Patents Assigned to Xerox
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Publication number: 20030202078Abstract: An ink stick for use in a solid ink feed system of a phase change ink jet printer includes an ink stick body. Nesting elements are formed in the ink stick body for nesting the ink stick body with an adjacent ink stick body. One end surface of the ink stick body has a projecting nesting element, and the opposite end surface has a recessed nesting element having a complementary shape and position. When two ink sticks with such nesting elements abut one another in a feed channel of a solid ink feed system, the projecting nesting element of one ink stick fits into the recessed nesting element of the adjacent ink stick to reduce movement of the ink sticks relative to each other, and to reduce skewing of the ink sticks in the feed channel.Type: ApplicationFiled: April 29, 2002Publication date: October 30, 2003Applicant: Xerox CorporationInventors: Brent R. Jones, Frederick T. Mattern, Barry D. Reeves, Timothy L. Crawford, James D. Rise
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Patent number: 6637849Abstract: The invention provides a system and method for reducing or eliminating kinks in ink limit conversion processes. In particular, an adjusted ink limit conversion process is provided which approaches the limit in a smooth fashion. Moreover, extrapolated values in the input, values that are outside of a predetermined range, are handled in a smooth fashion. The extrapolated values are used to avoid kinks in the conversion process at the end bounds of the range. Ink limiting is performed gradually as the system approaches the ink limit, avoiding sudden changes in the slope of the system response characteristics. If one of a plurality of colors reaches zero ink, the remaining colors are decreased by multiplying them by a factor less than one. Accordingly, the colorant ratio is maintained, and hue shifts are reduced.Type: GrantFiled: January 16, 2002Date of Patent: October 28, 2003Assignee: Xerox CorporationInventor: Martin S. Maltz
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Patent number: 6639292Abstract: A UV light sensing element has at least a first electrode and a sensor. The first electrode has a semiconductor containing at least one element selected from Al, Ga and In together with nitrogen or oxygen, and the sensor layer has a semiconductor containing at least one element selected from Al, Ga and In together with nitrogen. A longer wavelength end of an absorption spectrum for the first electrode is located at a position nearer to a shorter wavelength side than a longer wavelength end of an absorption spectrum for the sensor.Type: GrantFiled: March 11, 2002Date of Patent: October 28, 2003Assignee: Fuji Xerox Co., Ltd.Inventor: Shigeru Yagi
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Patent number: 6639692Abstract: A system and method of processing segmentation tags is disclosed. In accordance with the present invention, a method for processing segmentation tags that receives blocks of segmentation tags each of which has an associated block level tag that is representative of the segmentation tags within the block. The method positions a neighborhood window about a current block and a neighboring block and cleans a target segmentation tag within the current block based upon the block level tags within the neighborhood window using a set of tag cleaning rules.Type: GrantFiled: September 9, 1999Date of Patent: October 28, 2003Assignee: Xerox CorporationInventors: Xing Li, Ramesh Nagarajan, Francis K. Tse
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Patent number: 6639425Abstract: An electronic driver circuitry for an RF switch diode D1 used in Acoustic Ink Jet Printing (AIP) systems that compensates and cancels out undesired variations and non-idealities is disclosed. The electronic driver circuitry consists of a second RF switch diode D2 used as a compensation diode that is placed in close physical proximity to the RF switch diode D1 used for RF switching. To compensate for undesirable variations in the RF switch diode D1, the driver circuitry is designed such that the current in the RF switch diode D2 is adjusted in an opposite direction to cancel the unwanted variations of the RF switch diode D1.Type: GrantFiled: December 26, 2001Date of Patent: October 28, 2003Assignee: Xerox CorporationInventor: Mostafa R. Yazdy
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Patent number: 6637666Abstract: An edge coding scheme for an encoded sheet material includes an offset mark located at an offset distance from a reference mark on the edge of the sheet material and a plurality of equally spaced clock marks disposed along the edge, such that the offset distance can be approximated by the product of the number of clock marks between the reference mark and the offset mark times the distance between successive clock marks. Another embodiment of the edge coding scheme includes coincidence between a first plurality of equally spaced apart clock marks and a second plurality of equally spaced Vernier marks, wherein the second plurality is less than the first plurality.Type: GrantFiled: February 19, 2002Date of Patent: October 28, 2003Assignee: Xerox CorporationInventor: Jean-Luc Meunier
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Patent number: 6640010Abstract: An image processing technique for selecting a text region from an image is described. Character and formatting information for each word in the image is used to determine an active region for each word in the image. For a preferred embodiment of the present invention, the character and formatting information is derived during optical character recognition (OCR). A first and last word within a selected text region is identified based on at least one active region associated with at least one word within the selected text region. Using the first and last words within the selected text region, all words within the selected text region are identified. An image of the selected text region may be displayed. Text contained within the selected text region may be copied to an application program.Type: GrantFiled: November 12, 1999Date of Patent: October 28, 2003Assignee: Xerox CorporationInventors: Mauritius Seeger, Christopher R. Dance, Stuart A. Taylor, William M. Newman
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Patent number: 6640068Abstract: A system for handling of a photoreceptor belt by distributing pressure points on the belt over a large area such that physical damage to the photoreceptor belt during handling thereof is minimized. The system includes a photoreceptor belt and a handling belt. The outer surface of the handling belt is positioned under and in contiguous relation to the inside surface of the photoreceptor belt. An edge of the handling belt includes at least one tab member projecting therefrom. Also there is a taper projecting along the edge extending inwardly, the tab member and the taper adapted to assist the handling belt to be positioned within the photoreceptor belt.Type: GrantFiled: November 9, 2001Date of Patent: October 28, 2003Assignee: Xerox CorporationInventors: Moritz P. Wagner, Richard Shoemaker
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Patent number: 6638677Abstract: A process comprising heating a latex, a colorant dispersion, a polytetrafluoroethylene dispersion, and an organo metallic complexing component.Type: GrantFiled: March 1, 2002Date of Patent: October 28, 2003Assignee: Xerox CorporationInventors: Raj D. Patel, Valerie M. Farrugia, Daryl Vanbesien, Edward G. Zwartz
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Patent number: 6640059Abstract: In an apparatus, such as a fuser for xerographic printing, wherein sheets pass through a nip formed by two moving rollers, a substantially enclosed, effectively funnel-shaped path is defined to direct sheets from the nip to a subsequent processing station. When a jam condition occurs in the path, a movable surface defining the path moves to increase a size of the path. The increase in size prevents impaction of subsequent sheets entering the path, and also facilitates manual jam clearance.Type: GrantFiled: December 20, 2001Date of Patent: October 28, 2003Assignee: Xerox CorporationInventors: Paul M. Fromm, Richard C. Benton
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Patent number: 6640061Abstract: A sensing system for detecting a full condition within a waste developer system, the sensing system including a developer waste container for receiving and holding waste developer material comprising toner and carrier deposited therein from a developer system; a sensor assembly mounted exterior to the developer waste container, the sensor including a reed switch being responsive to the level of material in the developer waste container when the material in the developer waste container reaches a predetermined level.Type: GrantFiled: October 11, 2001Date of Patent: October 28, 2003Assignee: Xerox CorporationInventors: Thomas E. Higgins, Paul W. Burnham, William H. Wayman
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Patent number: 6639669Abstract: In a color analysis method in which sheets with multiple different color printed test patches are moved relative to a color analyzing spectrophotometer, and in which fiducial marks are printed adjacent to respective test patches and optically detected by a fiducial mark detector to provide a triggering system for the respective test patch analysis, there is provided automatic diagnostic testing of the spectrophotometer and the fiducial mark triggering system, including automatically generating special test sheets, some of which may include test areas of varying density black.Type: GrantFiled: September 10, 2001Date of Patent: October 28, 2003Assignee: Xerox CorporationInventors: Fred F. Hubble, III, Tonya L. Love, Lalit K. Mestha, Gary W. Skinner, Dennis M. Diehl, Robert E. Grace, Eric Jackson, Yao Rong Wang
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Patent number: 6637876Abstract: 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: GrantFiled: May 9, 2002Date of Patent: October 28, 2003Assignee: Fuji Xerox Co., Ltd.Inventor: Takeshi Hori
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Patent number: 6640083Abstract: An intermediate platen cover is provided between a platen and a platen cover of a photocopying machine to prevent displacement of a document on the platen. The intermediate platen cover is transparent to allow the user to see placement of the document and to not interfere with the background lower surface of the platen cover during photocopying.Type: GrantFiled: January 15, 2002Date of Patent: October 28, 2003Assignee: Xerox CorporationInventors: Sally A. Conard-White, Deborah G. AuClair
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Patent number: 6637869Abstract: An ink jet type printer head is provided which can be simply assembled and in which malfunctions such as leak of ink, peeling-off of members or the like making up the ink jet type printer head are reduced. Grooves going around along a corresponding position inside a space portion of each of pressure chambers are formed on a surface of one piece of a piezoelectric element plate to partition the piezoelectric element plate and each portion of the piezoelectric element plates partitioned by these grooves acts as a piezoelectric element for each of the pressure chambers. Since a non-moving section having the same thickness as that of the piezoelectric elements among piezoelectric elements is formed, a vibrating plate can be firmly fixed to pressure chamber plate containing a partitioning wall portion between pressure chambers.Type: GrantFiled: June 26, 2001Date of Patent: October 28, 2003Assignee: Fuji Xerox Co. LtdInventor: Shinji Seto
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Patent number: 6640075Abstract: An apparatus for developing a latent image recorded on an imaging surface with toner, including: a developer housing including a reservoir for storing a supply of toner; a donor member for transporting toner on an outer surface of the donor member to a development zone; a purging system, adjacent to the donor member, for removing toner the donor member and the reservoir.Type: GrantFiled: October 30, 2002Date of Patent: October 28, 2003Assignee: Xerox CorporationInventors: Scott D. Weber, Robert W. Phelps, Kristine A. German, Dale R. Mashtare
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Patent number: 6638383Abstract: A process for seaming seamed component for use in seaming members useful in electrostatographic, contact electrostatic, digital and other like machines, including: a) compounding an adhesive; b) forming the adhesive in contact with a first side of the seam and the mutually mating members; c) contacting the adhesive and first side of the seam to a first heated clamp; d) contacting the second side of the seam to a second heated clamp; e) subjecting the adhesive in contact with the mutually mating members to a first cure at a first temperature to form a cured adhesive; and f) subjecting the cured adhesive to a second cure at a second temperature to form a dual-cured adhesive, wherein the second temperature is higher than the first temperature.Type: GrantFiled: April 11, 2001Date of Patent: October 28, 2003Assignee: Xerox CorporationInventors: Ihor W. Tarnawskyj, Joseph A. Swift, Christopher P. Manos, Theodore Lovallo, Gregory Toth
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Publication number: 20030198127Abstract: The present invention relates to a high intensity blending method for producing surface modifications to electrophotographic and related toner particles. The improved method utilizes an improved blending tool comprising a shank having riser members at each end, such risers being angled to the axis of the shank between 10 and 16 degrees and having a height dimension greater than 20 percent of the diagonal dimension of the shank.Type: ApplicationFiled: May 28, 2003Publication date: October 23, 2003Applicant: Xerox CorporationInventors: Samir Kumar, Juan A. Morales-Tirado, D. Paul Casalmir, Scott M. Silence, Ying S. Molisani, James M. Proper, Jerry G. Owens, Geraldine Baer
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Publication number: 20030197729Abstract: Multiple users access a collaborative data-sharing system during a data-sharing event. Each user can establish the level of sharing to be allowed with each other user and filtering criteria for filtering the data before it is provided to the other users. Data can be extracted from a number of different sources, including data input by other users and/or previously created information sources. For example, slides from a presentation on a similar topic may be identified and included by a user as a potential source of information to be used by other users. Shared data can be displayed on devices used by users to communicate with the collaborative data-sharing system. A user can selected data provided by the collaborative data-sharing system, which was obtained from the data input by other users and/or from the identified additional data sources and added to that user's data as data entered by that user.Type: ApplicationFiled: April 19, 2002Publication date: October 23, 2003Applicant: FUJI XEROX CO., LTD.Inventors: Laurent Denoue, Patrick Chiu, Tohru Fuse
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Publication number: 20030197820Abstract: A reflective-type multi-color display device is capable of obtaining a vivid and bright multi-color display with less display layers, and therefore, with a state where a parallax is decreased and a cost of the device can be reduced. Specifically, the display device of the present invention includes a cell 51 having a display layer 31 comprising a right-handed cholesteric liquid crystal which selects and reflects blue, a cell 53 having a display layer 33 comprising a left-handed cholesteric liquid crystal which selects and reflects green, a cell 57 having a display layer 37 comprising a right-handed cholesteric liquid crystal which selects and reflects yellow and a cell 55 having a display layer 35 comprising a left-handed cholesteric liquid crystal which selects and reflects red, these layers being laminated in this order from the observation side. A color filter 43 which transmits red and absorbs the other color light is provided between the cell 57 and the cell 55.Type: ApplicationFiled: May 9, 2003Publication date: October 23, 2003Applicant: FUJI XEROX CO., LTD.Inventors: Naoki Hiji, Shigeru Yamamoto, Takehito Hikichi, Teiichi Suzuki