Zamtec Limited

Memjet Technology Limited

Hewlett-packard Development Company, L.p.

Mernjet Technology Limited

Neil Doherty

David Burney

Patrick Kirk

Kenneth Andrew Regas

Bill Cressman

Robert Rosati

David B Petch

Jason Dewey

Scott Dennis

Loren Hunt

Andy Bound

Oksana Buyda

Jim Sykora

Locson Tonthat

Andrew Buyda

Ron Zech

Jim Trinchera

Ben Jones

Joo Beng Koh

Jonathan Day Lucas

Steve Inderieden

Lai Say Poh

Gilbert Magsakay

William Stone Cressman

Jaren D Marler

Paul C Ray

John W Godden

Myron A Bezenek

Thomas J Tarnacki

Robert J Fogarty

Mun Yew Lee

Robert J Manders

A printing system includes: an ink supply; a feed line coupled to the ink supply; a return line coupled to the ink supply; and a plurality of printhead modules each having an inlet port fluidically coupled to the feed line and an outlet port fluidically coupled to the return line; and bypass lines fluidically coupling the feed line to the return line. A bypass line is open for both priming and printing operations.

Printing system having multiple printheads and bypass lines

A printing system includes: an ink supply; a feed line coupled to the ink supply; a return line coupled to the ink supply; and a plurality of printhead modules each having an inlet port fluidically coupled to the feed line and an outlet port fluidically coupled to the return line. Each print module has a bypass line fluidically coupling the feed line to the return line. The bypass line is open for both priming and printing operations.

A printer includes a modular vacuum belt assembly for moving print media in a media feed direction along a media path. The modular vacuum belt assembly includes a plurality of moving belt modules interconnected along a width of the media path. Neighboring moving belt modules are interconnected via a connecting fixed vacuum plenum.

Modular vacuum belt assembly with interconnecting moving belt modules

A printer includes a vacuum belt assembly for moving print media in a media feed direction along a media path. The vacuum belt assembly includes: a plurality of endless belts tensioned between first and second pulleys, the first and second pulleys having respective first and second axes of rotation perpendicular with the media feed direction; and a vacuum chamber for drawing print media onto an upper surface of the belts. Each belt is independently laterally slidable along one of the first and second axes.

Printer with vacuum belt assembly having independently laterally movable belts

A method of transporting a print medium in a printer. The includes suctioning the print medium onto an upper surface of a plurality of moving belts. The print medium experiences greater suction at an upstream side of the belts relative to a downstream side of the belts, the upstream and downstream sides being defined relative to a media feed direction.

Method of transporting print medium in a printer

A printing system includes: a fixed printhead assembly having an array of printheads and vacuum platen assembly. The vacuum platen assembly includes a fixed vacuum platen and a plurality of rotatable service modules embedded in the fixed vacuum platen. Each service module is positioned opposite a respective printhead, and each service module comprises a respective vacuum platen module.

Printer having modular vacuum belt assembly

Printer having rotatable service modules embedded in fixed vacuum platen

A printer includes a vacuum belt assembly for moving print media in a media feed direction along a media path. The vacuum belt assembly includes a plurality of moving belt modules, each moving belt module including: a body having an internal chamber defining at least part of a vacuum chamber; a first pulley positioned at a first end of the body; a second pulley positioned at a second end of the body; and a set of spaced apart endless belts tensioned between the first and second pulleys. The belts are non-apertured and the vacuum chamber communicates with an interstitial gap defined between each adjacent pair of belts in the set so as to draw print media onto an upper surface of the moving belt module.

Printer with vacuum belt assembly having non-apertured belts

A printer includes a vacuum belt assembly for moving print media in a media feed direction along a media path. The vacuum belt assembly includes: a plurality of spaced apart endless belts tensioned between first and second pulleys; a vacuum chamber for drawing print media onto an upper surface of the belts; and a plurality of vacuum antechambers communicating with the vacuum chamber, each vacuum antechamber having a perimeter opening for suction engagement with print media, a length dimension of each perimeter opening extending longitudinally in the media feed direction. A first perimeter opening of a first vacuum antechamber positioned towards an upstream side of the vacuum belt assembly is shorter than a second perimeter opening of a second vacuum antechamber positioned towards a downstream side of the vacuum belt assembly. The upstream and downstream sides are defined with respect to the media feed direction.

Printer with vacuum belt assembly having controlled suction

A printing system that has an ink supply, a feed line coupled to the ink supply, a return line coupled to the ink supply, a plurality of printheads each fluidically coupled to the feed and the return lines via separate couplings. Each of the printheads receives ink from both the feed and the return lines.

Printing system with multiple printheads each supplied by multiple conduits

A printer includes: a fixed printhead assembly defining a print zone; a drive roller for feeding media along a media path and into the print zone, the drive roller being positioned upstream of the print zone; a fixed vacuum platen for receiving the media from the drive roller, the fixed vacuum platen being positioned in the print zone opposite the fixed printhead assembly; and a moving belt assembly positioned downstream of the print zone for receiving the media from the fixed vacuum platen.

Printer having fixed vacuum platen and moving belt assembly

A wide format printer that has a drive roller configured to engage and push media into a print zone and a movable media engagement assembly configured to engage one side of the media and pull the media while the drive roller remains engaged with the media wherein the print zone is more than 432 mm (17 inches) wide.

Wide format printer with input roller and movable media engagement output for simultaneously engaging media

A printing system that has a drive roller for feeding different sizes of media along a media path, an inkjet printhead assembly for printing the media and an ink aerosol collection system for removing ink aerosol from areas adjacent the media path. The ink aerosol collection system is configured to remove aerosol at a greater rate in response to an increase in the media size.

Printing system with adjustable aerosol collection

An inkjet printer that has a print zone, a media path extending through the print zone along a paper axis, a printhead carriage with a plurality of printhead mounting sites for mounting a plurality of printhead modules adjacent the print zone such that the printhead modules collectively span the media path and a plurality of interfaces for supplying ink to, and receiving ink from each of the printhead modules respectively.

Inkjet printer with printhead modules having individual ink interfaces

A wide format printer that has an inkjet printhead assembly for printing media fed along a media path that is more than 432 mm (17 inches) wide, and an aerosol collection system for collecting ink aerosol generated by the printhead assembly. The printhead assembly is positioned on a first side of the media path and the aerosol collection system has a first aerosol collection opening positioned on the first side of the media path and a second aerosol collection opening positioned on a second side of the media path.

Growing community of inventors

San Diego, CA, United States of America

Neil Doherty