Patents Assigned to Xerox
  • Image display medium ribs, production process thereof, and image display medium using the ribs
    Publication number: 20040160187
    Abstract: Ribs for an image display medium, which ribs can be retained between a pair of substrates. These image display medium ribs are formed by liquid injection molding (LIM molding), utilizing a heat-curable epoxy resin. In addition, the image display medium ribs are formed so as to have a cell-form arrangement.
    Type: Application
    Filed: February 17, 2004
    Publication date: August 19, 2004
    Applicant: Fuji Xerox Co., Ltd.
    Inventor: Kenji Yao
  • Recording device
    Publication number: 20040160475
    Abstract: A recording device for recording an image on a recording medium, the recording device comprising: a recording head having a liquid drop discharging surface for discharging liquid drops toward a recording medium; a liquid receptacle disposed at a position opposing a liquid drop discharging surface of the recording head, and able to accommodate the liquid drops; and a conveying device for conveying the recording medium between the recording head and the liquid receptacle, by a non-electrostatic attraction method.
    Type: Application
    Filed: February 17, 2004
    Publication date: August 19, 2004
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hiroaki Satoh, Nobuhiro Katsuta, Yoshihira Rai, Akira Mihara, Kenichi Kawauchi, Hiroshi Ikeda, Naoki Morita
  • Text sentence comparing apparatus
    Publication number: 20040162806
    Abstract: A text sentence comparison method includes converting a first text sentence and a second text sentence into a first R tree (or a first RO tree) and a second R tree (or a second RO tree), respectively, calculating a distance between the first R tree and the second R tree (or a distance between the first RO tree and the second RO tree) on the basis of a distance between two R trees (or a distance between two RO trees), which is defined at least in accordance with a condition of a mapping between vertexes of the two R trees (or the two RO trees), and calculating a distance between the first text sentence and the second text sentence on the basis of the calculated distance between the first R tree and the second R tree (or the calculated distance between the first RO tree and the second RO tree).
    Type: Application
    Filed: September 10, 2003
    Publication date: August 19, 2004
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Shaoming Liu
  • Method for automatic discovery of query language features of web sites
    Publication number: 20040162814
    Abstract: A method for automatically determining query language operators of a Web information source, includes providing a set of known query operators, each known query operator in the set operating according to at least one syntax, wherein for a test query comprising a query operator and a test key word, each syntax of the operator produces a different number of document matches for the test query at a known Web information source; performing the test query on the Web information source, wherein the test query produces a number of document matches on the Web information source; comparing the number of document matches produced by the Web information source with the number of document matches produced by the known operator's different syntaxes; and using an established criteria for determining if comparing results indicate the Web information source supports the known query operator according its matching syntax.
    Type: Application
    Filed: February 10, 2003
    Publication date: August 19, 2004
    Applicant: Xerox Corporation
    Inventors: Andre Bergholz, Boris Chidlovskii
  • Stepper motor automated self-test routine
    Publication number: 20040162704
    Abstract: A printing apparatus includes a stepper motor automated self-test routine that gives an approximation of the state of the degradation of the stepper motor and/or its driven load. The test includes artificially increasing the starting frequency above normal and/or reducing the operation current below normal by a known and controllable amount to the stepper motor and tracking the level at which the motor is just able to start operating. By examining the magnitude and/or change in these levels, the remaining life and reliability of the motor can be predicted. Alternatively, the self-test routine could be used in conjunction with paper path sensors to determine the start time for a stepper motor. The start times are stored for trend analysis.
    Type: Application
    Filed: February 14, 2003
    Publication date: August 19, 2004
    Applicant: Xerox Corporation
    Inventors: Robert P. Siegel, Kevin E. Price
  • Toner processes
    Publication number: 20040162373
    Abstract: A process comprising heating a latex and a colorant, and optionally a wax, and wherein the latex contains a polymer with a Mz value of from about 60,000 to about 150,000
    Type: Application
    Filed: February 18, 2003
    Publication date: August 19, 2004
    Applicant: Xerox Corporation
    Inventors: Chieh-Min Cheng, Emily L. Moore, Amy A. Albright, Tie Hwee Ng
  • Printer solid ink stick removal access feature
    Publication number: 20040160498
    Abstract: A feature allows for removing an ink stick from an ink feed channel, through the keyed opening for that shape of ink stick. In a keyed key plate opening, a clearance area between the key plate opening and the outer perimeter of the ink stick provides access through which a removal tool can be inserted alongside an ink stick in the channel. In an example, the clearance area is provided by an outwardly directed section of the perimeter of the key plate opening. In a particular implementation, the edge key plate opening is chamfered across the thickness of the key plate, except for a small portion of the perimeter of the key plate opening, which has a straight edge. The end of the removal tool has a surface to engage the ink stick, so that pressing the removal tool against the ink stick, and drawing the removal tool back through the clearance area pulls the ink stick through the key plate opening.
    Type: Application
    Filed: February 14, 2003
    Publication date: August 19, 2004
    Applicant: Xerox Corporation
    Inventor: Brent R. Jones
  • Photoconductive imaging members
    Publication number: 20040161682
    Abstract: A photoconductive imaging member containing a hole blocking layer, a photogenerating layer, a charge transport layer, and thereover an overcoat layer comprised of a polymer With a low dielectric constant and charge transport molecules.
    Type: Application
    Filed: February 19, 2003
    Publication date: August 19, 2004
    Applicant: Xerox Corporation
    Inventors: Jin Wu, Markus R. Silvestri, Liang-Bih Lin, Cindy C. Chen
  • Photoconductive imaging members
    Publication number: 20040161683
    Abstract: A photoconductive imaging member including a supporting substrate, a hole blocking layer thereover, a crosslinked photogenerating layer and a charge transport layer, and wherein the photogenerating layer includes a photogenerating component and a vinyl chloride, allyl glycidyl ether, hydroxy containing polymer.
    Type: Application
    Filed: February 19, 2003
    Publication date: August 19, 2004
    Applicant: Xerox Corporation
    Inventors: Jin Wu, Liang-Bih Lin, John S. Chambers
  • Information recording medium and method of producing the same
    Publication number: 20040161690
    Abstract: An information recording medium including at least one electrophotographic laminate film in which a surface resistance of at least one surface is in a range of 108 to 1013 &OHgr;/□, and on which a toner image corresponding to information is formed; and an opaque core base material laminated on the surface of the electrophotographic laminate film, on which surface the toner image is formed.
    Type: Application
    Filed: September 25, 2003
    Publication date: August 19, 2004
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kunio Sakurai, Tomoo Kobayashi, Kaoru Torikoshi
  • Photoconductive imaging members
    Publication number: 20040161681
    Abstract: A photoconductive imaging member comprised of a substrate, a photogenerating layer, and a charge transport layer containing a binder and a compound containing at least two (methyl)acrylates.
    Type: Application
    Filed: February 19, 2003
    Publication date: August 19, 2004
    Applicant: Xerox Corporation
    Inventors: Yuhua Tong, Jin Wu, Liang-Bih Lin, John F. Yanus
  • Method for decompressing JPEG files using a variable block size inverse discrete cosine transform
    Patent number: 6778707
    Abstract: A method for decompressing digital image data to improve the speed of decompression is disclosed. More specifically, the present invention improves image decompression time by operating upon a subset of the original data and by performing a modified discrete cosine transform on a subset of the originally provided data. The subset is determined by examining the compressed data and looking for a particular pattern of zero values and/or and “end of block” statement.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: August 17, 2004
    Assignee: Xerox Corporation
    Inventor: Ricardo L. de Queiroz
  • Finishing device having a sheet guiding and buffering mechanism
    Patent number: 6776404
    Abstract: A finishing device having a sheet guiding and buffering mechanism located in the space between a sheet transporting assembly and a finishing platform. The mechanism has two parallel retractable arms having a slight curvature along their length. Sheets dispensed seriatim from the transport assembly onto the arms conform to the curvature of the arms. In a normal mode, the arms are retracted for each sheet delivered thereto and the individual sheets drop onto platform to form a set of stacked sheets. When the last sheet of a set is dropped, the mechanism changes to a buffering mode and the arms collect and hold the first few sheets of the next set. Once the previous set has been finished and ejected from the platform, the arms are retracted and the sheets collected are dropped, and the mechanism is changed to the normal cycle for the remainder of the subsequent set.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: August 17, 2004
    Assignee: Xerox Corporation
    Inventors: Richard J. Milillo, Charles F. Prevost
  • Method of determining a resistive current
    Patent number: 6777959
    Abstract: A xerographic charging device corona current is determined by forming a first signal across a sense resistor in series with the charging device power supply, forming a second signal using a resistive voltage divider network across the power supply, and forming a third signal using a resistor-capacitor charging circuit across the power supply, and then processing the first, second and third signals to form an output signal that is based on the corona current.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: August 17, 2004
    Assignee: Xerox Corporation
    Inventor: Jerry F. Adams
  • Systems and methods for checking image/document quality
    Patent number: 6778684
    Abstract: A method and apparatus for modifying the perceived quality of a document or image. The method includes inputting image or document data representing the image or document to be modified, analyzing the image or document data for one or more objects, evaluating the objects as one or more of acceptable, improvable or deficient based on one or more quality factors. For each object that is evaluated as other than acceptable, the method and apparatus creates, displays and possibly applies a quality recommendation for the objects.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: August 17, 2004
    Assignee: Xerox Corporation
    Inventor: James E. Bollman
  • Driving force transmission apparatus and image forming apparatus using the same
    Patent number: 6778795
    Abstract: An image forming apparatus including a drive source for producing driving force; an image carrier driven by the driving force; and a driving force transmission apparatus for transmitting the driving force produced by the drive source to the image carrier, wherein the driving force transmission apparatus includes a first endless-shaped flat belt having a plurality of through holes along a travel direction thereof; and a rotation member having a plurality of projections to which said plural through holes of the first flat belt are fitted.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: August 17, 2004
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kiichiroh Iijima, Mamoru Kido
  • Method for steganographic decoding
    Patent number: 6778679
    Abstract: A method is presented for decoding auxiliary information in digital images which enables the encoding of both compact auxiliary information specific to a given image and a secret message into a given image such that the hidden message contained therein is only revealed in such a way that neither the image itself nor the auxiliary information alone are sufficient to reveal the secret message. Specifically, a method for decoding an auxiliary message in a digital image, having the steps of first receiving a function F through secure means; then, for each pixel (i,j) in digital image (D) obtaining a N×N windowed observation; applying function F to said N×N windowed observation; marking a corresponding pixel in message (I) with the value obtained from function F; and then writing out the hidden message.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: August 17, 2004
    Assignee: Xerox Corporation
    Inventor: John C. Handley
  • Image-forming apparatus with reduced deviation of continuous recording paper
    Patent number: 6778806
    Abstract: An image forming apparatus includes a photosensitive drum, scuff rollers to move a continuous recording paper along a transfer path, a tractor disposed upstream from the scuff rollers, back tension rollers disposed upstream from the tractor to exert a tension on the recording paper, a speed controller to adjust the transfer speed of the recording paper, and a pressure controller to adjust the pressure acting on the recording paper. The speed controller adjusts the circumferential speed of the back-tension rollers and/or scuff rollers and the pressure controller adjusts the pressure of the back-tension rollers and/or scuff rollers in order to reduce positional deviation of the recording paper.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: August 17, 2004
    Assignee: Fuji Xerox, Ltd.
    Inventor: Kiyoshi Chinzei
  • Polythiophenes and devices thereof
    Patent number: 6777529
    Abstract: Polythiophenes of the formula wherein R and R′ are side chains; A is a divalent linkage; x and y represent the number of unsubstituted thienylene units; z is 0 or 1, and wherein the sum of x and y is greater than zero; m represents the number of segments; and n represents the degree of polymerization.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: August 17, 2004
    Assignee: Xerox Corporation
    Inventors: Beng S. Ong, Lu Jiang, Yiliang Wu, Dasarao K. Murti
  • Article and apparatus for particulate size separation
    Patent number: 6776291
    Abstract: An article including: disk or vortex ring with a circular opening in the center of the disk; and a fastener adapted to concentrically attach the disk to the particle outlet opening of a classifier wheel.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: August 17, 2004
    Assignee: Xerox Corporation
    Inventors: Juan A. Morales Tirado, Samir Kumar, Judith M. Vandewinckel, Fumii Higuchi