Patents Assigned to Xerox
  • Patent number: 6936387
    Abstract: An electrophotographic photoreceptor that can sufficiently prevent occurrence of filming, whereby defects on an image can be sufficiently prevented, and an electrophotographic process cartridge and an electrophotographic apparatus using the electrophotographic photoreceptor are to be provided. The electrophotographic photoreceptor contains an electroconductive substrate having provided thereon a photosensitive layer, and an outermost layer of the photosensitive layer has a dynamic hardness of about from 13.0×109 to 100.0×109 N/m2. According to the invention, occurrence of flaws on the surface of the photoreceptor can be sufficiently prevented, and cracking of a member made in contact with the photoreceptor can also be sufficiently prevented. Therefore, occurrence of filming is sufficiently prevented, and occurrence of defects on an image is also sufficiently prevented.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: August 30, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kenji Yao, Wataru Yamada, Kazuhiro Koseki, Katsumi Nukada
  • Patent number: 6937361
    Abstract: CCD1 as an image reading part reads a copy at the upstream and downstream of reading positions, and image data B and A at each of the reading positions are obtained from an output delay circuit and a shading correction circuit, respectively. A streak detector 8 compares the image data A with B, and outputs black streak detecting data indicating that the image data A contains black streaky noises, when the image data is not coincident in succession as to a plurality of pixels arrayed in the sub-scanning direction. A streak eliminator normally outputs the image data A, but it outputs the image data B instead of the image data A with regard to the pixels from which the black streak detecting data containing the noise is outputted. The image data reading device of present invention being thus constructed, the device is able to accurately detect streaky noises by adhesion of thrashes to the reading unit, even if there are speed variations in the copy feeding.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: August 30, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Shin Kondo, Shunsuke Hamasuna, Kosuke Shimizu, Hiroshi Ishii
  • Patent number: 6937480
    Abstract: A printed wiring board is provided which can be applied even to circuit boards operating at high speed, and which can suppress electromagnetic wave radiation, and which can suppress a deterioration in density of mounting. At the printed wiring board, a first signal wire layer, a first ground layer having a first power source wire, a second ground layer having a second power source wire, and a second signal wire layer, are laminated. The first ground layer and the second ground layer are interlayer connected by many via holes. Return current, of signal current flowing through a signal wire, flows in the first ground layer, and a path of the return current is cut midway therealong at a position of the first power source wire. However, the return current is detoured by the via hole to the second ground layer, and flows thereat.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: August 30, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Daisuke Iguchi, Joji Wakita, Kazumi Ikeda, Osamu Ueno
  • Patent number: 6936396
    Abstract: A toner process comprised of heating a mixture of an acicular magnetite dispersion, a colorant dispersion, a wax dispersion, a first latex containing a crosslinked resin, a second latex containing a resin substantially free of crosslinking, a coagulant and a silica, and wherein the toner resulting possesses a shape factor of from about 120 to about 150.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: August 30, 2005
    Assignee: Xerox Corporation
    Inventor: Raj D. Patel
  • Patent number: 6937272
    Abstract: A camera is described having a display device for displaying one or more stored images after acquisition. The camera has a motion detector which enables the selection and/or display of a stored image to be controlled (at least partly) by physical movement of the camera. Scrolling (or panning) of an image in the display can be effected by moving the camera in a plane parallel to the plane of the camera display, or tilting the camera. Zooming can be effected by moving the camera is a direction generally perpendicular to the plane of the camera display. The movements are generally similar to those which the user would make if viewing the image through a window or lens, which leads to a highly intuitive manner of operation.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: August 30, 2005
    Assignee: Xerox Corporation
    Inventor: Christopher R. Dance
  • Patent number: 6935562
    Abstract: A system and method for generating information based on decoded embedded data from a substrate is implemented by reading embedded data from a substrate, decoding the embedded data to determine registration of the substrate relative to a reference in an apparatus, and developing and presenting human-sensible information based on the registration information. In one embodiment, the human-sensible information is visual information registered with the substrate. The human-sensible information may also comprise, for example, tactile, audible, or other sensory information.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: August 30, 2005
    Assignee: Xerox Corporation
    Inventors: David L. Hecht, L. Noah Flores, Matthew G. Gorbet
  • Patent number: 6936679
    Abstract: A charge-transporting polymer is represented by the following general formula (I-1) or (I-2): wherein A represents a group represented by the following general formula (II-1):
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: August 30, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Mieko Seki, Hirohito Yoneyama, Daisuke Okuda, Hidekazu Hirose, Tadayoshi Ozaki, Takeshi Agata, Toru Ishii, Kiyokazu Mashimo, Katsuhiro Sato
  • Publication number: 20050185688
    Abstract: A method of fabricating a surface emitting semiconductor laser includes the following steps. A first laminate of semiconductor layers and a second laminate of semiconductor layers are formed on a substrate. The first laminate includes a first reflection mirror layer of a first conduction type, an active region, a III-V semiconductor layer containing Al, and a second reflection mirror layer of a second conduction type, the second laminate being used for monitoring and having an oxidizable region. The first and second laminates are etched so as to form mesas on the substrate in which side surface of the III-V semiconductor layer contained in the first laminate is exposed. Oxidization of the III-V semiconductor layer from the side surface is started at an oxidization rate.
    Type: Application
    Filed: April 22, 2005
    Publication date: August 25, 2005
    Applicant: Fuji Xerox Co., Ltd.
    Inventors: Hideo Nakayama, Akira Sakamoto
  • Patent number: 6933088
    Abstract: Provided are a photoreceptor of an electophotographic system satisfactorily high in resistance to contamination with a developer or corona products and durability to a contact electrification unit or a cleaning blade and capable of preventing occurrence of film defects in the production, and a process cartridge and an image forming apparatus in which a good image quality can be obtained over a long period of time. The photoreceptor includes a conductive substrate and a silicon compound-containing layer located on the substrate and containing a cyclic siloxane compound and/or derivatives thereof. The cyclic siloxane compound has a cyclic structure containing a repeating unit represented by formula (1) wherein A1 and A2, which may be the same or different, each represent a monovalent organic group.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: August 23, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Wataru Yamada, Kazuhiro Koseki, Katsumi Nukada
  • Patent number: 6934053
    Abstract: Spectrally matched color outputs are obtained using data from a real-time sensor, such as, for example, a spectrophotometer on the output trays of a marking devices to determine the output spectra of a reproduced image. The output spectra of the reproduced image is compared with an output spectra of a target spectra stored in a computer memory to produce a mapping table that will spectrally match all subsequently reproduced color images in real-time. Thus, output color spectra are matched between displays and prints, scans and prints, scans and displays, or copies and prints.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: August 23, 2005
    Assignee: Xerox Corporation
    Inventors: Lingappa K. Mestha, Sohail A. Dianat
  • Patent number: 6933029
    Abstract: A label sheet for electrophotographic process is composed of a label body in which an adhesive layer is formed on the back surface of a label base and a separator that is tentatively bonded to the label body with the adhesive layer interposed in between so as to be peelable from the label body. Both of the label base and a separator base are made of heat-resistant resin film. A toner accepting layer contains a release agent and has surface resistivity of 1×1014 ?/? or more. An antistatic treatment layer has surface resistivity of 1×108 to 1×1012 ?/?.
    Type: Grant
    Filed: June 17, 2003
    Date of Patent: August 23, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Takashi Ogino, Kiyoshi Hosoi
  • Patent number: 6934412
    Abstract: A method for classifying an image as one of color and neutral assigns respective values associated with a plurality of pixels in the image to a plurality of respective current pixels. Reduced image pixels are produced as a function of the current pixels. The image is classified as one of neutral and color as a function of the reduced image pixels.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: August 23, 2005
    Assignee: Xerox Corporation
    Inventor: Jan Bares
  • Patent number: 6934860
    Abstract: A system, method and article of manufacture are provided for password protecting user access to a computer system. One or more images are displayed to a user. The user is then required to perform a sequence of actions involving the images. The performed sequence of actions is compared with a predefined sequence of actions. If the performed sequence of actions matches the predefined sequence of actions, user access is permitted.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: August 23, 2005
    Assignee: Xerox Corporation
    Inventor: Richard J. Goldstein
  • Patent number: 6933092
    Abstract: A magenta toner for electrophotography includes a binder resin and a colorant, wherein the toner contains at least a naphthol pigment having a structure represented by the following general formula (1) as the colorant, and has a shape factor SF1 of 110 to 140 obtained by the equation below and a volume average particle size of 2 to 9 ?m: wherein R represents the following group, and R? represents a hydrogen atom, an alkyl group or a methoxy group; SF1=R2/A×?/4×100 wherein R represents the maximum length of the toner and A represents the projected area of the toner.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: August 23, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Satoshi Yoshida, Yasuo Matsumura, Toyofumi Inoue, Hidekazu Yaguchi, Takahisa Fujii
  • Patent number: 6934497
    Abstract: An image forming apparatus has a black sensitized body and plural color sensitized bodies arranged in a row as well as a belt adapted to move round on a course, sequentially passing by or coming into contact with the plural sensitized bodies, of which the black sensitized body is located at an end of the row, a roll for causing the belt to come into contact with the black sensitized body and a retractable roll located between the color sensitized body disposed at the other end of the row of the sensitized bodies opposite to the black sensitized body and the color sensitized body immediately adjacent to the black sensitized body and adapted to shift from a position for holding itself in contact with the belt to a position for separating itself from the belt and vice versa to change the course of round movement of the belt.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: August 23, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kazuyoshi Hagiwara, Tadashi Ishikawa
  • Patent number: 6932470
    Abstract: An offset printing apparatus having a coated imaging member for use with phase-change inks, has a substrate, an optional intermediate layer, and thereover an outer coating with a silicone material and Q-resin, and an optional heating member associated with the offset printing apparatus.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: August 23, 2005
    Assignee: Xerox Corporation
    Inventors: David H. Pan, Santokh S. Badesha, Anthony Yeznach, Trevor J. Snyder
  • Patent number: 6931950
    Abstract: A system for analyzing particles including: a source of solid particles; a sampler apparatus attached to and integral with the source of solid particles which apparatus is adapted to enable removal of small amounts of sample material from the source; a sonication cell connected to the sampling apparatus which sonication cell receives, optionally conditions, and sonicates the small amounts of sample material; a sample analysis apparatus connected to the sonication cell which sample analysis apparatus is adapted to receive, optionally further condition, and analyze the resulting sonicated sample received from the sonication cell; and a liquid pump and liquid carrying lines adapted to: withdraw aliqouts from the source; convey a withdrawn aliqout to the sonication cell and sample analysis apparatus; and flush the system free of residual aliqout contamination.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: August 23, 2005
    Assignee: Xerox Corporation
    Inventors: Steven M. Malachowski, Vincenzo G. Marcello
  • Patent number: 6933089
    Abstract: A charge transport layer for an imaging member comprising a dual charge transport layer and wherein the charge transport layers comprise a photogenerating layer; (1) a first charge transport layer comprised of a charge transport component and a resin binder; and thereover and in contact with the first layer; (2) a second top charge transport layer comprised of a charge transport component, a resin binder and a hindered phenol dopant. The charge transport layer exhibits, excellent electrical performance, outstanding print quality and reduces the diffusion of the anti-oxidant into the charge generator layer.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: August 23, 2005
    Assignee: Xerox Corporation
    Inventors: Anthony M. Horgan, Satchidanand Mishra, Robert C. U. Yu, Kathleen M. Carmichael, Kent J. Evans, Timothy J. Fuller, Colleen A. Helbig, John F. Yanus, Damodar M. Pai, Karen S. Garland
  • Patent number: 6934507
    Abstract: Provided is an image forming apparatus, in which liable to produce remaining curl, highly effective curl correction is performed. The image forming apparatus includes: a roll receiving portion for receiving a continuous recording sheet wound into a roll shape; a sheet transporting portion for transporting the continuous recording sheet from the roll receiving portion; a cutting portion for cutting the continuous recording sheet sent out into a desired size; an image forming portion for forming a toner image on the recording sheet (which has been cut); a fixing portion for fixing the toner image to the recording sheet by heating the recording sheet on which the toner image is formed; a cooling portion for cooling the recording sheet to which the toner image has been fixed; and a curl correcting portion for correcting a curl of the recording sheet when the recording sheet is cooled.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: August 23, 2005
    Assignees: Fuji Xerox Co., Ltd., Fuji Photo Film Co., Ltd.
    Inventors: Yasushi Ohki, Yoshio Kanesawa, Yutaka Nogami, Yoshisada Nakamura, Tadakazu Edure
  • Patent number: D508944
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: August 30, 2005
    Assignee: Xerox Corporation
    Inventors: Kenneth J. Rieck, Murray O. Meetze, Jr.