Memjet Technology Limited

Chia-An Lin

Samuel George Mallinson

Angus John North

Brian Robert Brown

Geordie McBain

Jognandan Prashar

Philip Palma

Benjamin Powell

Duncan McRae

Mile Jurevic

Sam Myers

Jeffrey Tsang

Jeff Tsang

Christopher Barton

Glenn Horrocks

Giedre Milinkeviciute

Aidan O'Mahony

Geordie Mcbain

Duncan Mcrae

Sam Mallinson

A method of multi-color printing in a single pass using a fixed pagewide array of monochrome inkjet printheads. The printheads are aligned with each other in a media feed direction and the method includes the steps of: feeding print media along the media feed direction past a first printhead positioned furthest upstream in the array, a third printhead downstream of the first printhead and a second printhead positioned furthest downstream in the array; printing a yellow ink onto the print media using the first printhead; printing a black ink onto the print media using the third printhead; and printing a cyan or magenta ink onto the print media using the second printhead.

Method of multi-color pagewide printing with optimized nozzle hydration

A multi-color printer has an array of monochrome fixed inkjet printheads aligned in a media feed direction. The printer includes: a first printhead positioned furthest upstream relative to the media feed direction; a second printhead positioned furthest downstream relative to the media feed direction; and a third printhead positioned between the first and second printheads. Each printhead is supplied with a respective ink from a multi-color ink set, the first printhead being supplied with a lowest luminance ink of the ink set and the third printhead being supplied with a highest luminance ink of the ink set.

Multi-color printer with ink plumbing for optimized nozzle hydration

A method of printing from a fixed inkjet printhead having a plurality of ink planes. The method includes the steps of: feeding a print medium past the printhead in a media feed direction, the media feed direction defining relative upstream and downstream sides of the printhead; printing an image onto the print medium, the image being defined by image data; and printing a keep-wet pattern onto the print medium from each ink plane of the printhead, the keep-wet pattern being defined by a plurality of dots printed at a frequency sufficient to maintain hydration of each nozzle in the printhead. A first keep-wet pattern from a first ink plane is printed at a higher frequency than a second keep-wet pattern from a second ink plane, the first ink plane being furthest upstream in the printhead.

Method of inkjet printing and maintaining nozzle hydration

An inkjet nozzle device includes: a firing chamber having a nozzle aperture; and a heating element for generating gas bubbles in the firing chamber so as to eject ink through the nozzle aperture. A non-heating stabilizing bar extends across the nozzle aperture.

Inkjet nozzle device configured for minimizing satellite droplets

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North Ryde, Australia

Chia-An Lin