Silverbrook Research Pty Ltd

Zamtec Limited

Alexander Grant

Kia Silverbrook

Damon Donald Ridley

Simon Fielder

Adrian Peter Bisson

Iain Blake

Steven Carter

Roger Michael Davey

A method of minimizing kogation of a heater element in a thermal inkjet printhead. The method includes the steps of: (i) supplying an inkjet ink to a nozzle chamber of the printhead; and (ii) repeatedly actuating a heater element in the nozzle chamber so as to heat a portion of the ink to a temperature sufficient to form a bubble therein, thereby causing droplets of ink to be ejected from a nozzle opening associated with the nozzle chamber. The ink includes a styrene-acrylic copolymer having a glass transition temperature (Tg) in the range of 5 to 30&#xb0; C. and acid value in the range of 100 180 mgKOH/g, said styrene-acrylic copolymer minimizes kogation of the heater element.

Method of minimizing kogation in thermal inkjet printheads

A method of ejecting ink from a thermal inkjet printhead. The method includes the steps of: (i) supplying an ink to at least one nozzle chamber of the printhead; and (ii) actuating a heater element in the nozzle chamber and heating the ink to a temperature sufficient to form a bubble therein, thereby causing the ink to be ejected from a nozzle opening associated with the nozzle chamber. The ink is a solvent-based ink composition including: (a) 20-80 wt. % of a compound of formula (A); 

Method of ejecting solvent-based ink composition comprising pyrrolidinone solvent

A solvent-based ink composition for a thermal inkjet printhead. The ink composition comprises: 

Solvent-based ink composition for thermal inkjets comprising acetate solvent

Solvent-based ink composition for thermal inkjets comprising pyrrolidinone solvent

A solvent-based ink composition for a thermal inkjet printhead comprises a surface-modified pigment. The ink composition comprises: 

Growing community of inventors

Balmain, Australia

Alexander Grant