Abstract: A fluorescence-based correlation mark is included in a printed document by encoding the correlation mark as phase shifts in the yellow halftone image only of a printed color document. The correlation mark transparency key is likewise printed using only yellow colorant or can be printed in black or with another colorant or mixture of colorants that will appear dark or black when subjected to UV illumination. UV illumination of the document without use of the transparency key, and use of the transparency key without UV illumination of the document are insufficient to reveal the fluorescence-based correlation mark. UV illumination of the document while the transparency key is overlaid with the document will allow the correlation mark to be perceived.
Type:
Grant
Filed:
November 9, 2007
Date of Patent:
August 30, 2011
Assignee:
Xerox Corporation
Inventors:
Raja Bala, Shen-Ge Wang, Reiner Eschbach
Abstract: A fuser component useful in electrostatographic machines is provided, having a substrate, and thereover a coating composition comprising a haloelastomer, such as, for example, a fluoroelastomer, and a deflocculating agent. A fuser component comprising a deflocculating agent exhibits improved properties including, but not limited to, increased gloss and a smoother coating surface with a relatively high adhesive strength. The use of a deflocculating agent also reduces or eliminates the barium sulfate defect.
Type:
Grant
Filed:
May 23, 2005
Date of Patent:
August 30, 2011
Assignee:
Xerox Corporation
Inventors:
Christopher David Blair, Ugur Sener, Robert N. Finsterwalder, Joy L. Longhenry
Abstract: According to the invention, a method is provided for calculating a Fractional Area Coverage (FAC) for determining the density of toner to evaluate the effectiveness of a xerographic printing process. The amount of diffuse light being reflected at the specular angle is determined during densitometer calibration and subsequent specular sensor readings are corrected by subtracting a fraction of the diffuse sensor signal from the specular sensor signal. Also provided is a computer readable media having stored computer executable instructions, wherein the computer executable instructions, when executed by a computer, directs a computer to perform a method for calculating a FAC for determining the density of toner to evaluate the effectiveness of a xerographic printing process.
Abstract: Embodiments of the present invention describe a collaborative framework for mining of surveillance videos to detect abnormal events, which introduces a two-stage training process to alleviate the high false alarm problem. In the first stage, unsupervised clustering is performed on the segments of the video streams and a set of abnormal events are combined with user feedback to generate a clean training set. In the second stage, the clean training set is used to train a more precise model for the analysis of normal events and the motion detection results from multiple cameras can be cross validated and combined. This description is not intended to be a complete description of, or limit the scope of, the invention. Other features, aspects, and objects of the invention can be obtained from a review of the specification, the figures, and the claims.
Abstract: A replaceable unit includes a feeding roller that feeds a sheet from a sheet accommodation portion that accommodates the sheet; a conveyance roller that conveys the sheet fed by the feeding roller downstream; a first frame body that supports the feeding roller and the conveyance roller so as to be rotatable; and a second frame body that supports the first frame body so as to be movable and is removably mounted at a position at which the feeding roller can touch against the sheet accommodated at the sheet accommodation portion.
Abstract: A colorant comprising an aggregate of a molecule having a squarylium skeleton and having a maximum absorption wavelength at about 500 nm to about 600 nm in a molecular dispersion state.
Abstract: A method of processing print jobs that improves the ability of users to identify their print lobs at the local user interface of an image formation device is provided. The method includes receiving image data for a print job at a computer and converting the image data to page description language code at the computer. The page description language code for the image data includes a job name string having an application name portion and a filename portion. The method further includes comparing the application name portion of the job name string to a list of application names in a database; removing the application name portion from the job name string where the application name portion is found in the database; and then sending the page description language code for the image data to an image formation device.
Type:
Grant
Filed:
December 1, 2005
Date of Patent:
August 30, 2011
Assignee:
Xerox Corporation
Inventors:
Tomas Byström, Thomas Chase, Dean Lynn, Satyan Vadher, Andy Jordan
Abstract: Systems and methods provide increased accuracy in recalibrating the tone reproduction curve (TRC) for a photoelectric image sensor that senses density values. The sensor outputs sensed density values for tone patches. A recalibrated TRC is calculated from the original TRC, the known densities of the tone patches, and the sensed density values of the tone patches.
Abstract: A method and apparatus for metering release agent on an imaging member includes applying a release agent to a rotating imaging member at an application location and then controlling a thickness of the release agent on the imaging member with a rotating metering roll. In at least one embodiment, the method for metering a release agent includes rotating the metering roll as a counter-roll to an imaging drum such that the metering roll moves in an opposite direction from the imaging drum at a nip between the metering roll and the imaging drum. The metering roll may include an elastomer provided over the substantial portion of its outer surface which contacts the imaging drum. The metering roll may also be forcibly biased against the imaging drum. At least one wiper blade may be provided in contact with the metering roll to wipe excess release agent from the metering roll.
Type:
Grant
Filed:
March 10, 2009
Date of Patent:
August 30, 2011
Assignee:
Xerox Corporation
Inventors:
Gerald A. Domoto, Jason O'Neil, Paul McConville
Abstract: In accordance with the invention, there are field emission light emitting devices and methods of making them. The field emission light emitting device can include a plurality of spacers, each connecting a substantially transparent substrate to a backing substrate. The device can also include a plurality of pixels, wherein each of the plurality of pixels can include one or more first electrodes disposed over the substantially transparent substrate, a light emitting layer disposed over each of the one or more first electrodes, and one or more second electrodes disposed over the backing substrate, wherein the one or more second electrodes and the one or more first electrode are disposed at a predetermined gap in a low pressure region. Each of the plurality of pixels can further include one or more nanocylinder electron emitter arrays disposed over each of the one or more second electrodes.
Abstract: A method for making an electromechanical device including forming an electromechanical transducer that includes a deposited metallic diaphragm, and attaching the electromechanical transducer to a fluid channel substructure.
Abstract: An information management apparatus comprises: an assignment unit that uniquely assigns a region on an imaginary plane for a page of a document that is output by an image forming apparatus; a receiving unit that receives a request for assignment by the assignment unit, and identification information that identifies the document; a notification unit that notifies the image forming apparatus of coordinate values in a region assigned by the assignment unit, as coordinate values expressed on the document image of the page using a predetermined code; a storage unit that stores, for each region assigned by the assignment unit, region information that indicates the region and the identification information, the region information and the identification information being stored associated with each other; and a search unit that, when a coordinate value is input, searches for the identification information associated with the region that includes the coordinate value in the storage unit.
Abstract: A system for reading a coded marker of an ink stick has been developed. The system includes an optical detector that detects light reflected from different areas of the generates signals in response to detecting light having at least two signal strengths that is reflected from different areas of the coded marker. A controller processes the signals from the optical detector to identify a code word encoded into the coded marker of the ink stick.
Abstract: An image processing device includes an acceptance section, an information acquisition section, a generating section, and an output section. The acceptance section accepts image data to be processed. The information acquisition section acquires plural pieces of information relevant to copy-restriction images and corresponding to plural kinds of copying devices configured to detect corresponding copy-restriction images. A target image is prevented from copying when a given piece of the information corresponding to a given kind of the copying devices and embedded in the target image is detected by the given kind of the copying devices. The generating section generates a formation-target image by embedding, in the image data, the copy-restriction images corresponding to the plural piece of information acquired by the information acquisition section. The output section outputs the formation-target image generated by the generating section.
Abstract: An image-forming apparatus includes: an image-forming unit that includes an image holder having a rotating shaft, and forms an image on the image holder; a bearing made of a conductive sintered compact, that contacts and supports the rotating shaft so that the rotating shaft is able to rotate; and a metallic supporting portion that is electrically grounded, and has a cut that contacts and supports the bearing.
Abstract: The present disclosure provides toners having a tunable gloss level, electrophotographic apparatuses for using such toners as well as processes for making such toners.
Type:
Application
Filed:
February 22, 2010
Publication date:
August 25, 2011
Applicant:
XEROX CORPORATION
Inventors:
Edward Graham Zwartz, T. Brian McAneney, Eric Rotberg, Richard P.N. Veregin, Valerie M. Farrugia, Jordan H. Wosnick
Abstract: An image processing apparatus includes an image acquiring unit, a partial information detecting unit and an embedding unit. The image acquiring unit acquires an image in which first additional information is embedded so that pieces of first partial information obtained by dividing the first additional information are coded and embedded in respective unit areas obtained by dividing the image. The partial information detecting unit detects the pieces of first partial information, which are embedded in the respective unit areas of the image acquired by the image acquiring unit. The embedding unit codes and embeds, in the respective unit areas, pieces of second partial information obtained by dividing second additional information which is different from the first additional information so that a sum of differences between corresponding pairs of (i) the pieces of detected first partial information and (ii) the newly embedded pieces of second partial information become minimum.
Abstract: A recording head including: a non-electrically conductive support member; a base board provided above the support member, the base board being provided with light emitting elements for forming an image on a recording medium, a drive section for causing the light emitting elements to emit light, a first earth connection member provided at an end portion of the base board, and a second earth connection member provided at a location of a connection member, having one end connected to a control section for controlling the drive section and another end connected to drive section; a conducting member provided at a predetermined place relative to the support member and connected to an earth; a first conduction section conducting between the conducting member and the first earth connection member; and a second conduction section conducting between the conducting member and the second earth connection member.
Abstract: An ink umbilical provides different colors of heated ink to multiple print heads in an integrated structure. The ink umbilical includes a first plurality of ink carrying conduits mounted on one side of a heater and a second plurality of conduits mounted on a second side of the heater opposite the first side of the heater. The heater is operated to keep the ink in the conduits on each of the heater in a predetermined temperature range.
Type:
Application
Filed:
May 2, 2011
Publication date:
August 25, 2011
Applicant:
XEROX CORPORATION
Inventors:
Chad David Freitag, Roger G. Leighton, Ivan A. McCracken, Antonio St. Clair Lloyd Williams