Hewlett-packard Development Company, L.p.

Hewlett-packard Company

3d Systems, Inc.

Michael W Munro

Richard Alan Kelley

Robert M Yraceburu

Bruce G Johnson

Antoni S Murcia

Stephen G Brown

Michael K Bowen

Michael S Millman

Adam J Livingston

Matias Negatu

Dean A Gaylor

Jacinto Berrios

Richard Olson

Winthrop D Childers

David Sabo

Raul Perez

Cesar Fernandez Espasa

David L Berardelli

Antonio Gomez

Kurt E Thiessen

Angela S Chen

Richard E Olson

Mark McGarry

Bruce R Johnson

Paul M O'Brien

John Michael Harris

Daniel Alonzo

Ilan A Sabar

Rafael Ulacia

Kevin J Hasseler

Rafael Ulacia Portoles

A three-dimensional (3D) printing system for manufacturing a 3D article includes a resin vessel, a build plate, a plate support, a hook subsystem, an elevator subsystem, an imaging subsystem, and a controller. The build plate has an upper surface and extends from a proximal end to a distal end. The hook subsystem includes a hook. The controller is configured to: (a) Operate the elevator subsystem and the imaging subsystem to fabricate the 3D article. (b) Operate the elevator subsystem to raise the 3D article above photocurable resin in the resin vessel. (c) Operate the hook subsystem to configure the hook to be engaged with the proximal end of the build plate. (d) Operate the elevator subsystem to impart a vertical separation distance between the proximal and distal ends of the build plate. The vertical separation distance defines an angular tilt of the 3D article to facilitate draining of residual photocurable.

High capacity three-dimensional printer with drain system for heavy articles

A three dimensional printing system includes a print engine, a storage system, and a controller. The controller is configured to (1) receive a build order defining a plurality of three dimensional articles to be manufactured, (2) allocate partitions for receiving the plurality of the three dimensional articles within the storage system, (3) operate the print engine to fabricate the three dimensional articles, and (4) transfer the three dimensional articles to the partitions as they are built.

Automated three dimensional printing system

A three dimensional printing system includes a vertical support, a support plate, a resin vessel, and an interface mechanism. The support plate extends away from the vertical support along a first lateral axis from a proximal end to a distal end. The resin vessel is disposed above the support plate and includes a pair of latch features disposed at opposing ends of the resin vessel relative to a second lateral axis. The interface mechanism includes a pair of latches and a movable plate. The pair of latches are disposed adjacently to the opposed ends of the resin vessel. The movable plate is configured to engage the pair of latches with a single downward movement of the movable plate. In response to the engagement by the movable plate, the latches engage the latch features of the resin vessel.

Latching system for three dimensional print engine

A rotary wiper assembly for a fluid-ejection printhead that has fluid-ejection nozzles includes one or more wipers and a rotatable shaft to which the wipers are at least indirectly attached. The rotatable shaft is to rotate the wipers to a static wiping position. While the wipers are stationary in the static wiping position, the fluid-ejection printhead is to move back and forth in relation to the wipers while the wipers are not to move, to cause the wipers to come into contact with the fluid-ejection nozzles to wipe material from the fluid-ejection nozzles.

Rotary wiper assembly for fluid-ejection printhead

A method and apparatus service a print head by translating a first web support relative to a second web support to adjust a length of a web extending between the first support and the second support.

Translatable web support

Imaging head

A printer having a media transport mechanism defining a media path. The path extends from a media supply past a print engine. A media alignment element moves between an extended position intersecting the path between the supply and the engine, and a retracted position away from the path. The printer may include a pair of rollers between the supply and the alignment element and encompassing the path, so that the sheet may be gripped by the rollers at a position adjacent the alignment to preserve the alignment by the element. The rollers may retract the sheet from the alignment element, which may move aside from the media path, so that the media may be fed toward a print engine.

Printer media alignment apparatus and method

An apparatus for transporting print medium through a printzone of a printing device. The apparatus including a print media movement mechanism configured to advance a first portion of a print medium through the printzone and a reciprocally translating vacuum platen downstream of the print media movement mechanism. The vacuum platen receives the print medium and conveys a remaining portion of the print medium through the printzone so that a printing mechanism can print at a bottom margin of the print medium.

Apparatus and method for transporting print media through a printzone of a printing device

A printing apparatus with an index-feeding printing system having a first media path, a continuous feed finishing apparatus having a second media path, and a media buffer device having a third media path connecting between the first media path and the second media path. The third path may have a first portion communicating with the printing system, and a second portion communicating with the finishing apparatus, with the first and second portions merging with each other to form a common path portion terminating at a common path dead end, such that a media sheet from the printing system stops at the dead end and reverses direction for feeding to the finishing apparatus.

Printer media transport apparatus and method

A print media deskew apparatus includes a print media support having a first surface defining a plane for a print media transport path and a second surface parallel to the print media transport path and two apertures in the first surface aligned in the print media transport path. A first set of selectively driven spheres in the print media transport path and a second set of selectively driven spheres in the print media transport path downstream from the first impart a paper path force and a lateral driving force on a media sheet such that the sheet is driven laterally to the print media transport path until edge contact with the second surface removes any skew from the sheet.

Deskew of print media

Inkjet printer with an auxiliary sheet feeder

Inkjet printer

Growing community of inventors

Vancouver, WA, United States of America

Michael W Munro