Xerox Corporation

Electronics for Imaging Gmbh

Williams, Leon

Olson, Thor

Leon C Williams

Jeng-nan Shiau

David Jon Metcalfe

Stuart Alan Schweid

Thor A Olson

Robert P Loce

Raymond J Clark

Ying-wei Lin

Yeqing Zhang

Michael Branciforte

Francis Kapo Tse

Robert F Buchheit

Terri A Clingerman

Thomas R Beikirch

James C Traino

Patrick H Wood

Bing R Hsieh

Douglas N Curry

Fritz F Ebner

Clara Cuciurean-Zapan

Jonathan Marsden

Roger Lee Triplett

Ned J Seachman

Ghilad Dziesietnik

Kwok-Leung Yip

David G May

Steven A Billow

Michael Alan Peters

Isaak Rivshin

Anthony F Calarco

Elizabeth A Richenderfer

Lawrence E Walther

Donald R Lehmbeck

J Terrence Flynn

Mark McCuen

Theodore A Olson

Yung Ran Choi

Techniques for interactively determining/visualizing the color content of a source image and how the corresponding image data is mapped to device colors are described herein. For example, the color content of a digital image can be converted between different color spaces to identify gamut limitations of an output device (e.g., a printing assembly), discover color(s) that cannot be accurately reproduced, etc. Color space conversions enable the transformation of the color content of the digital image from device-specific colorants to a device-independent representation (and vice versa). In some embodiments, these transformations are facilitated using lookup tables that are implemented in graphical processing unit-resident memory.

Interactive three-dimensional (3D) color histograms

Various variable gloss reduction techniques are disclosed. In one embodiment, a gloss reduction technique is disclosed using a textured roller and a wiper impregnated with fuser oil to create a differential gloss pattern that reduces the gloss of an image printed on a substrate. In one embodiment, a gloss reduction technique is disclosed using a combination of heat and pressure to create a differential gloss pattern that reduces the gloss in specific regions of an image printed on a substrate. In one embodiment, a gloss reduction technique is disclosed using a differential gloss pattern to generate a security mark on a printed image to prevent against copying or fraudulent misrepresentation of the image.

Method and apparatus for variable gloss reduction

When a job does not exactly match the purpose of a printing profile but would benefit from some of the characteristics of a different printing profile, dynamically making the tradeoffs between the printing profiles is desirable. For example, a high-ink, large gamut profile might not be needed for a particular job, but an ink-saving profile would be excessively grainy. An intermediate profile would be recommended. Alternatively, the ink-saving profile can be adequate for everything except the skin tones in the print. Presented here are systems and methods to create a blended representation that could adopt the high-ink rules for a portion of the image, but ink-saving rules elsewhere. For example, the high-ink rules can be applied to the skin colors, but ink-saving rules can be applied in other parts of the image.

Visual ink savings

Large format print jobs are previsualized in context. A print job source image is received. At least one 3D environment is received, including one or more designated insertion sites to receive the print job source image. One or more images or videos are produced, visualizing the 3D environment with the print job source image integrated into one or more of the designated insertion sites.

Previsualization for large format print jobs

The smoothness of a toner layer is reduced and thus the gloss of a resulting print is reduced. A single toner, the original high gloss version, is enabled to print all images. A finishing option is provided which, through application of a combination of heat and pressure with a textured roller, reduces the specular gloss of the toner surface by imprinting a high frequency texture onto the smooth toner layer. By adjusting the temperature/pressure of the textured roller, the effective gloss of the press can be adjusted through software as desired.

Compensation algorithms are applied to hide failed nozzles or, at least, reduce the objectionable effect of such nozzles in a printed image. Once a failed nozzle or under-performing nozzle is detected in a single-pass printing system, it is shut-off and the image data that was intended to be printed by this nozzle is redistributed to its neighboring nozzles. Embodiments of the invention use of a 1-D look-up table and stochastically distribute the duty cycle to each neighboring nozzle. In this way, failed nozzles are effectively hidden in the final print.

Method and apparatus for single-pass failed nozzle compensation

A proxy software service determines all I/O devices independent of subnet location, on a network; provides a network interface on a wireless subnet that can receive and respond to requests; responds to such requests for each I/O device so identified so that the I/O device is available to the wireless device user for device selection; transfers and translates, if necessary, the IPP stream received from the wireless device to the network address of the I/O device so that the I/O device simulates a compliant I/O device; and transfers and translates, if necessary, all necessary status and command messages from the present protocol to the protocol supported by a legacy I/O device.

Protocol for interaction between wireless devices and other devices

Limitations of conventional dimensional printing techniques are addressed to provide features and flexibility not presently available, including extracting images selectively from a Postscript&#xae; or PDF file and thus enable texturing of individual images within a page; constructing the texture automatically directly from the image using image processing techniques; visualizing the texture to be applied to an image via construction of a bump map or normal map in openGL and DirectX&#xae;; adjusting texturing parameters via visual feedback in openGL and DirectX&#xae;; and inserting a clear texture back into a PDF file for printing automatically.

Method and apparatus for creating a dimensional layer for an image file

Image processing is used to simulate the appearance of an embossed print. The application of clear dry ink or spot varnish to the print generates the tactile feel of an embossed print. Embodiments thus provide a technique that simulates the effect of an embossed print without the need for plates or specialized equipment, other than a printer that is adapted to apply clear dry ink or spot varnish.

Simulated embossing and imprinting

An embodiment implements a methodology for printing non-saturated text and lines in a way that removes the jagged edge problem. An embodiment uses a combination of two screens, e.g. AM screening and applying pure color. For example, according to the embodiment, the closer to the edge from the interior of text or lines, the less amplitude modulation half toning is applied and the more actual color or contone is applied. A particular algorithm for determining and using a blending parameter is provided.

Method and apparatus for high quality printing of non-saturated colored text and lines

Techniques are provided that allow the user to view on his or her mobile device the body of an email or other items from a message service as well as each of the attachments as thumbnails or individual images. As well, techniques allow the user to view particular attributes of each item, e.g. the number of pages and the page size of a particular attachment. Techniques are provided such that the user may view such thumbnails and/or attributes on a unique URL generated as a result of the generated email. Thus, by such techniques, the user is provided with a platform for mobile devices that allows intuitive selection of what should be or is desired to be printed.

Mobile print email reply with thumbnails

Growing community of inventors

Walworth, NY, United States of America

Leon C Williams