Patents Assigned to Xerox
  • Patent number: 8014714
    Abstract: Fusers, printing apparatuses and methods of fusing toner on media are disclosed. An embodiment of a fuser for heating media includes a fuser roll including an outer portion having a first outer surface; a voltage source connected to the outer portion and adapted to supply voltage to the outer portion to heat the first outer surface; a pressure roll having a second outer surface; and a nip between the first and second outer surfaces. The first and second outer surfaces are adapted to contact a medium at the nip.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: September 6, 2011
    Assignee: Xerox Corporation
    Inventors: Steven Donald, Christopher L. Bradley, Fred Johnson, Thomas Simpson, Robert Arnold
  • Patent number: 8014048
    Abstract: An image forming device including: a platen glass on which a document is placed; a platen cover that presses and retains the document placed on the platen glass; an engagement portion provided at a side surface of the platen cover; a link component attached to a side surface of the device main body to be movable in a substantially vertical direction; a groove portion provided at an upper end portion of the link component, that engages with the engagement portion when the link component is moved substantially upward from a housed position thereof, whereby the platen cover opens or closes due to movement of the link component, and that does not engage with the engagement portion when the link component is at the housed position; and an operating portion provided to be positioned beneath the platen cover, for moving the link component in the substantially vertical direction, is provided.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: September 6, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hideo Koiwai, Kazuhiro Gotoh
  • Patent number: 8011652
    Abstract: A sheet feed device includes an air flow generating part that generates an air flow for floating a sheet; a feed member that feeds a sheet by rotating, while applying a load to the top one of sheets stacked; and a transport condition sensing unit that is positioned not to obstruct an air flow generated by the air flow generating part and senses a transport condition of a sheet fed by the feed member.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: September 6, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kazuyuki Tsukamoto, Shin Takeuchi, Minoru Ohshima, Yoshinari Iwaki, Takao Furuya, Kaoru Yoshida
  • Patent number: 8012254
    Abstract: A nanoscale pigment particle composition includes an organic benzimidazolone pigment, and a sterically bulky stabilizer compound, wherein the benzimidazolone pigment associates non-covalently with the sterically bulky stabilizer compound that is a substituted pyridine derivative; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale pigment particles.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: September 6, 2011
    Assignees: Xerox Corporation, National Research Council of Canada
    Inventors: Rina Carlini, Darren Andrew Makeiff
  • Patent number: 8013868
    Abstract: A color processing apparatus converts a target M-dimensional color signal in an input color space into an N-dimensional output color signal in an output color space. M and N are natural numbers and N>M. The apparatus includes a first calculation unit and a second calculation unit. The first calculation unit uniquely calculates (N?M) colorants of the converted output color signal from the target color signal with using plural color-signal pairs. In each pair, corresponding one of the (N?M) colorants of an output color signal in the output color space are associated with an input color signal in the input color space. The second calculation unit calculates the M colorants of the converted output color signal from the target color signal and the (N?M) colorants of the converted output color signal.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: September 6, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Makoto Sasaki
  • Patent number: 8014035
    Abstract: What is disclosed is a novel system and method for encoding/decoding data in a cover contone image via halftone dot orientation modulation. Arrays of halftone threshold values are used to determine a desired orientation, e.g. 0/90°+/?45° for a given single data value of the original message to be embedded. Message data is embedded as a function of halftone dot orientation. Detection modeling of the print-scan process enables the determination of dot orientation from the image scan via statistically motivated image moments. A probabilistic model of the print-scan channel conditions received moments on input orientation. Density values of the received moments are used to determine dot orientation for each halftone cell. The embedded data is retrieved based on the determined orientations. The present method is applicable to areas of data embedding, document security, and the like.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: September 6, 2011
    Assignee: Xerox Corporation
    Inventors: Vishal Monga, Gaurav Sharma, Orhan Bulan
  • Patent number: 8014617
    Abstract: A decoding apparatus includes a random number generating section and a decoding section. The random number generating section generates random numbers according to distribution of original data corresponding to respective quantization indexes. The decoding section generates decoded data on a basis of the random numbers generated by the random number generating section.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: September 6, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Shunichi Kimura
  • Patent number: 8014255
    Abstract: A holographic recording apparatus is provided and includes: a signal light generation section that generates signal light modulated according to digital data; a reference light generation section that generates reference light modulated by means of a pixel pitch; a adding section that adds, in proximity to a light-convergence position where the signal light and the reference light come close to each other or overlap each other, a low-order component of the signal light obtained by Fourier transform and a high-order component of the reference light obtained by Fourier transform, the high-order component of the reference light having a spatial frequency region differing from that of the low-order component of the signal light; and an illumination optical system that irradiate an optical recording medium with the added signal and reference light.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: September 6, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Katsunori Kawano, Makoto Furuki, Jiro Minabe
  • Patent number: 8014705
    Abstract: A developing device includes: a developer supporter that includes: a magnet member that has a plurality of magnetic poles; and a cylinder member; and a thickness regulation member wherein, of the plurality of the magnetic poles, a magnetic pole, which is placed at a position nearest to the thickness regulation member downstream in a rotation direction of the cylinder member from the thickness regulation member, has a maximum position of a normal magnetic flux density distribution, and the maximum position is placed outside the area of angle ? downstream in the rotation direction of the cylinder member from the thickness regulation member, and wherein the diameter of the cylinder member is D, the projection width is W in a case where the thickness regulation member is projected onto the surface of the cylinder member, and the angle ? is 180×W/(D×?).
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: September 6, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Takuji Matsumoto, Kiyoshi Sakoh, Toyohiko Awano
  • Patent number: 8015050
    Abstract: There is provided an operation supporting apparatus including a memory portion that stores characteristics of an operation to be multiplexed, and a determination portion that determines appropriateness of multiple operations to be multiplexed on the basis of the characteristics thereof stored in the memory portion.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: September 6, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Akinori Komura, Yoshifumi Matsunaga, Kazuo Shibuta, Hideto Yuzawa, Tomokazu Yago, Hiroyuki Hattori
  • Patent number: 8013971
    Abstract: A display medium includes: a pair of substrates that have light transmittance; electrode members that are respectively formed on the opposing surfaces of the substrates, have light transmittance, and are capable of carrying an electric current; a display member that is interposed between the electrode members and displays display information when the electric current is supplied; a terminal portion provided at one electrode member; a reinforcing portion that has electrical conductivity and is joined to the terminal portion; and a mounted electrode that has electrical conductivity and is joined to the terminal portion by a joining material that has, after curing, a cohesive force larger than that of the reinforcing portion. The area of a reinforcing joining region of the terminal portion to which the reinforcing portion is joined is smaller than the area of a mounted joining region of the terminal portion to which the joining material is joined.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: September 6, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Motohiko Sakamaki, Masaaki Araki, Takehito Hikichi, Koichi Haga, Mamoru Fujita
  • Patent number: 8015126
    Abstract: In a feature filtering approach, a set of relevant features and a set of training objects classified respective to a set of classes are provided. A candidate feature and a second feature are selected from the set of relevant features. An approximate Markov blanket criterion is computed that is indicative of whether the candidate feature is redundant in view of the second feature. The approximate Markov blanket criterion includes at least one dependency on less than the entire set of classes. An optimized set of relevant features is defined, consisting of a sub-set of the set of relevant features from which features indicated as redundant by the selecting and computing are removed.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: September 6, 2011
    Assignee: Xerox Corporation
    Inventors: Boris Chidlovskii, Loic Lecerf
  • Patent number: 8013282
    Abstract: An imaging system, such as for recording images as digital data, comprises a plurality of imaging chips. Each chip includes a plurality of imaging elements; a data-in input, the data-in input accepting control data of a first type and control data of a second type, the control data of each type having an effect on at least one operational aspect of the imaging elements; and a selection input, the selection input selectably causing the imaging chip to ignore control data in the data-in input. A data-in line is common to the data-in input of all imaging chips. By controlling the selection input to all chips, the chips can be loaded with control signals in parallel, or in serial, with control data specifically intended for each chip.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: September 6, 2011
    Assignee: Xerox Corporation
    Inventor: Scott L Tewinkle
  • Publication number: 20110210504
    Abstract: An apparatus (100) and method (300) for media hold down transport air flow in an image production device is disclosed. The apparatus can include a media transport belt (110) configured to transport media sheets (105) in a process direction (116). The media transport belt can include a plurality of belt apertures (115) arranged along a cross-process direction (118), where the cross-process direction is perpendicular to the process direction. The plurality of belt apertures can be configured to conduct air to secure the media sheets on the media transport belt. The apparatus can include a vacuum plenum assembly (120). The vacuum plenum assembly can include a plurality of plenum apertures (125) arranged along the cross-process direction. The plurality of plenum apertures can be configured to conduct air through at least some of the plurality of belt apertures.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 1, 2011
    Applicant: XEROX CORPORATION
    Inventor: Paul J. DeGRUCHY
  • Publication number: 20110211230
    Abstract: An image processing method generates a halftone image by forming a halftone dot represented by a set of one or plural output dots corresponding to an intensity of an input image signal while making a part of the dots constituting the halftone dot to be an actual non-output dot so as to reduce an amount of a coloring material of a halftone-dot portion. The image processing method includes holding in a predetermined storage medium halftone-dot profile data for forming the halftone dot corresponding to the intensity of the image signal and gap-size profile data representing a size of a set of the non-output dot; and generating the halftone dot comprising a gap having a size based on the gap-size profile data, a size of the halftone dot being based on the halftone-dot profile data.
    Type: Application
    Filed: May 12, 2011
    Publication date: September 1, 2011
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yoshifumi TAKEBE, Akira ISHII
  • Publication number: 20110211877
    Abstract: According to aspects of the embodiments there is provided a cassette cleaning web having an agent metering tube that can apply oil via a drip pipe to a web as it enters a nip within the fusing surface. Dispensing the oil as it enters the nip increases the transportation and the holding capacity of the web. The cassette cleaning web can reduce the oil-on-copy to less than 3 mg/copy and more specifically to less than 1 mg/copy which would allow for adequate post finishing applications while still using amino functionalized fuser oil in the fuser subsystem. The cassette cleaning web reduces the contamination of the oil-sump because used web materials are wound up and oil or contaminate materials like wax, toner are retained in the spent web cartridge. This invention enables reduced oil-on-copy, eliminates the bulky and expensive release agent management system, and also provides a direct cleaning to the surface of the fuser roll.
    Type: Application
    Filed: March 1, 2010
    Publication date: September 1, 2011
    Applicant: XEROX CORPORATION
    Inventors: Kurt I. HALFYARD, T. Brian McAneney, Edward Graham Zwartz
  • Publication number: 20110212396
    Abstract: Disclosed are amorphous polyesters that contain only renewable resources designed for emulsion aggregation toner fabrication. The amorphous polyesters may be obtained from the mixture of three different monomers: 1,4:3,6-dianhydro-D-sorbitol (isosorbide), nonanedioic acid (azelaic acid), and butanedioic acid (succinic acid). Different polymer properties may be achieved depending on the ratio of these three monomers. By altering the ratio, polymers of high to low acid value can be obtained, as well as different ranges of glass transition temperatures.
    Type: Application
    Filed: March 1, 2010
    Publication date: September 1, 2011
    Applicant: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Guerino Sacripante, Ke Zhou, Edward G. Zwartz, Michael S. Hawkins
  • Publication number: 20110211873
    Abstract: A sheet pressing device includes plurality of pressing members and a support member. The plurality of pressing members is provided on a downstream side in a discharging direction of fixing unit which carries out a fixing treatment over a sheet having an unfixed image transferred thereonto along the discharging direction. The plurality of pressing members presses both ends of the sheet in a direction along a surface of the sheet carried out the fixing treatment by the fixing unit and in a direction crossing the discharging direction. The support member supports the plurality of pressing members movably in such a direction as to approach or separate from the sheet when the sheet passes through the sheet pressing device.
    Type: Application
    Filed: September 2, 2010
    Publication date: September 1, 2011
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yukihiro ICHIKI, Yasuki TANAKA, Motoyuki YAGI
  • Patent number: D644687
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: September 6, 2011
    Assignee: Xerox Corporation
    Inventors: Jonathan R Ritter, Brian Walter Aznoe, Brent Rodney Jones, Christopher R Gold, John I Ramalho
  • Patent number: RE42673
    Abstract: The color management system comprises a state-space based model for a pixel element in a dynamically varying color marking device. A sensor measures the color of the printed output for construction of a selected set of sensitivity functions representative of color output relating to inputs. The gradients of the sensitivity functions are extracted and used to develop the corresponding discrete multivariable state-space model of the pixel element. More particularly, the model is constructed from the Jacobian matrix characterizing a change in measured color output for a change in input color values of the pixel. Extension of modeling methodology for a single pixel is applied to multiple pixel elements.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: September 6, 2011
    Assignee: Xerox Corporation
    Inventor: Lalit K. Mestha