Patents Assigned to Xerox
  • Patent number: 6547370
    Abstract: A method for printing in an image forming system is disclosed. The method, in combination with an apparatus printhead, suppresses defects in printed images. When an image forming system prints an image or group of images in a swath by swath manner, there is a tendency for minor printing defects to arise based on poor alignment of the printhead or ink ejectors, or an error in the instruction software. The printing defects can be defects such as unwanted white spaces or lines, or unwanted bold areas or overlapping swath edges. The present invention utilizes the edges of the swaths to insert a stitch line between the swaths having a different number and size of pixels printed, to allow for modification of the stitch line after measuring an actual advance of a printing medium between each instance of a swath. The same image data line provides the instructions to print both the first and second portions of the stitch line, between each swath.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: April 15, 2003
    Assignee: Xerox Corporation
    Inventors: David A. Mantell, Thomas N. Taylor, Doron Kletter
  • Patent number: 6548571
    Abstract: A process for the preparation of an ink which comprises mixing an ink vehicle, a colorant and a latex generated by the polymerization of a mixture of olefinic monomers, wherein at least one of said olefinic monomers is an ionic sulfonate monomer and which polymerization is accomplished in the presence of an anionic surfactant, and a nonionic surfactant.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: April 15, 2003
    Assignee: Xerox Corporation
    Inventors: Chieh-Min Cheng, Min-Hong Fu
  • Patent number: 6549327
    Abstract: Disclosed is a display comprising an arrangement of a plurality of optically anisotropic rotatable elements, each of the rotatable elements having a surface in contact with an enabling fluid, the rotatable elements being electrically dipolar in the presence of the enabling fluid and thus being subject to rotation upon application of an electric field, the rotatable elements being free to rotate in place but not free to translate substantially so as to disrupt the arrangement of rotatable elements, wherein a first portion of the surface contains a mixture of a chelating agent and a spiropyran material of the formula wherein n is an integer representing the number of repeat —CH2— units and R is —H or —CH═CH2, and wherein a second portion of the surface contains substantially no spiropyran.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: April 15, 2003
    Assignee: Xerox Corporation
    Inventors: Daniel A. Foucher, Raj D. Patel, Naveen Chopra, Peter M. Kazmaier, Erwin Buncel, James Wojtyk
  • Patent number: 6547885
    Abstract: A draft shield apparatus having a longitudinal axis including: an open upper end section defining a substrate entry end, an open lower end section defining a substrate exit end, and a central section between the upper end section and the lower end section, the apparatus defining a passageway which extends through the upper end section, the central section, and the lower end section along the longitudinal axis to result in an upper end section inner surface, a central section inner surface, and a lower end section inner surface, wherein the passageway has a width sufficiently large to permit movement of at least a portion of a substrate through the apparatus; wherein the upper end section inner surface is inclined towards the longitudinal axis, wherein the lower end section inner surface is inclined towards the longitudinal axis and the lower end section inner surface extends into the passageway such that the width of the substrate exit end is smaller than the width of the substrate entry end.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: April 15, 2003
    Assignee: Xerox Corporation
    Inventor: Eugene A. Swain
  • Patent number: 6549691
    Abstract: An optical cross switch including an improved system to align optical components is described. The system utilizes a highly transmissive sensor positioned in the optical path of an optical signal to determine the precise position of the optical signal. A feedback loop uses output from the highly transmissive sensor to readjust elements that maintains the optical signal in a desired position. The current system is particularly suitable for use in an optical cross switch.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: April 15, 2003
    Assignee: Xerox Corporation
    Inventors: Robert A. Street, Eric Peeters, Michel A. Rosa, Jeng Ping Lu, Christopher L. Chua
  • Publication number: 20030067037
    Abstract: An improved method and system for laser doping a semiconductor material is described. In the invention, phosphorous nitride is used as a dopant source. The phosphorous nitride is brought into close proximity with a region of the semiconductor to be doped. A pulse of laser light decomposes the phosphorous nitride and briefly melts the region of semiconductor to be doped to allow incorporation of dopant atoms from the phosphorous nitride into the semiconductor.
    Type: Application
    Filed: October 28, 2002
    Publication date: April 10, 2003
    Applicant: Xerox Corporation
    Inventors: Jeng Ping Lu, Ping Mei, James B. Boyce
  • Publication number: 20030067097
    Abstract: A method of treating a flexible multi-layer member exhibiting a glass transition temperature and including a surface layer, the method composed of: moving the member through a member path including: a contact zone defined by contact of the member with an arcuate surface including a curved contact zone region; a pre-contact member path before the contact zone; and a post-contact member path after the contact zone; heating sequentially each portion of the surface layer such that each of the heated surface layer portions has a temperature above the glass transition temperature while in the curved contact zone region; and cooling sequentially each of the heated surface layer portions while in the contact zone such that the temperature of each of the heated surface layer portions falls to below the glass transition temperature prior to each of the heated surface layer portions exiting the curved contact zone region, thereby defining a cooling region, wherein the heating is accomplished in a heating region encompas
    Type: Application
    Filed: October 9, 2001
    Publication date: April 10, 2003
    Applicant: Xerox Corporation
    Inventors: Robert C.U. Yu, John A. Bergfjord
  • Publication number: 20030069877
    Abstract: A system generates a query using an entity extractor, a categorizer, a query generator, and a short run aspect vector. The entity extractor identifies a set of entities in selected document content for searching information related thereto using an information retrieval system. The categorizer defines an organized classification of document content with each class in the organization of content having associated therewith a classification label that corresponds to a category of information in the information retrieval system. The categorizer assigns the selected document content a classification label from the organized classification of content. A query generator formulates a query that restricts a search at the information retrieval system to the category of information in the information retrieval system identified by the assigned classification label.
    Type: Application
    Filed: December 5, 2001
    Publication date: April 10, 2003
    Applicant: Xerox Corporation
    Inventors: Gregory T. Grefenstette, James G. Shanahan
  • Publication number: 20030070139
    Abstract: A system for automatic emphasis of freeform annotations contained within an electronic document is performed based on a determined importance of each annotation. The importance of each annotation is determined by a mark parser that groups, types and ranks each of the annotations. A weighted value is assigned to each grouped, ranked and typed annotation based on temporal and spatial information. The display characteristics of the weighted annotation is altered based on the weighted value.
    Type: Application
    Filed: September 16, 2002
    Publication date: April 10, 2003
    Applicant: Fuji Xerox Co., Ltd.
    Inventors: Catherine C. Marshall, Frank M. Shipman, Gene Golovchinsky, William N. Schilit, Kei Tanaka, Morgan N. Price
  • Publication number: 20030068166
    Abstract: A toner maintenance system for an electrophotographic developer unit, including a sump for storing a quantity of developer material comprised of carrier and toner material; a first member for transporting a mixture of developer material and toner particles from the sump, the first member having a voltage applied thereto; a metering blade, positioned closely adjacent to the first member to maintain the compressed pile height of the developer material on first member at a desired level; and a sensor device for measuring the current between the first member and the metering blade, and generating a signal indicative thereof.
    Type: Application
    Filed: October 4, 2001
    Publication date: April 10, 2003
    Applicant: Xerox Corporation
    Inventors: Mark J. Hirsch, John F. Knapp, William H. Wayman, Thomas W. Pike
  • Publication number: 20030068571
    Abstract: Methods and apparatus for forming on a recording medium an image whose resistance to water and light is improved and whose image quality is enhanced, with printing speed being increased due to drying of ink being accelerated. The methods include the steps of: forming a layer including resin particles on a surface of an intermediate transfer medium or on a surface of a recording medium; recording the image by jetting ink from an inkjet recording head onto the resin particle layer so that the ink is retained in cavities of the resin particle layer; and either transferring the resin particle layer from the surface of the intermediate transfer medium to a recording medium to fix the resin particle layer thereto or fixing the recording medium having the resin particle layer retaining the ink.
    Type: Application
    Filed: March 18, 2002
    Publication date: April 10, 2003
    Applicant: Fuji Xerox Co., Ltd.
    Inventors: Yasuhiro Uehara, Motofumi Baba
  • Publication number: 20030066968
    Abstract: A process including: magnetically energizing susceptible magnetic particles; and accumulating the resulting terahertz lasing mode output of the particles.
    Type: Application
    Filed: October 5, 2001
    Publication date: April 10, 2003
    Applicant: Xerox Corporation
    Inventor: Ronald F. Ziolo
  • Publication number: 20030067009
    Abstract: Semiconductor devices in an optoelectronic integrated circuit are electrically isolated from each other by using planar lateral oxidation to oxidize a buried semiconductor layer vertically separating the semiconductor devices.
    Type: Application
    Filed: October 25, 2002
    Publication date: April 10, 2003
    Applicant: Xerox Corporation
    Inventors: Christopher L. Chua, Philip D. Floyd, Thomas L. Paoli, Decai Sun
  • Publication number: 20030067498
    Abstract: A method for displaying literary and/or linguistic information about a “lookup” word/phrase from an information set is provided. The information set is comprised of one or more node link structures. Each node link structure is comprised of a plurality of related nodes. Each node contains information and relationships between nodes provide information about words/phrases. A display system receives a request for information about a “lookup” word/phrase (1). A node link structure is selected and retrieved (2). Hierarchical addresses are assigned to each node, representing a tree structure (4). Display addresses are assigned to each node based on a surface function (e.g., hyperbolic function), representing a mapping of the tree structure to a surface shape corresponding to the surface function (6). The tree structure is rendered to the display.
    Type: Application
    Filed: October 9, 2001
    Publication date: April 10, 2003
    Applicant: XEROX CORPORATION
    Inventor: Micheal A. Parisi
  • Publication number: 20030067618
    Abstract: A printing system with one or more discrete print media trays, a marking engine and a controller in which prints are produced from a plurality of print jobs by using the controller to control delivery of print media sheets from the one or more discrete print media trays to the marking engine, each of the plurality of print jobs including a plurality of the predefined print media attributes; the one or more discrete print media trays respectively including the print media sheets having a plurality of print media attributes, a method for programming the one or more discrete print media trays, including selecting one print job of the a plurality of print jobs; correlating the plurality of the predefined printed attributes of the selected one of the plurality of print jobs to the plurality of print media attributes of the print media sheets stored in the at two discrete print media trays; and if the plurality of the predefined printed attributes do not correlate with the plurality of print media attributes of the
    Type: Application
    Filed: October 4, 2001
    Publication date: April 10, 2003
    Applicant: Xerox Corporation
    Inventors: Michael E. Farrell, Frederick O. Kissinger
  • Publication number: 20030066543
    Abstract: Apparatus including
    Type: Application
    Filed: November 8, 2002
    Publication date: April 10, 2003
    Applicant: Xerox Corporation
    Inventors: Mark Muscato, Carl A. Wisniewski
  • Publication number: 20030066371
    Abstract: Guide ring arranged coaxially with a drive shaft includes locating and locking features ensuring proper orientation of drive and driven shafts, also ensuring proper backlash between gears mounted thereon. Guide ring is inserted through a keyed aperture of a mounting bracket and brought into proximity with the driven shaft frame. Rotation of motor and guide ring in first direction draws shafts into alignment; mounting bracket is attached to driven shaft frame. Motor and guide ring then rotated in opposite direction to second extreme position in which the motor is locked and driven shaft can rotate freely.
    Type: Application
    Filed: September 5, 2001
    Publication date: April 10, 2003
    Applicant: Xerox Corporation
    Inventors: Ermanno C. Petocchi, Roger C. Male, Stephen A. Bonelli, Thomas C. Hatch
  • Publication number: 20030068176
    Abstract: A tensioning and detensioning assembly includes a frame and a moveable tensioning roll for tensioning the continuous loop belt. The moveable tensioning roll has an axis, a first end, a second end, a first position for tensioning the continuous loop belt, and a second position when the continuous loop belt is detensioned. When the moveable tensioning roll is in the second position, the first end is spaced a first distance from the first position, and the second end is spaced (from the first position) a second distance that is different from the first distance in order to enable safe, efficient and controlled, non-slipping removal and reinstallation of the flexible closed loop photoreceptor belt.
    Type: Application
    Filed: October 10, 2001
    Publication date: April 10, 2003
    Applicant: Xerox Corporation
    Inventors: Julio A. Sanchez-Banos, William G. Osbourne
  • Publication number: 20030068108
    Abstract: A bearing containing and force applying device comprises a single piece member including an adjustable force applying spring clip having a chest portion for mounting over and against a bearing device. The chest portion has first and second edges; a first surface, and a second surface for contacting an outer or back end of the bearing member. The adjustable force applying spring clip also has bearing retaining members connected to the second surface of the chest portion for receiving and retaining the bearing member; and resilient shoulder portions connected the first and second edges and bent backwards towards the first or back surface of the chest portion.
    Type: Application
    Filed: October 9, 2001
    Publication date: April 10, 2003
    Applicant: Xerox Corporation
    Inventors: Ronald G. Borne, Carlie A. Cuff
  • Patent number: 6545671
    Abstract: A kit comprising rotating element sheet material, a highlighting implement, and an erasing implement, a binder, and a method of use. The rotating element sheet material comprises a plurality of first rotatable elements and a plurality of second rotatable elements disposed in a substrate. Each first rotatable element in the plurality has a first collection of responses to incident electromagnetic radiation of interest. One response in the first collection renders the first rotatable element transparent-clear to incident electromagnetic energy of interest, and a second response renders the first rotatable element opaque to incident electromagnetic energy of interest. The first rotatable element also exhibits a first work function. Likewise, each second rotatable element has a second collection of responses to incident electromagnetic radiation of interest. A first response in the second collection renders the second rotatable element transparent-clear to the incident electromagnetic energy of interest.
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: April 8, 2003
    Assignee: Xerox Corporation
    Inventor: Alexander E. Silverman