| Patent Number |
Title Of Patent |
Date Issued |
| 7498108 |
Thiophosphate containing photoconductors |
March 3, 2009 |
| An imaging member containing an optional supporting substrate, a photogenerating layer and at least one charge transport layer, and wherein said photogenerating layer contains at least one thiophosphate. |
| 7497566 |
Image transfer element with balanced constant load force |
March 3, 2009 |
| An image transfer mechanism includes a pressure element and a lever system. The lever system has a load attachment point with a range of position that depends on the thickness of a print medium positioned between the imaging element and the pressure element. A load mechanism includes |
| 7496767 |
Secure content objects |
February 24, 2009 |
| A secure content object protects electronic documents from unauthorized use. The secure content object includes an encrypted electronic document, a multi-key encryption table having at least one multi-key component, an encrypted header and a user interface device. The encrypted document |
| 7496412 |
Control method using dynamic latitude allocation and setpoint modification, system using the con |
February 24, 2009 |
| In a system including a plurality of elements, or plurality of subsystems of elements, each performing a process using process control to maintain operation within a latitude of a setpoint and having an output characteristic that contributes to an overall output quality specification |
| 7496314 |
Customer replaceable unit assembly |
February 24, 2009 |
| A customer replaceable unit (CRU) assembly for mounting in a sheet handling machine is disclosed and includes (a) a CRU frame having a frame size for fitting into a mounting portion within the sheet handling machine; (b) a first roller assembled rotatably to the CRU frame; (c) a seco |
| 7495799 |
Maximum gamut strategy for the printing systems |
February 24, 2009 |
| Samples are printed on print media with at least first and second marking engines. A first lightness value of a solid area of a first sample printed with the first marking engine and a second lightness value of a solid area of a second sample printed with the second marking engine are |
| 7495792 |
Programmable physical document |
February 24, 2009 |
| A programmable document includes a physical document having at least one sheet of material and information recorded thereon and a computer attached to the physical document. The computer includes an input/output device, a processor and a memory storing the recorded information in dig |
| 7495791 |
Load sharing among networked image processing devices |
February 24, 2009 |
| A networked environment for sharing an image processing load for a rendering job and associated method is disclosed. In one embodiment, the networked environment includes: an image source device, a first image processing device, a network for data communications, and a second image p |
| 7495721 |
Methods of printing filter material to fabricate color filter |
February 24, 2009 |
| Several methods of printing filter material on a substrate to fabricate a color filter are provided. In one embodiment, the method includes: a) providing a substrate with a framework forming a cell, b) providing a liquid filter material ejection system with an inkjet print head, a li |
| 7495347 |
Ion implantation with multiple concentration levels |
February 24, 2009 |
| A method that includes providing a semiconductor substrate having a mask on a surface thereof. The mask includes a first region having no masking elements and a second region having a plurality of masking elements. Each of the plurality of masking elements has a dimension that is equal t |
| 7495214 |
Systems and methods for material authentication |
February 24, 2009 |
| Systems and methods for authentication of materials used in imaging members and assemblies. Authentication of imaging materials ensure that compatible components are being used with the imaging members and assemblies. Embodiments provide a system and method for efficiently detecting |
| 7494757 |
Ultra low melt toners comprised of crystalline resins |
February 24, 2009 |
| A toner having an amorphous resin, a crystalline resin, and a colorant, wherein the crystalline resin has a melting temperature of at least 70.degree. C. and a recrystallization point of at least 47.degree. C. exhibits improved document offset properties and improved heat cohesion. A |
| 7494756 |
Release fluid compositions |
February 24, 2009 |
| Use of release fluids or agents constituting hyperbranched polymers. The three-dimensional structure imparts characteristics that make the hyperbranched polymers useful in xerographic processes. The hyperbranched polymer release fluids or agents may be used with a fuser member having a |
| 7494755 |
Toner composition and method |
February 24, 2009 |
| A method for forming toner particles includes polymerizing monomers to form a latex comprising polymer particles; combining the latex with unsaturated curable resin to form aggregates containing the polymer particles and the unsaturated curable resin particles; and heating the aggreg |
| 7494608 |
Stabilized silver nanoparticle composition |
February 24, 2009 |
| A composition comprising a liquid and a plurality of silver-containing nanoparticles with a stabilizer, wherein the silver-containing nanoparticles are a product of a reaction of a silver compound with a reducing agent comprising a hydrazine compound in the presence of a thermally re |
| 7494121 |
Automatically variably shaped sheet stacking tray surface for printed sheets |
February 24, 2009 |
| A system and method of stacking printed sheets with sheet curl stacking problems in an automatically variable configuration stacking system having a spaced array of repositionable initial sheet supporting surfaces providing a generally planar initial stack supporting configuration on |
| 7493572 |
Navigation methods, systems, and computer program products for virtual three-dimensional books |
February 17, 2009 |
| A system is described for displaying images of a virtual three-dimensional book having one or more virtual pages. The system comprises a display system capable of executing a display program wherein images of the virtual three-dimensional book are produced on the display system. A de |
| 7493489 |
System and method for authentication of JPEG image data |
February 17, 2009 |
| A system and method for authentication of JPEG image data enables the recipient to ascertain whether the received image file originated from a known identified source or whether the contents of the file have been altered in some fashion prior to receipt. A unique hashing function is |
| 7493322 |
System and method for computing a measure of similarity between documents |
February 17, 2009 |
| A measure of similarity between two documents is computed. In computing the measure of similarity, a first list of rated keywords extracted from the first document and a second list of rated keywords extracted from the second document are received. The first and second lists of keywords |
| 7493250 |
System and method for distributing multilingual documents |
February 17, 2009 |
| A method and apparatus is disclosed for generating and distributing multilingual documents. The multilingual documents are comprised of primary information consisting of human-readable text and secondary information consisting of machine-readable data such that a translation of the t |
| 7493067 |
Toner and developer purification system |
February 17, 2009 |
| This is a test procedure for detecting contaminants or a method for removing contaminants from toner to be used in an electrophotographic marking system. The method simulates the mixing and separation of contaminants that occur in an actual development system. It has been determined |
| 7493060 |
Cleaning system for removing dendrites from a charging device in a xerographic printer |
February 17, 2009 |
| In a xerographic printing apparatus, a charge device is used to apply a charge to a photoreceptor. The charge device includes a wire. A shuttle moves along the charge device, and includes a brush wherein the sides of the bristles contact the wire. When the brush moves along the wire, an |
| 7493057 |
Inline purge capability (purge while run) to improve system productivity during low area coverag |
February 17, 2009 |
| An electrostatic printing machine having a plurality of color stations having a system for maintaining a preset toner age in each of the plurality of color stations, including: determining a toner age for each of the plurality of color stations; determining if purge while run is requ |
| 7493055 |
Fault isolation of visible defects with manual module shutdown options |
February 17, 2009 |
| A system for handling objects includes a first image marking engine operative to mark objects, and a second image marking engine operative to mark objects. In addition, the system includes a first object delivery path operative to transport objects presented by the first image marking |
| 7492504 |
Electrophoretic display medium and device |
February 17, 2009 |
| An electrophoretic display medium includes one or more set of colored particles in a dielectric fluid, wherein the display medium has an electrical conductivity of about 10.sup.-11 to about 10.sup.-15 S/m, and wherein at least one of the one or more set of particles include crosslink |
| 7492486 |
Systems and methods for adaptive dynamic range adjustment for images |
February 17, 2009 |
| A method is described to match an original binary image with the dynamic range of a desired target document. The original binary image is restored first to contone and a histogram of the contone image is processed to generate a Tone Reproduction Curve (TRC) for the contone image with |
| 7492485 |
Image-based compensation and control of photoreceptor ghosting defect |
February 17, 2009 |
| A system and method for correcting a defect in an image, such as a ghost defect or a reload defect, by compensating for the defect. A defect model is created with a source target function that represents a source level with respect to a target level. A test output image is created on whi |
| 7492472 |
Multimedia communications/collaboration hub |
February 17, 2009 |
| A hub allowing collaboration and communication, including delayed and secure printing, faxing, telephone service, internet and e-mail access, and data transfer between personal electronic devices and the hub and/or other personal electronic devices and/or remote devices. Embodiments |
| 7492381 |
Compensation of MPA polygon once around with exposure modulation |
February 17, 2009 |
| Many xerographic machines have a motor polygon assembly (MPA), which is a rotating polygonal mirror. As the MPA rotates, it reflects a modulated light beam to produce scan lines on a photoreceptor. Inconsistencies in the MPA can cause inconsistencies in the scan lines, and therefore |
| 7491989 |
Positive charging photoreceptor |
February 17, 2009 |
| An imaging member includes a substrate, a charge transport layer, a charge generator layer, and a charge transporting or photoconductive overcoating layer. |
| 7491646 |
Electrically conductive feature fabrication process |
February 17, 2009 |
| A process for fabricating an electrically conductive feature comprising: (a) liquid depositing a low viscosity composition comprising starting ingredients including an organic anine, a silver compound, and optionally an organic acid, to result in a deposited composition; and (b) heating |
| 7491575 |
Fabricating zinc oxide semiconductor using hydrolysis |
February 17, 2009 |
| A process for fabricating at least one semiconductor layer of an electronic device including: performing on a composition including a hydrolyzable zinc compound a number of activities including: (a) hydrolyzing at least a portion of the hydrolyzable zinc compound to form zinc oxide; |
| 7491480 |
Thiophosphate and antioxidant containing photoconductors |
February 17, 2009 |
| An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer, and wherein the at least one charge transport layer contains at least one thiophosphate. |
| 7491435 |
Perfluorinated polyether release agent for fuser members |
February 17, 2009 |
| A fuser member having a substrate; an outer layer containing a silicone or fluoropolymer; and a release agent material coating on the outer layer, wherein the release agent material coating includes a perfluorinated polyether having a skeleton of Formulas I or II or mixtures thereof: |
| 7491281 |
Belt and method of making same |
February 17, 2009 |
| A method is disclosed that involves providing a sheet of thermoplastic belt material having a first end with a first radius of curvature, providing a mandrel having a second radius of curvature that is no more than 12% larger or smaller than the first radius of curvature, wrapping th |
| 7490306 |
Sub-system power noise suppression design procedure |
February 10, 2009 |
| Aspects of the disclosure provide methods and systems to design a distributed discrete capacitor bank incorporating power plane capacitance to concentrate the suppression of AC coupling to the frequencies caused by clocks and signal transitions. Aspects of the disclosure provide a pr |
| 7489830 |
Methods for generating anti-aliased text and line graphics in compressed document images |
February 10, 2009 |
| A method and system for storing and generating anti-aliased text and lineart data from compressed document image files, using a MRC model that represents the image as an ordered set of mask/image pairs at resolutions appropriate to the content of each layer. The method and system provide |
| 7487462 |
Methods and systems for indicating invisible contents of workspace |
February 3, 2009 |
| Techniques for displaying contextual information in clipped views of two-dimensional workspaces are provided. A method for indicating an object includes: providing a workspace having a viewed space and a populated space, the viewed space being delineated by a border; determining an o |
| 7487445 |
Constraint-optimization system and method for document component layout generation |
February 3, 2009 |
| What is disclosed is a system and method for specifying a custom document as a multi-criteria constraint optimization problem, and a method to automatically create the specified document using existing constraint optimization solving algorithms. The present method specifies the docum |
| 7486416 |
Inter-separation decorrelator |
February 3, 2009 |
| Spatially dependent colorant interaction effects are identified and isolated from other aspects of spatially dependent colorant appearance nonuniformities. A decorrelating function for compensating for the identified spatially dependent colorant interaction effects is determined. Spa |
| 7485737 |
Colorant compounds |
February 3, 2009 |
| A compound of the formula ##STR00001## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R', R'', Y, CA.sup.+, and A.sup.- each, independently of the others are as defined herein. |
| 7485728 |
Colorant compounds |
February 3, 2009 |
| A compound of the formula ##STR00001## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R, Y, CA, A.sup.-, m and n each, independently of the others are as defined herein. |
| 7485400 |
Developer |
February 3, 2009 |
| A developer includes a carrier and a toner, wherein the toner contains toner particles of at least one binder, at least one colorant, and external additives, wherein the developer has a trimmer clogging value in relation to toner triboelectric charge and toner cohesion expressed acco |
| 7485399 |
Imaging members having undercoat layer with a polymer resin and near infrared absorbing componen |
February 3, 2009 |
| An imaging member including a metal or metallized substrate; an undercoat layer comprising a polymer resin and a near infrared absorbing component that absorbs at an imaging member exposure wavelength and has a high molar extinction coefficient; and one or more additional layers disposed |
| 7485398 |
Titanyl phthalocyanine photoconductors |
February 3, 2009 |
| A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component wherein the at least one charge transport component is comprised of aryl amine molecules of the formula |
| 7485344 |
Process for coating fluoroelastomer fuser member layer using blend of two different fluorinated |
February 3, 2009 |
| A process for producing a fuser member coating including a) adding and reacting a fluoroelastomer, a crosslinking agent, a polar solvent, and a blend of two different fluorinated copolymer surfactants to form a coating solution, and b) providing the coating solution on the fuser memb |
| 7483667 |
Pressure roll for fusing operation |
January 27, 2009 |
| Washers are used for a pressure roll in a fusing system of an electrophotographic system that improve the functionality and durability of the pressure roll. These washers are made up of a rigid ring section having flexible (less rigid) fingers projecting from the inner periphery of t |
| 7483664 |
Fusing apparatus having a segmented external heater |
January 27, 2009 |
| A fusing apparatus having a segmented external heater is provided. The fusing apparatus includes a rotatable pressure roller, a rotatable heated fusing member having an external surface forming a fusing nip with the pressure roller, and a rotatable segmented external heater mounted in |
| 7483591 |
Image transfer apparatus with streak removal system |
January 27, 2009 |
| An image transfer apparatus for transferring an image on a sheet medium having a frame and a reader connected to the frame for reading the image on the sheet medium. The image moves relative to the reader in a process direction when the reader reads the image. A positioning system is |
| 7483186 |
Pitch to pitch online gray balance calibration |
January 27, 2009 |
| A printer or other marking engine includes a marking material transfer device, such as a photoreceptor drum or belt, that includes a plurality of pitches. Each pitch receives an individual color of marking material and conveys the marking material to a substrate. The marking engine forms |
