Silverbrook Research Pty Ltd

Frederik Jacobus Crous

Kia Silverbrook

Samuel George Mallinson

Angus John North

Paul Justin Reichl

Jennifer Mia Fishburn

Roger Mervyn Lloyd Foote

Paul David Lunsmann

Matthew Stewart Walker

Channarayapatna Shankar Lakshmi

Alexandra Artemis Papadakis

Lakshmi Channarayapatna Shankar

An inkjet printer includes a printhead having a plurality of ink chambers fed be an ink inlet, each ink chamber having a heater element for ejecting drops of ink from a nozzle aperture of each chamber; a plurality of pressure pulse diffusing structure positioned between the plurality of ink chambers fed by the ink inlet, the plurality of pressure pulse diffusing structures for retarding a propagation of pressure waves generated by each ink chamber to adjacent ink chambers; and a controller for receiving print data and generating drive pulses to energize the heater elements in accordance with the print data. The controller increases the drive pulse energy during the printhead lifetime such that the drive pulse energy is never less than that of a preceding drive pulse.

Printhead incorporating pressure pulse diffusing structures between ink chambers supplied by same ink inlet

An inkjet printer that has a printhead with an array of ejection devices for ejecting drops of liquid onto a media substrate. Each of the ejection devices having a chamber for holding liquid, a nozzle in fluid communication with the chamber and a heater positioned in the chamber for contact with the liquid such that resistive heating of the heater generates a vapor bubble that ejects a drop of the liquid through the nozzle. The printer also has a controller for receiving print data and generating drive pulses to energize the heaters in accordance with the print data. The controller increases the drive pulse energy during the printhead lifetime.

Printhead with increasing drive pulse to counter heater oxide growth

A MEMS vapor bubble generator with a chamber for holding liquid and a heater positioned in the chamber for heating the liquid above its bubble nucleation point to form a vapor bubble; wherein,

MEMS device with nanocrystalline heater

A MEMS vapor bubble generator with a chamber for holding liquid and a heater positioned in the chamber for heating the liquid above its bubble nucleation point to form a vapour bubble; wherein,

MEMS bubble generator

Growing community of inventors

Balmain, Australia

Frederik Jacobus Crous