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Xerox Corporation Patents
Assignee:
Xerox Corporation
Address:
Norwalk, CT
No. of patents:
15435
Patents:


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Patent Number Title Of Patent Date Issued
7534294 Quinacridone nanoscale pigment particles and methods of making same May 19, 2009
A process for preparing coated nanoscale quinacridone pigment particles, includes providing a first solution containing a surface additive compound in an acid; adding a quinacridone pigment precursor or crude quinacridone pigment into the first solution and causing the surface additi
7533879 Variable frequency tampers for coated stocks used in paper feed trays May 19, 2009
A media tray has at least a bottom and two sides positioned along edges of the bottom. The media tray is adapted to hold sheets of media. The bottom comprises openings, and projections extend through the openings in the bottom of the media tray. The projections comprise elongated structu
7532848 Printing roll having a controllable heat absorbing internal surface May 12, 2009
A roll useful in fusing marking material to a print sheet includes a coating disposed on at least a portion of the inner surface thereof. A lamp disposed inside the roll supplies radiant energy to the inner surface. The coating changes its absorptivity (such as color) as desired, to
7532845 Paper jam-resistant detack corotron for use in an electrostatographic imaging apparatus May 12, 2009
An improved detack corotron reduces the likelihood of a paper jam arising from a curled paper edge getting caught in the corotron. The detack corotron includes an electrically conductive coronode having a plurality of field emitters, each field emitter having a terminating end, the t
7532830 Environmental controls for operation of an electrostatographic developer unit having multiple ma May 12, 2009
A development station that improves toner halftone dot development over a wide range of environmental conditions includes a developer housing for retaining semi-conductive carrier particles and toner particles, a first magnetic roll having a stationary core with at least one magnet and a
7532767 Removing ringing and blocking artifacts from JPEG compressed document images May 12, 2009
A method of removing ringing and blocking artifacts from a decompressed digital image. In one method, a background value of the digital image a background region and foreground regions is determined, and a threshold value is computed. A mapping of the digital image is then generated by
7532761 System and method for optimizing data recovery for a partially destroyed document May 12, 2009
A system and method are provided for optimizing data recovery for a partially destroyed document by exploiting the localized nature of typical partial document destruction. The system and method physically lay out encoded document recovery information in a way such that the likelihoo
7532363 Apparatus and methods for de-screening scanned documents May 12, 2009
Apparatus and methods for de-screening an image signal utilizing a bank of filters to provide several increasingly blurred versions of the original image signal is disclosed. At any given time, one or more of the blurred versions are created, on a pixel-by-pixel basis. The outputs from a
7532357 Job submission system and method for controlling multiple job renderings with a single master or May 12, 2009
There is provided a job control system for a document processing system having a document processing subsystem in which a job, including a set of image data and a job control ticket, is processed each time the job, along with the job control ticket, is submitted to the document proce
7532342 Dynamic IDZ precession in a multi-pass direct marking system May 12, 2009
A method for minimizing the Inter-Document Zone (IDZ) in printing system architectures with print engines running at constant speed, employing asynchronous paper delivery; and providing control over paper feed times. The method of the present invention comprising first receiving input
7531582 Radiation curable phase change inks containing curable epoxy-polyamide composite gellants May 12, 2009
Ink vehicles having improved gellant solubility and ink compositions including such ink vehicles are provided. Exemplary ink vehicles include first and second co-monomers, and a gellant that includes that includes a curable epoxy-polyamide composite gellant; in which the first and second
7531334 Polymeric microcarriers for cell culture functions May 12, 2009
Polymeric microcarriers suitable for use in cell culture processes and the methods of making such polymeric microcarriers by emulsion/aggregation polymerization processes.
7531284 Multi-layer photoreceptor May 12, 2009
A photoreceptor and method of forming the same is disclosed. A photoreceptor includes a substrate, an undercoat layer, and an imaging layer. The undercoat layer comprises a single, non-porous anodized aluminum layer that has an impedance of less than about 50 Kohm. The single, non-po
7531283 Laser ablation of welded seam area May 12, 2009
A seamless flexible electrophotographic imaging member comprising a flexible substrate strip material having an unmelted photodecomposed seam of carbon-black loaded polyimide polymer.
7531277 Self erasing photoreceptor containing an electroluminescent nanomaterial May 12, 2009
In accordance with the invention, there are electrophotographic photoreceptors, image forming apparatus and methods of forming an image. The electrophotographic photoreceptor can comprise a conductive layer comprising a plurality of electroluminescent nanomaterials, a first contact e
7531110 Solvent system for overcoating materials May 12, 2009
A unique solvent system adapted for high speed overcoat applications is disclosed. The solvent system comprises methyl alcohol and monochlorobenzene in a weight ratio of about 6:1 to about 1.5:1, respectively.
7531033 Pre-treatment compositions, oil-based ink compositions, and processes for ink-jet recording usin May 12, 2009
Pre-treatment compositions include organic liquids and cross-linking initiators. Pre-treatment compositions are included in ink sets that also include oil-based ink compositions. Oil-based ink compositions include organic liquids, unsaturated fatty materials having terminal polar fun
7530675 Piezoelectric actuator device May 12, 2009
The present application is directed to piezoelectric actuator devices. One embodiment of a piezoelectric actuator comprises a chamber diaphragm having a major surface. A piezoelectric transducer is positioned on the major surface of the chamber diaphragm. The piezoelectric transducer has
7530567 Finisher compiler tray May 12, 2009
This is a compiler tray with a Velcro.RTM. surfaced back guide enabled to be used with Birds Beak Edge Curl Suppressors to minimize up curl and down curl of sheets fed into the tray and improve Stapled Set Registration. The Velcro.RTM. is either fixed to the back guide or adjustably
7530256 Calibration of sheet velocity measurement from encoded idler rolls May 12, 2009
A system and method are provided to calibrate a sheet velocity measurement derived from a drive nip system incorporating idler encoders. Testing has found that the velocity from an idler encoder system is subject to systematic errors, for example, errors that occur when the system is
7530210 Custom package wrap May 12, 2009
One method embodiment herein inputs a package size and a package wrap pattern. The method calculates a sheet size corresponding to the package size, and prints the sheet of package wrap. The sheet of package wrap has the package wrap pattern and can have fold markings corresponding to
7530109 Systems and methods for generating secure documents from scanned images May 5, 2009
A system for preparing and securing a scanned document for use by an application may include a scanner configured to scan a document and a processor coupled to the scanner. The processor may be configured to determine a security profile to be assigned to the document based on a prede
7529755 Method for document viewing May 5, 2009
A client-side handheld device requests a server to convert server-side documents into a compression format prior to transmission of said documents to the client. The server retrieves and converts the requested documents to a raster image that is then compressed according to attribute
7529731 Automatic discovery of classification related to a category using an indexed document collection May 5, 2009
One aspect of the invention generates a plurality of candidate phrases in response to a first open-site network search for a category term. This aspect also determines an external score in response to a second open-site network search for at least one of the plurality of candidate ph
7529723 Multi-tiered structure for file sharing based on social roles May 5, 2009
An Internet-scale file sharing system includes a client-side file sharing application that allows file-sharing users to identify files to share and transmit metadata corresponding to those files to a metadata repository. A server-side application operating on the metadata repository trac
7529708 System and method for determining latent demand for at least one of a plurality of commodities May 5, 2009
A system for determining latent demand for at least one of a plurality of commodities includes an offer analyzer and a commodity selector. The offer analyzer analyzes at least a plurality of initially unaccepted offers for each of the plurality of commodities. The commodity selector
7529512 Fast decay ultrasonic driver May 5, 2009
Acoustic Transfer Assist (ATA) systems are used in media printing devices to help transfer toner to paper by use of ultrasonic vibrations. The transducer is driven at its resonant frequency, though somewhat dampened. To shorten the decay time of the transducer when its vibration is not
7529491 Apparatus and method for adapting a machine to communicate with customer replaceable unit monito May 5, 2009
An adapter suitable for installation in a machine in place of a customer replaceable unit monitor having a first interface format is described herein. Upon installation of the adapter in the machine, the adapter enables data communication between the machine and a customer replaceable
7528997 Systems and methods for streak detection in image array scanning May 5, 2009
In a system and method for streak detection in a fixed imaging array digital scanning system, redundant information regarding individual lines of a scanned image collected by multiple discrete rows or sets of scanning sensors in the imaging array are compared. Stationary obstructions
7528978 Systems and method for controlling hide and hold jobs in a network May 5, 2009
When a user submits a printer ready application or print job to a networked printing device, the print job is sent to the destination printer through a print driver. In a busy production or office environment, print jobs enter a print queue and are printed in the order they are recei
7528971 Method for color halftoning when utilizing redundant color inks May 5, 2009
A method for utilizing redundant color inks to improve image quality while minimizing any undesirable effects such as texture or graininess. The method comprises tessellating the available redundant color space as defined by the available redundant ink colorants into regions where the
7528261 Small molecule compound having indolocarbazole moiety and divalent linkage May 5, 2009
A small molecule compound including at least one type of an optionally substituted indolocarbazole moiety and at least one divalent linkage.
7527906 Imaging member having adjustable friction anticurl back coating May 5, 2009
The presently disclosed embodiments are directed to anticurl back coatings useful in electrostatography. More particularly, the embodiments pertain to an electrophotographic imaging member with an improved anticurl back coating formulated by a polymer blend comprising two low surface ene
7527905 Imaging member May 5, 2009
An imaging member comprising a charge generating layer, a charge transport layers and an optional barrier layer between the charge generating layer and the charge transport layer. The charge transport layer may comprise a first and a second or more layers, wherein the first layer compris
7527904 Imaging member May 5, 2009
An imaging device including a substrate, a charge generating layer, and a charge transport layer is disclosed. A particular charge generating layer is disclosed that includes porphine, or its derivatives, to facilitate charge generation while suppressing ghosting and improving photorecep
7527903 Imaging member May 5, 2009
A flexible imaging member which does not require the use of an anti-curl back coating is disclosed herein. The flexible imaging member has a layer comprising two charge transport molecules dispersed in a film-forming polymer binder. The first charge transport molecule is a biphenyl amine
7527902 Photoreceptor layer having solid and liquid lubricants May 5, 2009
An imaging member containing a substrate, and an outer layer containing solid and liquid lubricants, and an image forming apparatus for forming images on a recording medium including the imaging member above, a development component to apply a developer material to said charge-retent
7527359 Circuitry for printer May 5, 2009
A print head has an array of jets formed in a jet stack to deliver ink to an image receptor and at least one ink reservoir to deliver ink to the jet stack. Control circuitry is arranged on the jet stack with an actuator array arranged on the control circuitry to cause the reservoir t
7527263 Pre-registration apparatus May 5, 2009
A stalled roll registration system and method includes a mechanism that allows for pivoting deskew action in a pre-registration nip in the form of a segmented pre-registration drive roll assembly mounted on a releasable low friction lateral translation carriage. Outer pre-registratio
7527260 Closed loop scuffer for sheet handling May 5, 2009
This is a paper-handling system using a motor driven frictional drive element to push a paper sheet into a compiling tray. The tray has a registration wall where a paper sheet is abutted to align a paper stack. The system uses a sensor to convey relevant information to the motor and
7527259 Simplified movement printer sheet stack edge guide May 5, 2009
A more intuitive and easier to use repositionable sheet stack edge guide, in which a single simple manual movement of a single visible upstanding member in either of the opposite possible repositioning directions can both automatically unlatch the edge guide latching system from its
7526812 Systems and methods for manipulating rights management data April 28, 2009
Documents can be created to include metadata associated with rights management information that applies to the entire document and/or to one or more applicable sub-portions of the document. When a user places such a document to be scanned on a multi-function device (MFD) in a rights
7526727 Marking machine user interface supplementation via added, attached portable electronic device April 28, 2009
A user interface extension allows data entry into a marking machine user interface field from an electronic device, such as a PDA, attached to the marking machine via compatible communications ports. The marking machine includes a UI field into which data must be entered, the user lets t
7526482 System and method for enabling components on arbitrary networks to communicate April 28, 2009
A system for enabling components on arbitrary networks to communicate includes a plurality of arbitrary components, such as computers, servers, laptops, facsimile machines, copier machines and cellular telephones, including applications operating on those components, such as word pro
7526243 Vibration method to reduce and/or eliminate friction/noise April 28, 2009
A small vibrator is connected to a cleaning blade or cleaning blade holder in an electrostatic marking system. This vibrator in a cycle out step moves the blade up and down and reduces thereby overall contact with the photoconductor surface; this reduces any noise caused by blade contact
7526218 Method for adjusting transfer current in an image transfer machine April 28, 2009
In a printing machine having at least one transfer device driven in response to an electrical signal and operable to transfer a medium onto a sheet, a method controls the magnitude of the electrical signal driving the transfer device. The method includes assigning a magnitude of the
7526215 Reserve life run-on feature for customer replaceable units April 28, 2009
A printer includes at least one replaceable module which is removable from the printer. A processor discontinues an operation of the printer when the processor determines that an end of life value for the replaceable module is reached unless an appropriate identifier is input which allow
7525704 System for providing depth discrimination of source images encoded in a rendered composite image April 28, 2009
A system for enabling depth perception of image content in a rendered composite image, wherein illuminant/colorant depth discrimination encoding provides encoding of first and second source images in a composite image, for the purposes of subsequent illuminant/colorant depth discrimi
7525676 System and method for controlling access to programming options of a multifunction device April 28, 2009
A system for enabling client devices to access different sets of features on a multifunction device to which the devices are coupled includes a multifunction device having an input device for receiving constraint data that identifies a subset of multifunction features available on the
7524979 Methods of making colorant compounds April 28, 2009
A process for preparing a colorant of the formula ##STR00001## which comprises preparing a first reaction mixture by admixing leucoquinizarin and, optionally, quinizarin, an aminobenzene substituted with an alcohol group of the formula --R.sub.1--OH, boric acid, and an optional solvent,
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