Hewlett-Packard Development Company, L.p.

Maria Dinares Argemi

Ronald Albert Askeland

Brian J Keefe

Lawrence H White

Francisco Lopez Moral

Xavier Gasso Puchal

Chandrasekhar Nadimpalli

Steven Warren Steinfield

Xavier Bruch

Marta Coma Vives

Mauricio Seras Franzoso

David Ramirez Muela

Rafael Ulacia Portoles

Thomas Michael Sabo

Jeffrey Allen Wagner

Alex Andrea Tallada

Macia Sole Pons

David Butinya

Gonzalo Gaston Llado

Josep Ortiz Mompel

Dorkaitz Alain Vazquez Fernandez

Maria Magdalena Martinez Ferrandiz

Xavier Bruch Pla

Yit Hong Tor

Jason Jolly

Curtis N Torgerson

Ronald A Askeland

Jeffrey A Wagner

Daniel V Keane

Alyssa M Siegman

According to an example, a printhead storage device comprises a printhead pocket to receive a printhead, a receptacle with an interior chamber wherein printing fluid is provided, and a fluid interconnect device comprising a fluid path with the interior chamber. Upon insertion of a printhead to the pocket, the fluid interconnect device is connected to the printhead, thereby providing a fluid connection between the printhead and the interior chamber and wherein the printhead is not operable when inserted in the printhead pocket.

Air ingestion prevention

Example methods for the maintenance of printheads are provided, the printheads comprising a reservoir containing a printing fluid with particles in suspension, and a nozzle plate. Example methods may comprise capping the nozzle plate of the printhead, and rotating the capped printhead. Example maintenance devices for printheads are also provided, comprising a support with a socket to attach a printhead to the support, a drive unit to rotate the support about a rotation axis, and a control unit connected to the drive unit to perform a predetermined rotation cycle.

Printhead maintenance

Methods and apparatus to control a heater associated with a printing nozzle are disclosed. A method comprising controlling a heater associated with a printing nozzle to reduce a heat output of the heater based on a determination that the printing nozzle is outside a print area and printing an image on a substrate using other printing nozzles while the heat output of the heater is reduced.

Methods and apparatus to control a heater associated with a printing nozzle

A system for monitoring ink flow is disclosed. In one embodiment, the system includes a printhead configured to perform a priming event, a heating element, a sensor configured to measure the temperature of a printhead die at a plurality of times, and a processor configured to determine the success of a priming event by comparing an actual cooling rate to a threshold cooling rate.

Monitoring ink flow

Various embodiments and methods relating to wiping of a print head are disclosed.

Print head wiping

Growing community of inventors

Terrassa, Spain

Maria Dinares Argemi