Patents Assigned to Xerox
  • Patent number: 7145697
    Abstract: Apparatus and methods that adjust image data for show-through image information of an image on a front side of an image bearing substrate having image data on a back side and on an adjacent side of a backing substrate, e.g., the pages of a bound volume. Image data for a front side image, a back side image and an adjacent side image is obtained from an optical sensor that senses light reflected from the image bearing substrate. The image data is stored in a memory and is used to determine scanned density data and approximate absorbency data for the respective sides of the substrates. Show-through compensated density data for the front side image is computed by filtering the absorbency data for the back and adjacent side with a filter characteristic of the show-through characteristics of the image bearing substrate and subtracting this filtered absorbency data from the front side scanned density data.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: December 5, 2006
    Assignee: Xerox Corporation
    Inventors: Gaurav Sharma, Keith T. Knox
  • Patent number: 7146604
    Abstract: Programming abstractions with at least one expression are composed to a single abstraction using a composition operator. Expressions from the abstractions are unfolded by removing the prefix of each abstraction and substituting formal parameter names in each expression with a common parameter name to define open variables. The unfolded expressions are transformed to a reduced expression using a composition pattern that tunes semantics of the composition operators. The reduced expression is nested in the single abstraction by: appending a selected prefix of the composed abstraction to the reduced expression, binding the open variables of the reduced expression to the formal parameter of the selected prefix, and computing the type of the formal parameter of the selected prefix.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: December 5, 2006
    Assignee: Xerox Corporation
    Inventor: Jean-Yves Vion-Dury
  • Patent number: 7144100
    Abstract: A print head reservoir includes a plate having first and second sides and a passage extending through said plate. The plate defines an angled channel in communication with the passage and an outlet region.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: December 5, 2006
    Assignee: Xerox Corporation
    Inventors: Rodney B. Hill, David P. Platt
  • Patent number: 7145674
    Abstract: A comment is compared to path mappings within a network for identifying a potential pathname of output data for an object within the publication data. If the output data is does not exist at the potential pathname, the comment is compared to search paths within the network to identify the potential pathname of the output data within the publication data. The potential pathname is substituted for the comment in the publication data. The publication data is prescanned. Optionally, the output data is gathered at a local disk. The publication data is output to an output medium via an output device.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: December 5, 2006
    Assignee: Xerox Corporation
    Inventor: Katherine E. Hayes
  • Patent number: 7146043
    Abstract: A method for smooth trapping of thin graphical objects, wherein a thin graphical object has a width dimension which is substantially less than the object's length dimension, includes receiving from a trap generator the location of a trap pixel that should be changed in color; determining the width of the object containing the trap pixel; comparing the width of the object with a trap threshold width; if the size of the object is less than the trap threshold width, reducing the width of the trap region according to a predetermined relationship; and applying a trap correction to the trap pixel according to the reduced trap width. The predetermined relationship may be a linear relationship which reduces the trap width monotonically for object widths less than the trap threshold width. The method may be applied to small objects and small font text objects.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: December 5, 2006
    Assignee: Xerox Corporation
    Inventor: Jon S. McElvain
  • Patent number: 7144097
    Abstract: Provided is an inkjet recording device that has a conveying unit for conveying a recording medium, plural recording head groups each structured by plural unit heads disposed along the conveying direction, and an ink receiving unit for receiving ink discharged from the unit heads. The recording head groups, correspond respectively to plural individual recording regions which are sectioned off in the recording medium transverse direction which is orthogonal to the conveying direction, are disposed so as to be at respectively different positions at adjacent individual recording regions along the conveying direction. The ink receiving unit is disposed so as to face ink drop discharging surfaces of the unit heads. The conveying unit is plural conveying belts disposed at positions evading trajectories of the ink drops from the unit heads as seen in a direction of a line normal to the recording medium so as to be divided in the conveying direction.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: December 5, 2006
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Ryo Ando, Hiroaki Satoh, Satoru Nishikawa, Kozo Tagawa, Takeshi Kato, Tsutomu Udaka, Toshiyuki Kazama, Yoshiki Matsuzaki, Osamu Goto, Susumu Kibayashi, Yoshihiko Mitamura
  • Patent number: 7146112
    Abstract: A replaceable unit monitor reader system includes a host processor and a coupler board. The coupler board has a detection circuitry that provides an auto-detect, auto-initiate and/or auto-select ability. After receiving command from the host processor, the coupler board enables communication with a CRUM without requiring a further command from the host processor.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: December 5, 2006
    Assignee: Xerox Corporation
    Inventors: William H. Phipps, Scott J. Bell, Alberto Rodriguez, Heiko Rommelmann, Ronald P. Boucher
  • Publication number: 20060270754
    Abstract: A wax-tethered photoinitiator that is a photoinitiator compound including a wax chain therein, wherein the photoinitiator compound is activated by ultraviolet radiation, and method of making the same is described. The wax-tethered photoinitiator may be used in a curable wax composition for incorporation into a toner. The wax-tethered photoinitiator exhibits an affinity for the wax phase, thereby insuring its presence in the wax for the initiation of curing thereof.
    Type: Application
    Filed: May 25, 2005
    Publication date: November 30, 2006
    Applicant: XEROX CORPORATION
    Inventors: Jennifer Belelie, Peter Odell, Daryl Vanbesien, Jessica Jordao
  • Publication number: 20060269142
    Abstract: Methods and apparatus may include assigning a subtype, from a sub-class of image types, to a pixel, the subtype indicating membership in a window and also indicating a more specialized sub-class of image types. Membership in the sub-class may specify downstream processing specific to the subtype and compatible with the downstream processing of other subtypes within the sub-class. Such methods and apparatus may allow individual pixels within a window to receive specialized downstream processing according to their subtype while preventing objectionable artifacts. Such artifacts may result from classifying neighboring pixels as image types calling for mutually incompatible downstream processing.
    Type: Application
    Filed: May 31, 2005
    Publication date: November 30, 2006
    Applicant: Xerox Corporation
    Inventors: Stuart Schweid, Jeng-Nan Shiau
  • Publication number: 20060269662
    Abstract: A method includes pre-milling a pigment by dry ball milling the pigment with crushed CO2(s), reducing the size of particles of the pigment by milling the pigment with glass beads, measuring a size of the particles of the pigment, determining whether that size of the particles is acceptable and coating the imaging member with the pigment if it is determined that the size of the particles is acceptable. A system includes a mill, a measuring device, a coating device and a controller that controls the mill to dry ball mill a pigment with crushed CO2, and then controls the mill to reduce the size of the pigment by milling the pigment with glass beads. The controller controls the measuring device to measure a size of the particles of the pigment to determine whether the size of the particles is acceptable. The imaging member is then coated with the solution.
    Type: Application
    Filed: May 27, 2005
    Publication date: November 30, 2006
    Applicant: XEROX CORPORATION
    Inventors: John Chambers, Francisco Lopez, Liang-Bih Lin
  • Publication number: 20060269858
    Abstract: Toner compositions comprising toner particles including additive particles upon an external surface of the toner particles, wherein the additive particles include crosslinked styrene containing polymer particles, exhibit reduced sensitivity to relative humidity. The crosslinked styrene containing polymer particles preferably have an average particle size of from about 30 nm to about 300 nm, and may comprise styrene homopolymer particles, styrene copolymer particles or mixtures thereof. A process of reducing the relative humidity sensitivity of toner using such external surface additive is also described.
    Type: Application
    Filed: May 31, 2005
    Publication date: November 30, 2006
    Applicant: XEROX CORPORATION
    Inventors: Maria McDougall, Daryl Vanbesien, Allan Chen, Richard Veregin, Vladislav Skorokhod
  • Publication number: 20060269324
    Abstract: An image forming apparatus may include: a photoreceptor and a corona charging device or bias transfer roller that provides a charge to an image receiving medium. A cover may be disposed over a portion of the corona charging device or the bias transfer roller to shield the photoreceptor from exposure to the charge from the corona charging device when image receiving medium is charged and in contact with the photoreceptor.
    Type: Application
    Filed: May 31, 2005
    Publication date: November 30, 2006
    Applicant: XEROX CORPORATION
    Inventors: Mortiz Wagner, Michael Turan
  • Publication number: 20060269098
    Abstract: An image processing apparatus includes first and second synthesizing sections and an outputting section. The first synthesizing section synthesizes a code image with a part of an original image. The code image has a size smaller than that of the original image. The second synthesizing section synthesizes a marker image with another part of the original image outside the code image. The outputting section outputs a synthesized image in which the original image, the code image and the marker image are synthesized. The marker image includes a first region colored with a first color and a second region colored with a second color different from the first color. At least a part of the second region is in contact with the first region. The marker image is used to correct slant of the code image when decoding the code image.
    Type: Application
    Filed: October 28, 2005
    Publication date: November 30, 2006
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Kenji Ebitani
  • Publication number: 20060269859
    Abstract: A toner that is emulsion aggregation toner particles having an acrylate-containing polymer binder and at least one colorant has an average particle size of from about 5.0 ?m to about 6.7 ?m and an average circularity of about 0.950 to about 0.970. The toner preferably is comprised of styrene-butyl acrylate binder and gel. The toner preferably exhibits a transfer efficiency of about 0.8-1.0, a developability of about 0.3 to about 1.5 mg/cm2, and a charge to diameter ratio (q/d) of about ?0.7 to about ?0.1 fC/micron. A developer containing the toner and a method of forming an image using the toner are also described.
    Type: Application
    Filed: May 31, 2005
    Publication date: November 30, 2006
    Applicant: XEROX CORPORATION
    Inventors: Vladislav Skorokhod, Richard Veregin, Wafa Bashir, Paul Gerroir, Emily Moore
  • Publication number: 20060269133
    Abstract: A method for processing image data may include: generating a window mask that indicates which pixels are part of a window and generating raw window identifiers to be assigned to detected windows. The method may further include regenerating raw window identifiers from the window mask. For example, in an auto windowing image processsing system, a mask value may be stored in a page buffer, rather than a window identifier, so that less memory is required for the page buffer. In embodiments, the mask value may be a single bit while the window identifier is multiple bits.
    Type: Application
    Filed: May 31, 2005
    Publication date: November 30, 2006
    Applicant: Xerox Corporation
    Inventors: David Metcalfe, James Ziobro
  • Publication number: 20060268031
    Abstract: A dual-drop mode for a printer uses at least two full length waveforms and switches between the waveforms according to one or more patterning methodologies to print a page length document having a dual drop size print pattern across the printed portion of the page. This achieves printing from individual jet nozzles of either a large drop or a small drop. The page size patterning methodology is performed globally on at least a sub-page basis, rather than on a pixel-by-pixel basis and may be performed based on or independent of specific image data. In exemplary embodiments, printing is achieved using multiple print passes, with at least two print passes using different sized ink droplets.
    Type: Application
    Filed: May 31, 2005
    Publication date: November 30, 2006
    Applicant: XEROX CORPORATION
    Inventors: Trevor Snyder, David Knierim, Joel Chan
  • Publication number: 20060268036
    Abstract: A dual-drop mode for a printer uses at least two full length waveforms and switches between the waveforms according to one or more patterning methodologies to print a page length document having a dual drop size print pattern across the printed portion of the page. This achieves printing from individual jet nozzles of either a large drop or a small drop The page size patterning methodology is performed globally on at least a sub-page basis, rather than on a pixel-by-pixel basis and may be performed based on or independent of specific image data.
    Type: Application
    Filed: May 31, 2005
    Publication date: November 30, 2006
    Applicant: XEROX CORPORATION
    Inventors: David Knierim, Trevor Snyder, Joel Chan
  • Publication number: 20060269325
    Abstract: A xerographic printing device, including a charging device having a thick grid that includes a first pattern divided by a second pattern. In some embodiments the first pattern is a hex, the second pattern is a solid band, the first pattern is divided into two sections of equal size, each section corresponds to a two-dimensional array of pins, the first pattern is formed by etching, the second pattern is formed by the absence of etching, and the grid is constructed of stainless steel. The charging device can be a corotron, a dicorotron, a scorotron, a discorotoron, a pin corotron, a pin scorotron, or any other charging device of that type.
    Type: Application
    Filed: May 31, 2005
    Publication date: November 30, 2006
    Applicant: XEROX CORPORATION
    Inventor: Eliud Robles-Flores
  • Publication number: 20060269856
    Abstract: A photoconductive imaging member including at least a substrate, an optional thick undercoat layer, a charge generating layer comprising a high sensitivity pigment and a low sensitivity pigment, and a charge transport layer.
    Type: Application
    Filed: May 27, 2005
    Publication date: November 30, 2006
    Applicant: XEROX CORPORATION
    Inventors: Jin Wu, Liang-bih Lin, Geoffrey Foley
  • Patent number: D533291
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: December 5, 2006
    Assignee: Xerox Corporation
    Inventors: Mark S. Penke, Donald A. Brown