Patents Assigned to Xerox
  • Color registration deviation correction method and image forming apparatus
    Patent number: 6493011
    Abstract: In a color registration deviation correction method or an image forming apparatus, a pattern image is read out, a color registration deviation amount is detected, and a correction amount of the color registration deviation is calculated. On the basis of the calculated correction amount, it is judged whether correction can be made in an interimage period. In the case where the correction can be made in the interimage period, the color registration deviation correction is made in the interimage period, and in the case where the correction can not be made in the interimage period, the color registration deviation correction is made in the two interimage periods.
    Type: Grant
    Filed: November 7, 2000
    Date of Patent: December 10, 2002
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Kohei Shioya
  • Integrated printhead
    Patent number: 6491375
    Abstract: An integrated printhead package for acoustic ink printing includes a plurality of layers. Each of the layers is stacked against one of the other layers. A reservoir is defined within the layers and contains a first fluid. One of the layers forms a plate for covering an open side of the reservoir. The plate has apertures for passing the first fluid from the reservoir to an exterior area. A passage, formed by at least one of the stacked layers, communicates with the reservoir and the exterior area. The first fluid passes through the passage. At least one of a pressure sensor and a temperature sensor are located within the layers. The pressure sensor and temperature sensor measures a pressure and temperature, respectively, of the first fluid.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: December 10, 2002
    Assignee: Xerox Corporation
    Inventor: John S. Fitch
  • Oscillating liquid level measuring apparatus
    Patent number: 6490921
    Abstract: The present invention provides an oscillating liquid level measuring apparatus includes a liquid level measuring unit 10 having: a floating member 3 floating on a surface of liquid 1 in a tank 2; a variable resistor 4 arranged o the top of the tank 2 for measuring a perpendicular displacement of the floating member 3; a transmitting member 5 extending from the floating member 3 and through the top of the tank 2 for transmitting the perpendicular displacement of the floating member 3 to the variable resistor 4; and holders 6 arranged to sandwich the transmitting members 5 for restricting the movement of the floating member 3 only in the perpendicular direction. A connection portion between the transmitting member 5 and the variable resistor 4 has a predetermined allowance 9 in the displacement direction 8 of the floating member 3.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: December 10, 2002
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Yoshihiro Hagiwara
  • Process for tuning photoreceptor sensitivity
    Patent number: 6492080
    Abstract: A process including: forming a first chlorogallium phthalocyanine (ClGaPc) in N-methyl-2-pyrrolidone (NMP) to form a ClGaPc (NMP) Type-I product; forming a second chlorogallium phthalocyanine in dimethyl sulfoxide (DMSO) to form a ClGaPc (DMSO) Type-I product; separately dry milling and then wet treating the Type-I products to form respective Type-II products; blending the Type-II products together along with a resin to form a coating mixture; and coating the mixture to form a charge generator layer in an electrostatographic imaging article.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: December 10, 2002
    Assignee: Xerox Corporation
    Inventors: Richard A. Burt, George Liebermann, Cheng-Kuo Hsiao, Ah-Mee Hor
  • Priming system for multicolor ink jet printers
    Patent number: 6491368
    Abstract: A priming system for selectively priming one of the two printheads of a multicolor ink jet printer. When one of the printheads require periodic priming, the printheads are transported to the printer's maintenance station where individual caps are moved to cover the nozzle faces of the printheads. The priming system has two individual peristaltic pumps, each one of which is connected to a respective one of the caps. The two peristaltic pumps have a single mechanical input to drive selectively one of the pumps and not the other by a positionable swing gear. Each one of the pumps is adapted to prime only one of the printheads. The swing gear engages the drive gear of one pump when the direction of rotation of the input is clockwise and the swing gear engages the drive gear of the other pump when the direction of rotation of the input is counterclockwise.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: December 10, 2002
    Assignee: Xerox Corporation
    Inventors: David Cipolla, Steven J. Dietl
  • Image forming apparatus
    Patent number: 6493009
    Abstract: An image forming apparatus, applicable to copying machines, facsimile apparatuses and printers, controls pixel positions with high precision. An image of color material is formed on the surface of an image holding drum. The surface of the image holding drum divides into a number of pixel areas, and each pixel area has an adhesive-force change portion smaller than the pixel area, where adhesive force to color material changes by a predetermined stimulus. An image-signal input unit forms an image by distribution of adhesive force to the color material on the surface of the image holding drum by inputting a stimulus corresponding to an image signal into the image holding drum. A color material supply unit supplies color material particles to the surface of the image holding drum.
    Type: Grant
    Filed: November 2, 1998
    Date of Patent: December 10, 2002
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hirokazu Mukai, Mamoru Kido, Nobuyuki Nakayama
  • Ink blotter for an ink jet printer maintenance station providing increased ink carrying capacity
    Patent number: 6491371
    Abstract: An improved ink blotter method system usable in a maintenance station of an ink jet printer including wiper blades positioned to clean the printheads and an assembly of absorbent materials to clean the wiper blades.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: December 10, 2002
    Assignee: Xerox Corporation
    Inventors: Richard H. Berg, Christopher A. O'Dell, Steven J. Dietl
  • Method and system for algorithm synthesis in problem solving
    Publication number: 20020184166
    Abstract: A method for problem solving in a computer system includes an applications module for sending a problem statement to a complexity module, which configures a solving module with configuration parameters and also determines expected problem solver behavior. The solving module selects a set of parameter configuration vectors, determines a set of search space points, performs a partial search based on the parameter configuration vectors, and determines actual problem solver behavior. The solving module then determines whether a problem solution has been found, whether to perform a solver iteration step or request a complexity module to perform an adaptation step.
    Type: Application
    Filed: June 4, 2001
    Publication date: December 5, 2002
    Applicant: Xerox Corporation
    Inventors: Warren B. Jackson, Markus P.J. Fromherz
  • Drip plate design for a solid ink printer
    Publication number: 20020180852
    Abstract: A drip plate design is provided for a solid ink color printer which reliably directs on-demand ink flow and securely retains solidified ink. The drip plate design includes a combination of one or more sized and shaped cutouts and protrusions for anchoring a solidified ink stick when the printer is not in operation and protrusions that impede downward movement of independent portions of an ink stick so that they remain in contact with a heated melt plate long enough to substantially melt, thereby inhibiting the unchecked sliding off of large separated slivers and chunks of ink during melt and delivery.
    Type: Application
    Filed: May 31, 2001
    Publication date: December 5, 2002
    Applicant: Xerox Corporation
    Inventors: Brent R. Jones, Frederick T. Mattern, Paul T. Sulliivan, Bjoern E. Brunner
  • CHARGE EMITTING PRINT HEAD FOR IMAGE FORMING SYSTEMS
    Publication number: 20020180858
    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: Application
    Filed: May 29, 2001
    Publication date: December 5, 2002
    Applicant: Xerox Corporation
    Inventors: Alexander A. Kosyachkov, Igor Kubelik, Lech Jedral, Dung Nguen, Rossitza Ivanova
  • Dynamic selection of data format conversion paths
    Publication number: 20020180755
    Abstract: A data processor identifies a source format and a destination format of data. The data processor determines whether a fast data conversion path, such as a direct lookup table, is available to convert one or more portions of the data from the source format to the destination format, and converts the data using the fast data conversion path where possible. For portions of the data not convertible by a fast data conversion path, the data processor performs a two-step conversion process in which the data is first converted from the source format to an intermediate format and then from the intermediate format to the destination format.
    Type: Application
    Filed: May 7, 2001
    Publication date: December 5, 2002
    Applicant: XEROX CORPORATION
    Inventor: Sharon Anne Krueger
  • Ink jet recording head
    Publication number: 20020180831
    Abstract: An ink jet recording head wherein a nozzle jetting ink droplets is structured of a plurality of ink jet ports 11, and the length ln [m] of an ink jet port and pitch Pn [m] are set to satisfy the conditions ln>1.2 Vd/An and Pn>1.4 dd (where Vd is the volume of ink droplets that are jetted from one individual ink jet port [m3], dd is diameter of an ink droplet [m] and An is the area of a nozzle opening [m2]); wherein the fusion phenomena of a meniscus at the rear surface of a nozzle after ink is jetted can be suppressed; and wherein the effect of a multi-port nozzle enabling re-fill time to be reduced is utilized. Further the fusion phenomena of ink jet droplets in flight after being jet expelled from a multi-port nozzle can be suppressed enabling superior quality images to be recorded.
    Type: Application
    Filed: May 7, 2002
    Publication date: December 5, 2002
    Applicant: Fuji Xerox Co., Ltd.
    Inventors: Masakazu Okuda, Yasuhiro Otsuka
  • Producing apparatus and producing method for manufacturing carbon structure
    Publication number: 20020179428
    Abstract: Apparatus for producing a carbon structure at least including two electrodes 11 and 12 having forefront portions opposed to each other, and a power supply 18 for applying a voltage between the electrodes 11 and 12 so that discharge plasma is produced in a discharge area between the electrodes 11 and 12. The apparatus for producing a carbon structure further including a magnetic field generating unit 20 to 23 for forming at least a magnetic field including multidirectional lines of magnetic force or a magnetic field including a component parallel with the traveling direction of a discharge current, in an area where the discharge plasma is generated. In addition, a method for producing a carbon structure, using such an operation.
    Type: Application
    Filed: February 25, 2002
    Publication date: December 5, 2002
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kazunori Anazawa, Hiroyuki Watanabe, Masaaki Shimizu
  • Image recording material and method for producing the same
    Publication number: 20020182520
    Abstract: An image recording material on which an image can be formed by electrophotography, and a method for producing the same. The material comprises a substrate having transparency, an image being formable by an electrophotography system on one side of the substrate, and a characteristic controlling member which is provided at a side of the substrate which is opposite to the side where the image is formed. The image is printed as a mirror image which can be viewed through the substrate. The characteristic controlling member can be provided with functions such as heat resistance, light resistance, glossiness adjustment and the like. Thus, an image of high quality having sufficient heat resistance and light resistance and good visibility, even for outdoor use, can be formed, and manufacture thereof is easy.
    Type: Application
    Filed: December 3, 2001
    Publication date: December 5, 2002
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Kaoru Torikoshi
  • Adaptive constraint problem solving method and system
    Publication number: 20020184176
    Abstract: A method for problem solving in a computer system includes an applications module for sending a problem statement to a complexity module. The complexity module configures a solving module with configuration parameters and also determines expected solver behavior. A solving module determines actual solver behavior, determines whether a problem solution has been found, and determines whether to perform a solver iteration step or to request a complexity module to perform an adaptation step.
    Type: Application
    Filed: June 4, 2001
    Publication date: December 5, 2002
    Applicant: Xerox Corporation
    Inventors: Markus P.J. Fromherz, Warren B. Jackson
  • Display devices with organic-metal mixed layer
    Publication number: 20020180349
    Abstract: A display device composed of: (a) a cathode; (b) an anode; (c) a luminescent region between the cathode and the anode; and an optional region adjacent one of the electrodes, wherein at least one of the cathode, the anode, the luminescent region, and the optional region includes a metal-organic mixed layer composed of: (i) an inorganic metal containing material, (ii) an organic material, and (iii) optionally, at least one component selected from the group consisting of metals, organic materials, and inorganic materials.
    Type: Application
    Filed: April 5, 2002
    Publication date: December 5, 2002
    Applicant: Xerox Corporation
    Inventors: Hany Aziz, Yoon-Fei Liew, Zoran D. Popovic, Nan-Xing Hu, Anthony J. Paine
  • Organic electroluminescence device
    Publication number: 20020182440
    Abstract: An organic electroluminescence device contains a hole transporting polyesters represented by the following formulae (I-1) or (1-2): 1
    Type: Application
    Filed: October 11, 2001
    Publication date: December 5, 2002
    Applicant: Fuji Xerox Co., Ltd
    Inventors: Mieko Seki, Daisuke Okuda, Hirohito Yoneyama, Hidekazu Hirose, Kiyokazu Mashimo, Takeshi Agata, Katsuhiro Sato
  • Secure data file erasure
    Publication number: 20020181134
    Abstract: A process that ensures the destruction of data files a user wishes to completely erase from a storage medium, such as a hard drive or removable disk. A system administrator can select a quantity of and pattern to be used in overwrites of the data file so that no one can recover the data from the storage medium. In embodiments, a graphical user interface (GUI) can be provided to allow user triggering of and parameter setting for the process. The GUI can be implemented at a device in which the storage medium is a component or can be implemented in a device driver GUI on a personal computer in communication with the device.
    Type: Application
    Filed: June 4, 2001
    Publication date: December 5, 2002
    Applicant: Xerox Corporation
    Inventors: Keith G. Bunker, Edward P. deJong
  • Imaging apparatus having multiple linear photosensor arrays with different spatial resolutions
    Publication number: 20020181033
    Abstract: In an imaging apparatus such as a scanner or digital camera, a photosensitive device includes multiple linear arrays of photosensors. One of the arrays has a higher spatial resolution than other arrays. The high-resolution array is filtered to detect different portions of the color spectrum than the low-resolution arrays.
    Type: Application
    Filed: May 29, 2001
    Publication date: December 5, 2002
    Applicant: Xerox Corporation
    Inventors: Jagdish C. Tandon, Keith T. Knox, Robert R. Buckley
  • Image forming apparatus
    Publication number: 20020181968
    Abstract: An print head device 02, which includes plurality of image carrying bodies, a plurality of developing units, a plurality of charging units, and at least one intermediate transfer unit, is constructed as a unit assembly, and the unit assembly is inserted into and removed from a image forming apparatus main body 01. The image forming apparatus contains a mechanism that the image carrying bodies are minutely movably supported by a frame of the unit assembly with a gap being located therebetween, and are positioned and fixed to a housing of the image forming apparatus main body.
    Type: Application
    Filed: March 15, 2002
    Publication date: December 5, 2002
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Naomasa Okimura, Takeshi Okoshi, Hiromitsu Koizumi