Xerox Corporation

Timothy James Clark

Paul Michael Fromm

Robert Paul Herloski

Jeffrey John Bradway

Jess Robert Gentner

Jorge Mario Rodriguez

Jack Thomas Lestrange

Joseph M Ferrara, Jr

Douglas E Proctor

Robert P Loce

Beilei Xu

Howard A Mizes

Joseph C Sheflin

Roger Lee Triplett

Moritz Patrick Wagner

Robert J Kleckner

Bruce H Smith

Edward W Smith, Jr

John C Juhasz

David M Gurak

Martin J Pepe

Yiyi Guan

Thomas R Race

A three-dimensional (3D) object printer includes a surface treatment system configured to treat layers of an object being formed by the printer with a moving ultraviolet (UV) laser. The movement of the laser is controlled with a scanning mirror system and the spot size of the laser is reduced with a focus lens having a numerical aperture in a range of about 0.5 to about 1.0.

System and method for forming nano-structures on substrates to provide predetermined physical characteristics to the substrates

A printer that forms three-dimensional objects has two printheads, one of which is positioned to eject material drops in a direction that is parallel to a plane of a planar member on which an object is formed by the two printheads.

System and method for orthogonally arranging ejectors in a three dimensional object printer

A printer is configured with positioning members that hold components at predetermined positions to enable a controller operating at least one printhead in a three-dimensional object printer to form structure about the components. The positioning members can then be removed from the printed three-dimensional object to enable continued formation of the three-dimensional object.

Device for facilitating repetitive manufacture of parts having precisionally positioned components with a three-dimensional object printer

A method of removing support material attached to an object printed with build material by a three-dimensional object printer achieves reliable removal of the support material in a short time. The method includes moving a first dry absorbent media into a volume within a vessel having at least one wall and moving the object into the volume of the vessel. The vessel is agitated to enable the first dry absorbent media to dislodge and absorb the support material from the object, and the first dry absorbent media is moved from the volume of the vessel.

System and method for removing support material from a three-dimensional printed object

A method of manufacturing a three-dimensional object facilitates removal of the three-dimensional object from the platen on which the object was formed. The method includes rotating the platen from a horizontally level position to a position at an angle to the level position to enable gravity to urge the three-dimensional object away from the platen and inductively heating the platen to melt support material at the boundary of the object and the platen to release the three-dimensional object from the platen.

System and method for removing three-dimensional printed parts from a platen using inductive heating and gravity

Apparatuses include a conveyor moving in a processing direction, a print head positioned adjacent the conveyor, a light source positioned adjacent a first side of the conveyor, a movable mirror positioned adjacent a second side of the conveyor, that is across the conveyor from the first side of the conveyor, a fixed mirror positioned adjacent the first side of the conveyor (the fixed mirror is between the light source and the print head), and a light sensor position adjacent the second side of the conveyor. The light sensor is between the movable mirror and the print head. The light source outputs light to the movable mirror across the conveyor, the movable mirror directs the light back across the conveyor to the fixed mirror, and the fixed mirror directs the light again across the conveyor to the light sensor.

Sheet height sensor using movable and stationary mirrors

Methods and raster output scanner (ROS) systems are presented in which beam delay values are set for an array of ROS light sources based on wiper error and jitter error with column alignment achieved at an alignment location spaced from a center of scan (COS) location toward an end of scan location (EOS) along a fast scan range of operation of the ROS.

Raster output scanner with beam delay compensation to counteract jitter and wiper-induced banding

Raster Output Scanners and printing systems are presented along with methods for mitigating banding in printing systems, in which electronic banding compensation is employed using cross-process direction light source intensity banding correction profiles tailored to corresponding reflective facets of a rotating polygon.

Printing system, raster ouput scanner, and method with electronic banding compensation using facet-dependent smile correction

An apparatus () and method () that determines beam delays in a printing device is disclosed. The apparatus can include a photosensitive surface () and a raster output scanner () optically coupled to the photosensitive surface, an integrated scan detector () configured to detect the beams from the raster output scanner and configured to produce a signal based on the beams detected from the raster output scanner, and a beam calibration controller () coupled to the integrated scan detector. The beam calibration controller can be configured to determine at least one beam delay between the first optical emitter and the at least one second optical emitter based on signals from the integrated scan detector and can also be configured to delay operation between the first optical emitter and the at least one second optical emitter based on the at least one beam delay.

Apparatus and method for determining beam delays in a printing device

Adaptive correction techniques are disclosed that adaptively correct aberrations which may arise in systems such as laser printers, for example. For laser printers, calibration data processing results may be detected by a detector that is disposed to correspond physically to the recording medium so that characteristics such as position and intensity of a laser beam at the detector corresponds to that of a laser beam at the recording medium. In this way, aberrations in system performance may be adaptively corrected while the system is performing operational processes.

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Weedsport, NY, United States of America

Timothy James Clark