Abstract: There is provided a capacitive load driving circuit which applies a driving signal to a capacitive load. The driving circuit includes: an operational amplifier outputting a difference signal between signals from an inverting input terminal and a non-inverting input terminal, and setting a loop gain; a pulse width modulator pulse-width-modulating the difference signal outputted by the operational amplifier, and outputting resultant digital signal; a digital voltage amplifier amplifying a voltage of the digital signal; a first filter smoothing a digital signal from the digital voltage amplifier, and supplying a smoothed signal to the capacitive load as the driving signal; an impedance converting circuit converting an impedance of an output signal of the first filter; and a first feedback circuit feeding-back the driving signal, which is outputted from the first filter, to the inverting input terminal of the operational amplifier via the impedance converting circuit.
Abstract: A method and apparatus for measuring the presence or absence of reaction between a first and second material of interest by measuring osmotic pressure changes in a reaction cell. The reaction cell is capable of measuring the small changes in pressure that occur due to osmotic pressure shifts during a catalytic or binding reaction at species concentrations down to approximately 10?7 M.
Type:
Grant
Filed:
August 25, 2009
Date of Patent:
December 14, 2010
Assignee:
Xerox Corporation
Inventors:
Francisco E. Torres, Karl Littau, Eric Shrader
Abstract: A polyester resin emulsion includes crosslinked polyester resin in an emulsion medium, the crosslinked polyester resin having a degree of crosslinking of from about 0.1 percent to about 100 percent. The emulsion can be formed by solvent flashing a mixture of a polyester resin, an initiator, a solvent, and an emulsion medium, wherein the crosslinked polyester resin has a degree of crosslinking of from about 0.1 percent to about 100 percent.
Type:
Grant
Filed:
January 25, 2007
Date of Patent:
December 14, 2010
Assignee:
Xerox Corporation
Inventors:
Enno E. Agur, Daryl W. Vanbesien, Valerie M. Farrugia, Guerino G. Sacripante, Maria N. V. McDougall, Edward G. Zwartz
Abstract: A xerographic marking device includes a media transport path and at least one two-color image-on-image (IOI) drum module. Each two-color IOI drum module includes in a process order around a photoreceptor: a) a first charging unit; b) a first exposure unit; c) a first development unit; d) a second charging unit; e) a second exposure unit; and f) a second development unit, wherein the intermediate transfer unit receives a first toned image and a second toned image from the photoreceptor in a single transfer and transfers those toner images to print media to produce a toned image on print media. In various embodiments, the xerographic marking device is modular and includes a common paper transport module having a cavity and a marking engine sized to fit within the cavity.
Type:
Application
Filed:
June 4, 2009
Publication date:
December 9, 2010
Applicant:
XEROX CORPORATION
Inventors:
William J. NOWAK, Dale R. MASHTARE, Thomas C. HOLLAR, Daniel W. COSTANZA, Robert P. LOCE
Abstract: This disclosure provides a method, apparatus, and system for registering the transfer of an image from a belt to a media substrate associated with a printing device. Specifically, the exemplary methods use a ROS master clock and belt location sensor located downstream of a belt tensioning device to generate a reg sync signal to initiate transfer of the image.
Type:
Application
Filed:
June 3, 2009
Publication date:
December 9, 2010
Applicant:
XEROX CORPORATION
Inventors:
David Mark Kerxhalli, Siddharth Rajiv Inamdar, Paul Eugene Musicant
Abstract: A print system has a print engine, a presence detector and a controller. The controller receives the signal from the detector, accesses past usage data, and combines the signal and the usage data to adjust operations of the print engine.
Abstract: What is disclosed is a novel method for reducing errors in IOP registration of a digital document system. In one embodiment, a number of digital pages (10, for example) are received in the image path. For each of a process and lateral direction of a first side of each digital image, a total amount of IOP registration error to be corrected is determined. A portion of the total IOP registration error is estimated that is separable error. Each of the estimated separable errors are subtracted from the total IOP registration error to obtain an amount of non-separable error in each respective direction. The non-separable error values are averaged to obtain an error value for each direction per-side. The error values are compensated for in their respective directions per-side by adjustments to the device in an amount which is equal in magnitude and in an opposite direction to the error.
Abstract: A process for making toner particles is provided. In embodiments, a suitable process includes adding a defoamer to an emulsion utilized to form toner particles. Utilization of the defoamer allows for a reduction in the overall aggregation/coalescence cycle time and slurry viscosity, while producing a toner with improved GSDs, low coarse and target circularities.
Type:
Application
Filed:
July 14, 2010
Publication date:
December 9, 2010
Applicant:
XEROX CORPORATION
Inventors:
Kimberly D. Nosella, Allan K. Chen, Zhen Lai, Zhaoyang Ou, Daryl W. Vanbesien
Abstract: A method and apparatus for predicting blade life in an image production device is disclosed. The method may include retrieving a number of print starts, a number of print cycles, a wear rate for print starts, and a wear rate for print cycles from a memory, calculating wear of a cleaning blade based on the number of print starts, the number of print cycles, the wear rate for print starts, and the wear rate for print cycles, wherein the wear rate for print starts and the wear rate for print cycles are weighed differently, determining if the calculated wear of the cleaning blade exceeds a predetermined threshold, wherein if it is determined that the calculated wear of the cleaning blade exceeds a predetermined threshold, sending a notification that the cleaning blade needs to be replaced.
Type:
Application
Filed:
June 9, 2009
Publication date:
December 9, 2010
Applicant:
XEROX CORPORATION
Inventors:
Bruce Earl Thayer, Aaron Michael Burry, Michael F. Zona
Abstract: This is a take-up roller assembly that is connected to paper exiting a scanner and collects this exiting paper. The take-up roller assembly is moved by movement of paper entering the scanner together with a paper pulling structure that is located in the scanner. This take-up roller assembly is uniquely suitable for use in a wide format imaging system that uses a scanner.
Type:
Application
Filed:
June 4, 2009
Publication date:
December 9, 2010
Applicant:
XEROX CORPORATION
Inventors:
CRAIG W. MARTIN, MARK A. NENNI, GUIDO DIMATTEO, RONALD DEWS, JR.
Abstract: A display medium includes: a pair of substrates; an electrode arranged between the pair of substrates and on one substrate of the pair of substrates; a multilayered structure including plural color-forming layers arranged between one substrate of the pair of substrates and the electrode, each of the plural color-forming layers containing an electroconductive sheet-like porous body and an electrochromic dye which is retained by the porous body and is reversibly colored or decolored by at least one of an electrochemical oxidation reaction or a reduction reaction, and the colors when the electrochromic dyes in the respective plural color-forming layers are colored being different from one another; and an electrolytic material included in a region between the pair of substrates.
Type:
Application
Filed:
November 12, 2009
Publication date:
December 9, 2010
Applicant:
FUJI XEROX CO., LTD.
Inventors:
Satoshi TATSUURA, Ryojiro AKASHI, Naoki HIJI
Abstract: In accordance with the present teachings, there are composite materials, fuser members comprising the composite materials, and methods of making the composite materials. In various embodiments, the composite material can include a polyimide resin having a thermal conductivity and a plurality of passivated aluminum nitride particles substantially uniformly dispersed in the polyimide resin to provide the composite material with a thermal conductivity of about 0.4 W/mK to about 2.5 W/mK, and wherein each of the plurality of passivated aluminum nitride particles can include a passivation layer disposed over an aluminum nitride particle core to inhibit oxidation and thermal degradation of a surface of the aluminum nitride particle core.
Type:
Application
Filed:
June 5, 2009
Publication date:
December 9, 2010
Applicant:
XEROX CORPORATION
Inventors:
David J. GERVASI, Matthew M. Kelly, Santokh Badesha
Abstract: A process and system for making a resin emulsion suitable for use in forming toner particles including a silicone free anti-foam agent to control foam during formation of a polyester dispersion.
Type:
Application
Filed:
June 8, 2009
Publication date:
December 9, 2010
Applicant:
Xerox Corporation
Inventors:
Zhaoyang OU, Robert D. BAYLEY, Zhen LAI, Rashid MAHMOOD, David R. KURCEBA, John ABATE, Shigang QIU, Chieh-Min CHENG
Abstract: A scanner enables full productivity and individual image size detection, without user intervention for mixed size originals in both simplex and duplex scanning modes. The scanner provides high-productivity single pass scanning while preserving the image size for each of the document scanned. In addition, the scanner may support duplex scanning by adding a second image sensor, for example, in the document handler. Methods of scanning are also provided.
Type:
Application
Filed:
June 9, 2009
Publication date:
December 9, 2010
Applicant:
XEROX CORPORATION
Inventors:
Aron Nacman, Seth H. Groder, John C. Guarrera, Dawn Marie LaPietra, Whynn Victor Lovette, Daniel A. Mohabir, John F. Seward
Abstract: Disclosed herein is a method for detecting thin lines in image data. The method is performed by a processor to process contone image data. The processing includes thresholding a window of pixels using a first set of thresholds established in the contone domain, and then counting and thresholding the binary pixels using a second set of thresholds. The processing in the contone and binary domain are used to determine if a thin line exists and if a pixel of interest in the window is an edge pixel that is part of a thin line. The disclosed method produces better quality output images and reduces the addition of false lines in an image.
Type:
Application
Filed:
June 8, 2009
Publication date:
December 9, 2010
Applicant:
XEROX CORPORATION
Inventors:
Peter McCANDLISH, Xing LI, Ryan METCALFE, Barbara FARRELL
Abstract: What is disclosed is a novel system and method for analyzing multi-dimensional cluster data sets to identify clusters of related documents in an electronic document storage system. Digital documents, for which multi-dimensional probabilistic relationships are to be determined, are received and then parsed to identify multi-dimensional count data with at least three dimensions. Multi-dimensional tensors representing the count data and estimated cluster membership probabilities are created. The tensors are then iteratively processed using a first and a complementary second tensor factorization model to refine the cluster definition matrices until a convergence criteria has been satisfied. Likely cluster memberships for the count data are determined based upon the refinements made to the cluster definition matrices by the alternating tensor factorization models.
Abstract: A computer readable medium storing a program causing a computer to execute a process for electronic payment, the process includes: receiving a job instruction regarding image processing; calculating a fee charged according to content of the received job instruction; execute a process for an electronic payment corresponding to the calculated fee before executing a job which is based on the job instruction; executing the job based on the job instruction after the execution of the process for the electronic payment; and outputting information of a refund when the execution of the job based on the job instruction is interrupted.
Abstract: A computer implemented tactile user interface (TUI) and a method of manipulating objects with a virtual magnet are provided. The TUI includes a display comprising a touch-screen. The display is configured for displaying a set of graphic objects, each graphic object representing a respective one of a set of items, such as documents, e.g., text documents or images. A virtual magnet is caused to move on the display, in response to touching on the touch-screen, e.g., by dragging a finger or other implement across. The magnet is associated with a particular function command such that a subset of the graphic objects exhibits a response to the virtual magnet (e.g., is caused to move, relative to the virtual magnet or exhibits another visible response), each graphic object in the subset moving or otherwise responding as a function of an attribute of the underlying item represented by the graphic object.
Type:
Application
Filed:
June 8, 2009
Publication date:
December 9, 2010
Applicant:
Xerox Corporation
Inventors:
Caroline Privault, Jacki O'Neill, Jean-Michel Renders, Victor Ciriza, Yves Hoppenot, Gregory Bauduin, Ana Fucs, Ye Deng, Gregoire Gerard, Mathieu Knibiehly