Patents Assigned to Xerox
  • Patent number: 5766326
    Abstract: Disclosed is an ink composition which comprises water, a colorant, 1,4-diazabicyclo?2.2.2!octane, and a fluorinated material selected from the group consisting of (a) those of the formula ?(F.sub.2n+1 C.sub.n CH.sub.2 S).sub.2 (CH.sub.3)C--CH.sub.2 CH.sub.2 COO.sup.- !?B.sup.+ !, wherein n is an integer of from about 8 to about 20 and B is a cation, and (b) those of the formula ?(F.sub.3 C(F.sub.2 C).sub.n CH.dbd.CHCH.sub.2 OCH(OH)CH.sub.2).sub.2 NCH.sub.2 COO.sup.- !?X.sup.+ !, wherein X is a cation and n is an integer of from about 3 to about 20. Also disclosed are processes for preparing the aforementioned ink and ink jet printing processes employing the aforementioned ink.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: June 16, 1998
    Assignee: Xerox Corporation
    Inventors: Kurt B. Gundlach, Richard L. Colt, Luis A. Sanchez, Danielle Avolio
  • Patent number: 5767876
    Abstract: In a color ink jet recording method in which color image recording is conducted on each pixel with using plural kinds of inks of different colors, each unit pixel is a dot matrix consisting of dots of low-permeability ink and dots of high-permeability ink.
    Type: Grant
    Filed: August 18, 1995
    Date of Patent: June 16, 1998
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Takao Koike, Koichi Naitoh
  • Patent number: 5767877
    Abstract: A toner jet printer and method of use for printing images by manipulating individual toner particles using two-dimensional print cell arrays built by micro electro mechanical systems (MEMS) technologies. Toner particles are positioned by aerodynamic forces controlled by microvalves within each print cell by either selective or nonselective filling. If selectively filled, each cell is then heated or subjected to an aerodynamic force to eject the toner particles onto a paper substrate. If non-selectively filled, only those print cells corresponding to an intended image are addressed electronically to eject a toner particle from an addressed cell by aerodynamic forces controlled by valve actuation or by heating the print cell. Single color or multiple color printing can be achieved using the same cell array.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: June 16, 1998
    Assignee: Xerox Corporation
    Inventors: Ping Mei, David Kalman Biegelsen, James Buckley Boyce
  • Patent number: 5768440
    Abstract: A method of applying noise removal to an image so that the areas having the greatest variance have the least correction. First, the variance between each image pixel and its surrounding pixels is determined. Next, for the neighborhood around each pixel, a density of variance is determined. Finally the density of variance for the neighborhood around each pixel is used to correct the original pixel, the direction of correction being toward the mean value in the surrounding pixels. The result is that relatively uniform areas of the image, within which noise is most obvious, will get the most correction and areas that are textured will get the least.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: June 16, 1998
    Assignee: Xerox Corporation
    Inventors: Michael R. Campanelli, Steven J. Harrington
  • Patent number: 5764271
    Abstract: A printing system for printing several types of data on the same page, regardless of any differences in spot density between data types. This circuit provides a separate channel for each data type and processes each data type according to its own instructions and parameters (halftones, compressed images, font generation, etc) and according to its own spot density, without there being a necessity for there to be any synchronous relationship between x and y spot densities of the plurality of data types. Each channel has a boundary checker to determine whether the data is within the image boundary by comparing the x/y coordinates of the scanning beam to the input boundary data, and a data converter to convert the data according to its own instructions. Finally, the output of the channels is combined to form the data stream that is sent to the printer.
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: June 9, 1998
    Assignee: Xerox Corporation
    Inventor: James M. Donohue
  • Patent number: 5763128
    Abstract: Disclosed is an apparatus and method for creating simulated photographic-quality prints, including: (a)providing a coated transparent substrate having a wrong reading toner image formed thereon; (b)providing one surface of a backing substrate with a first coating of a polymeric adhesive binder having a glass transition temperature less than 55.degree. C. an antistatic agent, a lightfastness inducing agent and an optional filler; (c)providing the one surface of the backing substrate with a second coating in contact with the first coating wherein the second coating includes a polymer having a melting point of greater than 50.degree. C.; and a hydroxy functional anticurl agent and a liquid crystalline material; (d)providing another coating on the backing substrate opposite the one surface which has a fragrant aroma, antistatic agent, fire retardant material, and abrasion resistant material; and(e)adhering the substrates to each other by the application of heat and pressure.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: June 9, 1998
    Assignee: Xerox Corporation
    Inventor: Shadi L. Malhotra
  • Patent number: 5764273
    Abstract: A method and apparatus for using a raster output scanner which includes an array of independently addressable light valve elements that control the slow scan direction position of a spot in an image plane. In operation, the array is illuminated by light from a separate optical source and disposed such that the spot from each element of the array impinges the image plane in a different position in the slow scan direction and such that the maximum distance between the spots is less than the distance between scan lines. Only a single element of the array passes light per scan line, thus only a single spot is formed on the image plane per scan line. Control of which element in the array transmits a light beam per scan line allows control of the spot position in the slow scan direction for that scan line.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: June 9, 1998
    Assignee: Xerox Corporation
    Inventor: Thomas L. Paoli
  • Patent number: 5762812
    Abstract: Disclosed is a thermal ink jet printhead which comprises (a) an upper substrate with a set of parallel grooves for subsequent use as ink channels and a recess for subsequent use as a manifold, the grooves being open at one end for serving as droplet emitting nozzles; and (b) a lower substrate in which one surface thereof has an array of heating elements and addressing electrodes formed thereon, the lower substrate having a thick film insulative layer deposited over the heating elements and addressing electrodes and patterned to form recesses therethrough to expose the heating elements and terminal ends of the addressing electrodes; said upper and lower substrates being aligned, mated, and bonded together to form the printhead with the grooves in the upper substrate being aligned with the heating elements in the lower substrate to form droplet emitting nozzles, wherein the upper and lower substrates are bonded together with an adhesive which comprises a reaction product of (a) an epoxy resin selected from the
    Type: Grant
    Filed: May 2, 1996
    Date of Patent: June 9, 1998
    Assignee: Xerox Corporation
    Inventor: Ram S. Narang
  • Patent number: 5765090
    Abstract: A baffleless, easily accessible, copy sheet transport apparatus without sheet baffles that enables viewing and accessing jammed sheets without opening any baffles. The transport includes a pulley driven narrow timing belt with biased idler rolls providing normal force on belt driven copy sheets.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: June 9, 1998
    Assignee: Xerox Corporation
    Inventor: Cesidio J. DiCesare
  • Patent number: 5765080
    Abstract: A method and apparatus for delivering a uniform supply of toner to a development zone in an electrostatographic system is disclosed. Additional toner control in the form of magnets located near the donor member attract toner to the toner pick-up area and insure that a constant supply of toner reaches the development zone. The additional control of toner is especially useful when the supply of toner to the toner pick-up area is limited or the toner does not naturally flow to the toner pick-up area.. The toner supply is enhanced by a stationary magnet located adjacent the donor member and a magnet located on the charge metering blade. Both of the additional toner supply magnets form magnetic brushes of toner particles on the donor member surface, these magnetic brushes insuring a constant supply of toner to the development zone despite problematic development conditions.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: June 9, 1998
    Assignee: Xerox Corporation
    Inventor: Gregory V. Bogoshian
  • Patent number: 5764378
    Abstract: The present invention provides an image forming apparatus including first image density signal converter having a first conversion property for converting a multi-valued image density input signal to an image density output signal at a timing synchronizing with an image density signal clock, second image density signal converter having a second conversion property different from the first conversion property for converting a part of the image density input signal corresponding to a low density portion to an image density output signal indicating a value within a range in which an image is not developed, selection signal generator for outputting a selection signal having a period longer than that of the image density signal clock to select the first or second image density signal converter in a predetermined order, a phase of the selection signal being shifted in turn per every one or more main scanning synchronizing signals, pattern signal generator means for generating a pattern signal having a period longer
    Type: Grant
    Filed: October 18, 1995
    Date of Patent: June 9, 1998
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yasuhiro Oda, Kazuhiko Arai, Kazuhiro Iwaoka, Takayuki Yamashita, Masayo Higashimura, Masahiko Kubo
  • Patent number: 5765094
    Abstract: An image recording apparatus comprises an image carrier (1); a latent image forming means (2); a plurality of developing means (3: 3a, 3b, 3c and 3d); a transfer drum (5) having a sheet holding surface (A); a transfer means (6); a sheet feed means (11); a sheet type discriminating means (12) for discriminating whether or not the surface rigidity of the recording sheet (4) stacked on the sheet feed means (11) is higher than the reference surface rigidity; a curl deforming means (14) arranged in a conveyance passage of the recording sheet (4) from the sheet feed means (11) to the transfer drum (5), for forcibly curling the recording sheet (4) in accordance with a radius of curvature of the transfer drum (5) when it is discriminated by the sheet type discriminating means (12) that the recording sheet (4) is highly rigid; a sheet holding control means (19) for holding the recording sheet (4) on the same sheet holding surface (A) of the transfer drum (5) irrespective of the result of discrimination conducted by th
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: June 9, 1998
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Hideyasu Nakamura
  • Patent number: 5765075
    Abstract: A temperature sensor which contacts with a curved-surface body to be measured to sense a temperature thereof is provided with a support member having a bow-shaped surface; a thin film strung and laid between both ends in a direction of curvature (e.g., bow-shaped direction) of the bow-shaped surface; and a heat sensitive element disposed at a portion of the thin film. The portion being opposed to the bow-shaped surface. Also, the space portion side of the heat sensitive element may be coated with aluminum foil and a protect plate formed of aluminum, phosphorous bronze or copper is disposed on the body to be measured side of the heat sensitive element. Further, the temperature sensor may be incorporated in an apparatus that fixes the temperature sensors to the bow-shaped surface.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: June 9, 1998
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Syozo Yamamoto
  • Patent number: 5764263
    Abstract: A paper curl reduction process is conducted by applying an aqueous dye or pigment ink in an image-wise fashion to a side of a substrate and by applying a clear aqueous liquid to the opposite side of the substrate. An ink printing device includes at least one printhead for applying an aqueous ink to one side of a substrate to form visible images and at least one applicator for applying a clear aqueous liquid to the opposite side of the substrate. A paper curl reduction process is also conducted by applying an aqueous dye or pigment ink and an optional clear aqueous liquid in a selected image-wise fashion by a thermal ink jet printing method to both sides of a substrate to achieve duplex ink jet printing with visible images on two sides of the said substrate.
    Type: Grant
    Filed: February 5, 1996
    Date of Patent: June 9, 1998
    Assignee: Xerox Corporation
    Inventor: John Wei-Ping Lin
  • Patent number: 5765178
    Abstract: An electronic mail system that allows a party receiving electronic mail to designate a desired format for displaying electronic mail messages. For example, the receiving party may designate that all electronic mail messages received from their boss be displayed with the title in bold and in the color blue. For further illustration, the receiving party may designate that all mail marked as high priority be displayed with an enlarged and colored title and comment section.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: June 9, 1998
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Tsuyoshi Tanaka
  • Patent number: 5765154
    Abstract: A resource management system, of the type wherein processes are applied to real resources, which are resources previously input into a computer system that performs information processing, to obtain new resources, includes a plurality of context maintaining units that respectively establish a correspondence with attributes. Each of the context maintaining units includes an attribute maintaining unit that stores in memory attributes of the respective context maintaining unit; a name analysis unit that performs name analysis on resource names using as input resource names given to the resources, to obtain name analysis results; and a name conversion unit that converts name analysis results from the name analysis unit into one of a first resource realization expression and a second resource realization expression.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: June 9, 1998
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kazunori Horikiri, Shigehisa Kawabe
  • Patent number: 5764267
    Abstract: A conduction recording head forms an image on a recording sheet by connecting return path electrodes and recording electrodes conductively through a printing and recording medium. Recording electrodes, a drive circuit and connector electrodes are all disposed integrally on a flexible insulating film as a main head part which is disposed on a rigid support member through an elastic member.
    Type: Grant
    Filed: May 17, 1996
    Date of Patent: June 9, 1998
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Eiichi Akutsu, Hiroh Soga, Shigehito Ando, Susumu Hirakata
  • Patent number: 5764227
    Abstract: A document display apparatus of the invention displays a document containing a plurality of pages in such a manner that one page lies on top of another, allowing easy and intuitive identification of the first page of the document. When a page turning command is entered through an input device, a designator specifies a page which should become the first page of the document based on page layering sequence information stored in a page data table memory and a page location calculator calculates new display locations of the individual pages so that pages to be shown behind a current page (or the page in the topmost layer) are successively displaced from the current page by an amount determined by preset page offset values (.DELTA.X, .DELTA.Y) except for the first page of which amount of displacement is increased by an additional page offset value (+.alpha.) in both the horizontal and vertical directions.
    Type: Grant
    Filed: April 18, 1996
    Date of Patent: June 9, 1998
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Hisako Ishimine
  • Patent number: 5764676
    Abstract: This invention relates to a laser array which can produce at least two independently addressable laser beams, each of which has fully index-guided buried optical waveguides. Specifically, the array is formed by a two-step impurity disordering process, which simplifies the fabrication of laser arrays and optoelectronic integrated circuits.
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: June 9, 1998
    Assignee: Xerox Corporation
    Inventors: Thomas L. Paoli, Kevin J. Beernink
  • Patent number: 5765085
    Abstract: A fixing apparatus having a fixing film for use in an electrophotographic apparatus for fusing toner images to a copy substrate, the fixing film comprising a fluorinated carbon filled fluoroelastomer, and in embodiments, the fixing film comprises an optional substrate, an optional intermediate layer provided thereon, and an outer fluorinated carbon filled fluoroelastomer layer provided on the intermediate layer.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: June 9, 1998
    Assignee: Xerox Corporation
    Inventors: Kock-Yee Law, Ihor W. Tarnawskyj, Joseph Mammino, Kathleen M. McGrane, Martin A. Abkowitz, Robert M. Ferguson, Frederick E. Knier, Jr.