Patents Assigned to Xerox
  • Emulsion aggregation toner particles coated with negatively chargeable and positively chargeable additives and method of making same
    Patent number: 6503677
    Abstract: An emulsion aggregation toner particularly adapted for use in hybrid scavengeless development includes toner particles of polymer binder, colorant and a surface additive package containing at least one additive negatively chargeable to a carrier and at least one additive positively chargeable to the carrier. The toner is able to exhibit high stable triboelectric charging ability, and substantially eliminates charge through and slow admix in a developer employing the toner.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: January 7, 2003
    Assignee: Xerox Corporation
    Inventors: Edward J. Gutman, Bernard Grushkin, John G. Ruhland
  • Rotating element sheet material with microstructured substrate and method of use
    Patent number: 6504525
    Abstract: Systems in one embodiment of the present invention comprise rotating element sheet material with a microstructured substrate component, and a method of assembling such rotating element sheet material.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: January 7, 2003
    Assignee: Xerox Corporation
    Inventor: John Christopher Knights
  • Charge emitting print head for image forming systems
    Patent number: 6504557
    Abstract: A print head suitable for use in an image forming system is provided having a pair of electrode layers separated by an isolating structure that includes a semiconductor. The presence of the semiconductor, such as a semiconductor layer, extends the life of the print head by reducing degradation of the print head.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: January 7, 2003
    Assignee: Xerox Corporation
    Inventors: Alexander A. Kosyachkov, Igor Kubelik, Lech Jedral, Dung Nguen, Rossitza Ivanova
  • Method and apparatus for using rotatable templates within look-up tables to enhance image reproduction
    Publication number: 20030002739
    Abstract: The present invention is a method and apparatus for improving the appearance of electronic images, and more specifically, to the efficient use of template rotation within a template matching process to enhance such images. The invention reduces the number of entries that are stored in a look up table by eliminating identical patterns that differ only by the angle at which they are output. The appropriate templates are then rotated it by the required angle for output subsequent to their retrieval from the lookup table.
    Type: Application
    Filed: July 1, 2002
    Publication date: January 2, 2003
    Applicant: Xerox Corporation
    Inventors: Robert P. Loce, Jeffrey D. Kingsley
  • Low data line capacitance image sensor array using air-gap metal crossover
    Publication number: 20030001222
    Abstract: The signal-to-noise ratio of amorphous silicon (a-Si:H) image sensor arrays is limited by electronic noise, which is largely due to data line capacitance. To reduce data line capacitance, an air-gap (i.e., vacuum or gas-filled space) is produced at crossover points separating the data lines and gate lines. This air-gap crossover structure is formed by depositing a release material on the gate lines, forming the data lines on the release material, and then removing (etching) the release material such that the data lines form an arch extending over the gate lines. A dielectric material is then applied to strengthen the data line, and the sensor pixels are then formed.
    Type: Application
    Filed: July 2, 2001
    Publication date: January 2, 2003
    Applicant: Xerox Corporation
    Inventors: Robert A. Street, Ping Mei, Jeffrey T. Rahn
  • Sheet set stacking system with reduced stubbing
    Publication number: 20030001326
    Abstract: A set fastening, ejecting, and stacking system for stacking sets of printed sheets with staples or other set fasteners that are being ejected by a set ejector with a horizontal movement component to slide the stapled set out over the stack. An automatic dynamic ramp system is provided by a foldable member which is folded in a vertical direction by the horizontal movement of the set ejector to temporarily lift up the stapled area of the set out of contact with the stack while that set is being ejected to prevent snagging.
    Type: Application
    Filed: July 2, 2001
    Publication date: January 2, 2003
    Applicant: Xerox Corporation
    Inventors: Daniel J. McVeigh, Bryan C. Winkelman
  • Information notifying method and apparatus
    Publication number: 20030005332
    Abstract: When a security server detects an abnormality in the building by a sensor, the security server sends an abnormality notification mail that has embedded a link to image information shot by a supervision camera upon detection of an abnormality and a mail address of the security server to a portable telephone terminal and in case neither access from the portable telephone terminal to the image information nor a response mail is confirmed, determines that the abnormality mail is not confirmed by the user and notifies occurrence of the abnormality to a security center.
    Type: Application
    Filed: December 14, 2001
    Publication date: January 2, 2003
    Applicant: Fuji Xerox Co., Ltd.
    Inventors: Kazunori Horikiri, Hitoshi Abe, Yusuke Kano, Hirotake Kudo
  • Injection molded noise attenuator for a photoreceptor
    Publication number: 20030002885
    Abstract: An improved process for injection molding of components having zero draft sides comprising: making a mold having a zero draft cavity and an end-cap to seal the mold; injecting suitable resin material into the mold; foaming the resin material; separating the end-cap section from the cavity section of the mold; and removing the part from the mold. In particular, the zero draft process is intended for manufacture of an improved zero draft cylindrical noise attenuator for electrostatographic printers, said attenuator having a cylindrical sidewall thicker than 4 mm throughout at least most of its circumference; and a gap along the length of its long dimension.
    Type: Application
    Filed: August 21, 2002
    Publication date: January 2, 2003
    Applicant: Xerox Corporation
    Inventors: Alan M. Litman, Rafael Malespin, Keith A. Nau
  • Ink-jet printer, ink cartridge for the same
    Publication number: 20030001922
    Abstract: An ink set is used in a bidirectional print, and each of first and second absorption quantity differences is equal to or less than 10 ml/m2 in a contact time of 10 msec. in a dynamic scanning absorption meter. The first absorption quantity difference indicates difference between a absorption quantity when a first ink of the ink set is applied on a paper sheet on which a second ink of the ink set is applied and which is used for a print operation, and a absorption quantity when the first ink is applied on the paper sheet on which no ink is applied. The second absorption quantity difference indicates difference between an absorption quantity when the second ink is applied on the paper sheet on which the first ink is applied, and an absorption quantity when the second ink is applied on the paper sheet on which no ink is applied.
    Type: Application
    Filed: May 9, 2002
    Publication date: January 2, 2003
    Applicant: Fuji Xerox Co., Ltd.
    Inventor: Takeshi Hori
  • Photochromic electrophoretic ink display
    Publication number: 20030002132
    Abstract: Disclosed is an electrophoretic ink comprising a suspending fluid and, suspended in the suspending fluid, a plurality of particles comprising a mixture of a chelating agent and a spiropyran material of the formula 1
    Type: Application
    Filed: May 24, 2001
    Publication date: January 2, 2003
    Applicant: Xerox Corporation
    Inventors: Daniel A. Foucher, Raj D. Patel, Naveen Chopra, Peter M. Kazmaier, James Wojtyk, Erwin Buncel
  • Document communication systems for use in automobiles
    Publication number: 20030004626
    Abstract: A document device, including an input scanner and printer, is installed in an automobile. The document device can transmit and receive image data wirelessly, and further interacts with a Global Positioning System (GPS) device within the automobile to determine the location of the automobile. Aspects of documents based on received image data, and the destinations of transmitted image data, can be made dependent on the location of the automobile at any time. Received image data is retained in memory and printed out when the car is in a predetermined condition, such as being turned on.
    Type: Application
    Filed: June 28, 2001
    Publication date: January 2, 2003
    Applicant: Xerox Corporation
    Inventor: Robert F. Lipowicz
  • Article and apparatus for particulate size separation
    Publication number: 20030000869
    Abstract: An article including: a 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: Application
    Filed: June 11, 2002
    Publication date: January 2, 2003
    Applicant: Xerox Corporation
    Inventors: Juan A. Morales Tirado, Samir Kumar, Judith M. Vandewinckel, Fumii Higuchi
  • Fast efficient window region coalescing in a two-pass auto-windowing environment
    Publication number: 20030002087
    Abstract: A method and apparatus are provided for the processing of an image, such as a document. The invention determines the location of differing content types within the document allowing specialized processing of various content types. The invention performs the identification of pixels having similar content characteristics into windows during the first scanning pass of the document by the use of an identifier equivalence table to update selected memory locations to a base identifier during processing. A second pass processing is available to enhance or alter the image by the use of the information gathered during first pass processing. The present invention benefits from a very low memory requirement while being able to determine windows extending the length or width of the image.
    Type: Application
    Filed: June 27, 2001
    Publication date: January 2, 2003
    Applicant: Xerox Corporation
    Inventors: David J. Metcalfe, Jeng-nan Shiau
  • Method and apparatus for factoring ambiguous finite state transducers
    Publication number: 20030004705
    Abstract: A method factors an ambiguous finite state transducer (FST) into two finite state transducers. The first FST is functional (i.e., unambiguous). The second FST retains the ambiguity of the original FST but is fail-safe (i.e., no failing paths) when applied to the output of the first FST. That is, the application of the second FST to an input string never leads to a state that does not provide a transition for the next symbol in the input. Subsequently, the first FST can be factorized into a left-sequential FST and a right-sequential FST that jointly represent a bi-machine.
    Type: Application
    Filed: December 18, 2000
    Publication date: January 2, 2003
    Applicant: Xerox Corporation
    Inventor: Andre Kempe
  • Printing methodology and apparatus adapted to receive data form a portable memory device and generate personalized print items
    Publication number: 20030002081
    Abstract: A printing apparatus adapted to access data transmitted from a portable memory device, such as a hand-held organizer or similar device. Data received from the portable memory device can be incorporated into an output print to provide a business card or other personalized print item. A data template stored in the printing apparatus provides a structure for specifying the printed format of the data transmitted from the portable memory device.
    Type: Application
    Filed: June 29, 2001
    Publication date: January 2, 2003
    Applicant: Xerox Corporation
    Inventors: Anthony J. Leone, David A. Kavanagh
  • Radio communication apparatus
    Publication number: 20030002107
    Abstract: An optical bus 30 optically connects each board of a signal processing section 22 and each board of a transmission/reception section 40 for transmitting an optical signal output to the optical bus 30 by each board of the signal processing section 22 to each board of the transmission/reception section 40 in a non-block state. In contrast, the optical bus 30 transmits an optical signal output to the optical bus 30 by each board of the transmission/reception section 40 to each board of the signal processing section 22 in a non-block state.
    Type: Application
    Filed: February 11, 2002
    Publication date: January 2, 2003
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tomo Baba, Masao Funada, Takeshi Kamimura, Hidenori Yamada, Junji Okada, Shinya Kyozuka, Kazuhiro Sakai, Tsutomu Hamada, Shinobu Ozeki, Osamu Takanashi, Masaaki Miura, Takehiro Niitsu, Masashi Hisada, Kenichi Kobayashi, Akira Toshima
  • Bearing
    Publication number: 20030002758
    Abstract: A bearing for use in a reproduction machine includes an elongated body having an elongated first portion and an elongated second portion. The first portion extends radially outward from the second portion. The second portion includes a lumen for receiving and supporting a shaft. Resilient elongated members originate from the second portion and extend radially outward toward the first portion and are spaced from the second portion over a portion thereof. The resilient members are movable between a first position and a second position for removable securement to a wall in a reproduction machine.
    Type: Application
    Filed: August 27, 2002
    Publication date: January 2, 2003
    Applicant: Xerox Corporation
    Inventor: Andrew F. Wyer
  • Ink jet recording device and bubble removing method
    Publication number: 20030001927
    Abstract: Heating elements are driven to continuously perform a dummy jet when the number of accumulated printed sheets reaches a predetermined number that causes the image quality deficiency. The surface temperature of a recording head is increased to T1 ° C. to boil ink in the individual channel. A bubble attached to the common liquid chamber side edge of the individual channel is spaced from the wall surface to be expanded to be integrated with other bubbles, and then, is discharged from the common liquid chamber to an ink supply chamber by its floating force. The bubble can be removed reliably.
    Type: Application
    Filed: March 20, 2002
    Publication date: January 2, 2003
    Applicant: Fuji Xerox Co., Ltd.
    Inventors: Kazuyuki Oda, Takayuki Takeuchi, Kenji Ikeda, Takeshi Yoneyama, Masahiko Fujii
  • Printing system of ink jet printer and ink selecting method
    Publication number: 20030001923
    Abstract: The object of the present invention is to provide a printing system of an ink jet printer that can obtain a sufficient image density by suppressing a feathering.
    Type: Application
    Filed: April 26, 2002
    Publication date: January 2, 2003
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Takeshi Hori
  • Distributed actuation allocation for large assemblies of implementation units
    Publication number: 20030002447
    Abstract: Apparatus and methods that approximately solve an actuation allocation problem by breaking the solution into modules, which may or may not be overlapping. The solution to the actuation allocation problem is expressed in terms of solutions for each of the modules. The solutions for the modules serve as constraints for a solution of the optimization problem on each module. The optimization problem for each module is decomposed into further modules until the modules consist of a small enough number of individual implementation units so that the solution for the module can be solved using conventional optimization techniques.
    Type: Application
    Filed: April 6, 2001
    Publication date: January 2, 2003
    Applicant: Xerox Corporation
    Inventors: Warren B. Jackson, Markus P.J. Fromherz