Patents Assigned to Xerox
  • Patent number: 5898275
    Abstract: A fluorescent light source includes a fluorescent lamp, lamp bases attached to opposite ends of the fluorescent lamp, and an electrically insulating substrate connected to the fluorescent lamp. A heating element is positioned on the fluorescent lamp, and a first and second pair of power traces are formed on the electrically insulating substrate. The first pair of power traces are connected to the heating element to provide power thereto. The second pair of power traces are connected to a pair of electrical conductors that provide power to the fluorescent lamp. This fluorescent lamp can be used in a replaceable fluorescent light source unit for a document scanner. The replaceable fluorescent light source unit includes a housing, lamp base receiving members attached to the housing, and registration notches to properly align the fluorescent lamp. Lastly, the fluorescent lamp source includes light blocking material to provide a uniform illumination profile along the length of the lamp.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: April 27, 1999
    Assignee: Xerox Corporation
    Inventors: Joseph P. Taillie, Douglas E. Proctor
  • Patent number: 5896979
    Abstract: An endless belt type delivery device includes a drive roller, a plurality of driven rollers including a tension apply roller disposed in such a manner that the respective axial directions of the rollers are set parallel to each other, an endless belt wound around the respective rollers in such a manner that the endless can be driven by rotating the drive roller, and meandering adjusting means, provided in at least two of the above-mentioned rollers, for biasing contact pressures between the two or more rollers and the endless belt toward the axial-direction end portions of the rollers. The contact pressure between the rollers and the endless belt are biased in the opposite direction to the meandering direction of the endless belt by the meandering adjusting means, thereby being able to correct the meandering of the endless belt.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: April 27, 1999
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Norio Hokari, Shuji Iseki, Junichirou Sameshima, Yukio Hayashi, Ryoichi Tsuruoka, Mikio Kobayashi
  • Patent number: 5897643
    Abstract: A document copy-relationship management system for managing a copy relationship between documents based on document copy operations performed by a document processing device. The system maintains a data base including an ID table for each document recorded in the system according to the identifier of each document and the location and update date and time of each document, and it also maintains a link information table storing data associating the identifier of an original document and its update date and time and the identifier of a copy document and its update date and time.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: April 27, 1999
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Takashi Matsumoto
  • Patent number: 5897695
    Abstract: An ink composition comprised of a vehicle, colorant, and associated with said colorant a primary amine, a secondary amine, or a tertiary amine.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: April 27, 1999
    Assignee: Xerox Corporation
    Inventors: James D. Mayo, Marcel P. Breton, Stephan V. Drappel, Patricia A. Burns
  • Patent number: 5898592
    Abstract: A method for a sheet handling system where a controller communicates with a mailbox bin subsystem having a plurality of print receiving bins is provided. The plurality of bins are grouped into a first print receiving bin set, a second print receiving bin set and a third print receiving bin set with the first print receiving bin set including one or more print receiving bins, the second print receiving bin set including one or more print receiving bins and the third print receiving bin set including one or more print receiving bins.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: April 27, 1999
    Assignee: Xerox Corporation
    Inventors: David L. Salgado, James C. Campbell, John W. Daughton, Marilyn S. Grzenda, John D. Hower, Jr., Susan B. Layer, Barry P. Mandel
  • Patent number: 5898449
    Abstract: An ink cartridge for an ink jet printer has an ink supply in a housing, a printhead fixedly attached thereto, and an interface seal between the housing and printhead. The ink is contained in an absorbent material in the housing which is partitioned from the printhead assembly by a housing wall having a vent and an ink outlet. The ink flow path from the housing outlet to the printhead inlet is produced by a recess in the outer surface of the housing wall covered by the interface seal. The seal is a porous member having a thermosetting adhesive layer on one side thereof. The porous member has a slot therethrough, and the adhesive is the type not attacked by the ink. The surface of the porous member with the adhesive is bonded to the housing wall. The thermosetting adhesive moves through the porous member and bonds to the printhead surface containing the ink inlet to the housing wall, when the adhesive is cured.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: April 27, 1999
    Assignee: Xerox Corporation
    Inventors: Ram S. Narang, William R. Burger
  • Patent number: 5897248
    Abstract: A conformable bias transfer member for use in an electrostatographic printing apparatus comprising a conductive core having a layer of compressible material coated thereon to form a generally cylindrical roll member. The compressible material includes a conductive filler dispersed throughout the interstices thereof for providing conductivity control which is significantly insensitive to changes in temperature as well as relative humidity.
    Type: Grant
    Filed: June 21, 1994
    Date of Patent: April 27, 1999
    Assignee: Xerox Corporation
    Inventors: Edward L. Schlueter, Jr., Robert A. Gross, Kenneth W. Pietrowski
  • Patent number: 5898821
    Abstract: There is a provided method for use with a printing system in which a second halftone pattern is selectively substituted for a first halftone pattern. The printing system preferably buffers one or more of print jobs and places each of the one or more print jobs in a print ready format. The printing system further includes a processing system in which the placing of the one or more print job into the print ready format is performed, as well as a halftone substitution subsystem for selectively operating on one or more halftone patterns which reside in one of the one or more print jobs.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: April 27, 1999
    Assignee: Xerox Corporation
    Inventor: Warren F. Brandkamp
  • Patent number: 5898393
    Abstract: A data translating memory system useful in a liquid ink printer. The data translating memory system is organized such that the process of writing information and the process of reading the information causes a reorganization of the information. The memory includes memory cells, for storing bit signals, a first selection bus, coupled to a first plurality of groups of the memory cells for selection thereof, a first data bus, coupled to the first plurality of groups of memory cells, for transmitting bit signals, a second selection bus, coupled to a second plurality of groups of the memory cells for selection thereof, the second plurality of groups of the memory cells being different than the first plurality of groups of the memory cells, and a second data bus, coupled to the second plurality of groups of memory cells for transmitting bit signals.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: April 27, 1999
    Assignee: Xerox Corporation
    Inventor: John E. Werner
  • Patent number: 5895147
    Abstract: An electrostatographic printing machine and apparatus that utilizes a two layer roll charger for contact charging of photoreceptors. The charger includes a liquid retentive foam layer fitted over an electrically conductive shaft. The shaft can be solid or porous, the later requiring a separate liquid reservoir. The second layer is a thin liquid permeable member, over the foam layer, which transmits water at a slow, but controlled rate during the rotation of the roller. The roller may rotate synchronously with the photoreceptor or be allowed to slip on the photoreceptor surface to improve uniformity and contact. The membrane increases life by controlling the runout of liquid from the repository. Also, the present invention permits charging over photoreceptor pinholes.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: April 20, 1999
    Assignee: Xerox Corporation
    Inventors: John S. Facci, Michael J. Levy, Joseph Mammino
  • Patent number: 5895311
    Abstract: An abrasive apparatus adopted to abrade a curved surface of workpiece includes: an abrading head including an abrading tip having a substantially spherical outer surface and a rotating shaft supporting the abrading tip, the abrading head being positioned to face the curved surface; a thrust moving mechanism for relatively moving the abrading head and the curved surface; a lateral moving mechanism for relatively moving the abrading head and the curved surface; a pivotal moving mechanism for relatively moving the abrading head and the curved surface pivotally around a center point; and a controller for controlling the abrading head, the thrust moving mechanism, the lateral moving mechanism and the pivotal moving mechanism synchronously so that the abrading tip contacts and presses the curved surface at any point thereon with a substantially constant pressure in a direction consistent with a normal line thereat.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: April 20, 1999
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Takekazu Shiotani, Kimihiro Wakabayashi, Kazutoshi Hamada, Takaaki Sakakibara, Toshimasa Fujisawa
  • Patent number: 5896413
    Abstract: A contention control system unitarily manages a plurality of data transmissions so as to avoid contention therebetween. Data transmission command sending equipment of a data receiver continuously sends data transmission commands to a data sender according to a data transmission request. Data transmission-command receive control equipment receives the first valid one of the continuously-delivered data transmission commands therein and delivers it to data transmission control equipment. Correspondingly, data sending equipment starts to transmit data. Data transmission monitoring equipment of the data receiver monitors the state of transmission of the data.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: April 20, 1999
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kouichi Yoshimura, Takanori Hisanaga, Yuji Kozawa, Katsuya Mitsutake
  • Patent number: 5895738
    Abstract: An imaging system is provided which combines the perfect registration capabilities of xerocolography to form perfectly registered red, green and blue images in a single pass in one mode of operation. In another mode of operation, the color gamut possible with RGB toners is extended using black toner to develop an image that is formed using a second imager or exposure device. The result is an extended gamut color imaging process using four colors side by side in a single pass with a minimum amount of color desaturation and with a minimum number of image registrations. Yet another mode of operation provides for creating K+2 colors in a single pass. The three or two colors may be used to form highlight colors and/or logo colors.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: April 20, 1999
    Assignee: Xerox Corporation
    Inventors: Delmer G. Parker, Gregory J. Kovacs
  • Patent number: 5895470
    Abstract: A system for extracting and analyzing information from a collection of linked documents at a locality to enable categorization of documents and prediction of documents relevant to a focus document. The system obtains and analyzes topology, usage and path information from for a collection at a locality, e.g. a web locality on the world wide web. For categorization, document meta information is represented as document vectors. Predefined criteria is applied to the document vectors to create lists of "similar" types of documents. For relevance prediction, networks representing topology, usage path and text similarity amongst the documents in the collection are created. A spreading activation technique is applied to the networks starting at a focus document to predict the documents relevant to the focus document. Using category and relevance prediction information, tools can be built to enable a user to more efficiently traverse through the collection of linked documents.
    Type: Grant
    Filed: April 9, 1997
    Date of Patent: April 20, 1999
    Assignee: Xerox Corporation
    Inventors: Peter L. Pirolli, James E. Pitkow, Ramana B. Rao
  • Patent number: 5896137
    Abstract: An average calculating section calculates an average of nine pixel values of each pixel block. With an assumption that the average value is expressed by 9 bits as a.sub.1 a.sub.2 a.sub.3 a.sub.4 a.sub.5 a.sub.6 a.sub.7 a.sub.8 a.sub.9 (a.sub.k : 1-bit value), a data allocating section allocates the respective bits a.sub.1 -a.sub.9 to 3.times.3 bits of each memory block of a two-value data storing section. After the nine bits a.sub.1 -a.sub.9 are read out from the two-value data storing section, a data reconstructing section combines those nine bits into the original average value, and repeatedly copies the average value to form a 3.times.3 pixel block.
    Type: Grant
    Filed: February 12, 1996
    Date of Patent: April 20, 1999
    Assignee: Fuji Xerox, Co., Ltd.
    Inventors: Akihiro Ito, Koji Aikawa
  • Patent number: 5895154
    Abstract: A paper conditioner re-moisturizes paper immediately following fusing to restore paper moisture equilibrium and reduce curl. The paper conditioner uses moisturizing rollers with a textured elastomeric surface that prevents bead buildup of water at a nip formed between the moisturizing rollers and allows the rollers to conform to the surface texture of a sheet of paper passing therethrough.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: April 20, 1999
    Assignee: Xerox Corporation
    Inventors: Thomas Acquaviva, Rabin Moser
  • Patent number: 5895148
    Abstract: An apparatus and method that insures an even distribution of liquid in an aquatron charging device across the entire length of the device. This enables uniform charging across the width of the photoreceptor. The present invention fills and pressurizes a porous tube with a liquid. The liquid evenly exudes from the pores along the entire length of the porous tube. A hydrophilic liquid retentive foam which contacts the photoreceptor surface is wrapped snugly around the tube. The conductivity and overall rate of dispensation of liquid is controlled by the pressure differential across the porous tube.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: April 20, 1999
    Assignee: Xerox Corporation
    Inventors: Michael J. Levy, John S. Facci, Richard B. Lewis
  • Patent number: 5895141
    Abstract: A method to provide a highly intelligent, automated diagnostic system that identifies the need to replace specific parts to minimize machine downtime rather than require extensive service troubleshooting. In particular, a systematic, logical test analysis scheme to assess machine operation from a simple sensor system and to be able to pinpoint parts and components needing replacement is provided by a series of first level of tests by the control to monitor components for receiving a first level of data and by a series of second level of tests by the control to monitor components for receiving a second level of data. Each of the first level tests and first level data is capable of identifying a first level of part failure independent of any other test. Each of the second level tests and second level data is a combination of first level tests and first level data or a combination of a first level test and first level data and a third level test and third level data.
    Type: Grant
    Filed: April 6, 1998
    Date of Patent: April 20, 1999
    Assignee: Xerox Corporation
    Inventors: Roger W. Budnik, James M. Pacer, Guru B. Raj, Ralph A. Shoemaker, Michael G. Swales
  • Patent number: D408444
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: April 20, 1999
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Tetsuro Maeda
  • Patent number: D408845
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: April 27, 1999
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Katsumi Harumoto