiong Chen

Alfonso Cameno Salinas

Marina Ferran Farres

Oriol Parera Fiestas

Carlos Chover Lopez

Xavier Gros Gras

Gloria Hernandez Ballester

Alfonso Cameno

Arturo Garcia Gomez

Soon Beng Koh

Marcia Sole Pons

Macià Solé Pons

David Ramírez Muela

Emilio Jose Gongora Canada

Binte Supati Rudyani

An example printing fluid container () comprising a container body () defining a cavity (), and a piston () located within the cavity (), is described. The piston () divides the cavity () into a first chamber () to receive printing fluid and a second chamber (), fluidically isolated from the first chamber (), to receive a positively pressurized fluid.

Printing fluid container

An example of a printing fluid supply connector is described that has a first connector and a second connector, where each of the first and second connectors is to fluidly connect to a respective replaceable reservoir of printing fluid. The printing fluid supply connector also has an outlet to fluidly connect to a printer and a selector to selectively fluidly connect one of the first and second connectors to the outlet in response to an electrical control signal or to fluid pressure at the first and second connectors.

Printing fluid supply

In an example, a selection valve of a fluid supply system is disclosed. The selection valve selectively couples a source of pressurized air to one of first and second fluid supply cartridges, in the fluid supply system, to provide fluid to a printhead, the one of first and second fluid supply cartridges being coupled to the source of pressurized air at a time and other fluid supply cartridge being vented to the atmosphere. The selection valve includes a sleeve to provide interconnections with the source of pressurized air, the first and second fluid supply cartridges, and the atmosphere. Further, the selection valve includes a core disposed rotatably inside the sleeve to selectively couple the one of first and second fluid supply cartridges to the source of pressurized air and the other fluid supply cartridge to the atmosphere for switching the pressurized air between the first and second fluid supply cartridges.

Selection valves of fluid supply systems

A printing apparatus, a printing system and a method are disclosed. The method of moving printing fluid within a printing apparatus includes selectively providing a first pressure difference between a first reservoir and a second reservoir by a differential pressure system to cause the printing fluid to move from the first reservoir through a printing fluid applicator to the second reservoir. The method also includes selectively providing a second pressure difference between the first reservoir and the second reservoir by the different pressure system to cause the printing fluid to move from the second reservoir through the printing fluid applicator to the first reservoir.

Selectively provide pressure differences between reservoirs to cause printing fluid movement

An image forming system includes a fluid applicator unit, a substrate positioning unit, and a fluid collector assembly. The fluid collector assembly includes a collector substrate, a collector advancement unit, and a collector control module. The fluid applicator unit may apply fluid to a substrate. The substrate positioning unit may position the substrate in a printzone to receive the fluid from the fluid applicator unit such that a first portion of the fluid remains on the substrate and a second portion of the fluid does not remain on the substrate. The collector substrate may collect the second portion of the fluid in the printzone below the substrate. The collector advancement unit may advance the collector substrate along a collector transport path below the substrate in the printzone. The collector control module may control the collector advancement unit to selectively advance the collector substrate along the collector transport path in response to application of the fluid to the substrate by the fluid applicator unit.

Collector substrate advancement to collect fluid

A print head priming system comprises a vent closure section to close a vent, where the vent is to compensate backpressure in a print head. An inlet to receive pressurized gas from a source of pressurized gas is to provide the pressurized gas to the print head. A pressure relief valve is to open in response to pressure in the print head reaching or exceeding a predetermined value by the provision of gas to the print head by the source of pressurized gas.

Print head priming systems

Example fluid supply systems, methods and articles of manufacture are disclosed. A disclosed example fluid supply supply system includes a first receptacle to receive a first fluid supply cartridge, a second receptacle to receive a second fluid supply cartridge, and a selection valve to selectively couple a source of pressurized air to the first and second receptacles to provide a fluid to a printhead, only one of the first and second receptacles being coupled to the source of pressurized air at a time.

Fluid supply systems, methods, and articles of manufacture

An ink tank for use in a printer. In one embodiment, an ink tank includes an outer housing that defines an interior space, and an internal ink bag provided within the interior space, the ink bag being configured to be repeatedly be filled with and deliver ink, the ink tank including a metalized layer having a layer of polymeric material on which has been deposited a metal material.

Refillable ink tanks

An ink delivery system for a printer. In one embodiment, the system includes an ink supply that contains ink to be delivered to a printhead of the printer and an ink buffer positioned physically below the ink supply such that ink can flow to the ink buffer under gravity alone, the ink buffer being configured to be repeatedly filled with ink from the ink supply and to deliver that ink to the printhead.

Printer ink delivery with refill line pressure sensor

A connector for connecting to an ink container. In one embodiment, the connector includes a housing that defines an interior space, a latch lever pivotally mounted to the housing that is adapted to secure the connector to the ink container, and an internal switch provided within the interior space of the housing, the internal switch being configured to send a signal to a printer associated with the ink container when the switch is tripped, wherein the internal switch is tripped when the latch lever is pivoted by a user during disconnection of the connector from the ink container but before the connector is in fact disconnected.

Supply tube connectors for connection with an ink container

In one example, an air barrier system for a printhead assembly includes a source of pressurized air and multiple channels operatively connected to the air source to channel multiple streams of air between two printheads in the printhead assembly.

Printhead air barrier

An ink delivery system for a printer. In one embodiment, the system includes an ink supply that contains ink to be delivered to a printhead of the printer and an ink buffer having a capacity that is smaller than a capacity of the ink supply, the ink buffer being configured to be repeatedly filled with ink from the ink supply and to deliver that ink to the printhead.

Growing community of inventors

Barcelona, Spain

Francesc Ros Cerro