Hewlett-packard Development Company, L.p.

Alfonso Cameno Salinas

Rafael Ulacia Portoles

Daniel Gonzalez Perello

Joaquim Brugue Garvi

Francesc Roure Pastor

Oscar Moya Rojo

Joan Sanjuan

Eduardo Ruiz Martinez

Emilio Angulo Navarro

Albert Crespi Serrano

Mikel Zuza Irurueta

Francesc Ros Cerro

Jorge Castano Aspas

Vicente Granados Asensio

Fernando Bayona Alcolea

Oriol Parera Fiestas

Cintia Perez Gutierrez

Jose Antonio Lopez Abancens

Jose Antonio Lopez Abances

Gemma Bolumar Barrera

In certain examples, a printing system comprises: a carriage guide extending in a longitudinal direction; a printer carriage movable, in use, along the guide; and at least one bearing to direct motion of the carriage along the carriage guide. The at least one bearing is movable, relative to the carriage guide and laterally to the longitudinal direction, from a first carriage guide contact position to a second carriage guide contact position.

Printing system

In one example, a printing fluid delivery system for a printer is described. The printing fluid delivery system includes a plurality of interconnected printing fluid supply modules forming a page-wide printing fluid manifold to supply printing fluid from one or more cartridges to one or more printheads along a print bar in a printer.

Printing fluid delivery system for printers

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 modular print engine unit for a media-wide array printer includes multiple printhead modules, each printhead module having printing dies, and each printing die having multiple nozzles. The modular print engine unit is independently operable relative to another modular print engine unit within the media-wide array printer.

Modular print engine unit

In an example, a valve for a printing fluid supply system is disclosed. In this example, the valve includes two rigid shells to provide connections to a first printing fluid supply cartridge, a second printing fluid supply cartridge and a printhead. Further, the valve includes a diaphragm with sealing elements disposed between the two rigid shells to selectively couple one of the first printing fluid supply cartridge and the second printing fluid supply cartridge to the printhead and seal other printing fluid supply cartridge using the sealing elements.

Valves for printing fluid supply systems

An example in accordance with an aspect of the present disclosure includes an ink channel of a printer, coupleable to an ink supply to receive an ink. A sensor assembly is mounted to the ink channel, including a sensor in fluid communication with the ink channel to identify an ink level of the ink supply based on a pressure difference between an air pressure, associated with the sensor assembly, and an ink pressure, associated with the ink channel.

Sensor assemblies to identify ink levels

A modular print engine unit for independently operable use in a media-wide array printer includes multiple printhead modules, each printhead module including multiple printing dies, and each printing die including multiple nozzles. The modular print engine unit further includes a printing fluid supply system to feed, in use, printing fluid to the multiple printhead modules; a print alignment module operable, in use, to align the multiple printhead modules; an error detection module operable, in use, to detect an operating status of the multiple nozzles; and a service sub-system operable, in use, to service the multiple nozzles.

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Barcelona, Spain

Alfonso Cameno Salinas