Hewlett-packard Development Company, L.p.

Yit Hong Tor

Brian J Keefe

Lawrence H White

Garrett E Clark

Thomas Michael Sabo

Andrew F Phillips

Alex Andrea Tallada

Gonzalo Gaston Llado

Chandrasekhar Nadimpalli

Francisco Lopez Moral

Christopher Hans Bakker

Ana Cristina Garcia Alvarez

Glenn D McCloy

Maria Dinares Argemi

Maria Magdalena Martinez Ferrandiz

Xavier Bruch Pla

Glory J Abadilla

Ronald A Askeland

Jeffrey A Wagner

Daniel V Keane

Alyssa M Siegman

Glenn D Mccloy

A printing apparatus includes a printhead having a nozzle to eject liquid and an actuator associated with the nozzle. A controller is provided to activate a recovery sequence including heating the printhead without firing drops in a first phase, activating the actuator to fire 1000 drops or more from the nozzle in a second phase after the first phase, and heating the printhead and applying pressure to expel liquid from the nozzle in a third phase after the second phase.

Printhead recovery

An apparatus and method support a plurality of print head dies () on a print bar (). The plurality of print head dies () comprise a print head die () having a circuit () forming a series () of information bits (), wherein bit locations in the series () are mapped to information type definitions based on a location of the print head die () on the print bar () relative to other print head dies () on the print bar ().

Print head bit information mapping

Growing community of inventors

San Diego, CA, United States of America

Yit Hong Tor