Patents by Inventor Gregory McGuire

Gregory McGuire has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20170075238
    Abstract: A method of forming an overcoat layer. The method comprises providing a substrate having an imaging structure formed thereon, the imaging structure comprising (i) a charge transport layer and a charge generating layer, or (ii) an imaging layer comprising both charge generating material and charge transport material. An overcoat composition is deposited on the imaging structure, the overcoat composition comprising a charge transport molecule, a fluorinated building block, a leveling agent, a liquid carrier and optionally a first catalyst. The fluorinated building block is a fluorinated alkyl monomer substituted at the ? and ? positions with a hydroxyl, carboxyl, carbonyl or aldehyde functional group or the anhydrides of any of those functional groups. The overcoat composition is cured to form an overcoat layer that is a fluorinated structured organic film, the curing comprising treating an outer surface of the overcoat composition with at least one cross-linking process.
    Type: Application
    Filed: September 30, 2016
    Publication date: March 16, 2017
    Applicant: XEROX CORPORATION
    Inventors: Gregory McGuire, Adrien P. Cote, Richard A. Klenkler, Yvan Gagnon
  • Patent number: 9523928
    Abstract: A method of forming an overcoat layer. The method comprises providing a substrate having an imaging structure formed thereon, the imaging structure comprising (i) a charge transport layer and a charge generating layer, or (ii) an imaging layer comprising both charge generating material and charge transport material. An overcoat composition is deposited on the imaging structure, the overcoat composition comprising a charge transport molecule, a fluorinated building block, a leveling agent, a liquid carrier and optionally a first catalyst. The fluorinated building block is a fluorinated alkyl monomer substituted at the ? and ? positions with a hydroxyl, carboxyl, carbonyl or aldehyde functional group or the anhydrides of any of those functional groups. The overcoat composition is cured to form an overcoat layer that is a fluorinated structured organic film, the curing comprising treating an outer surface of the overcoat composition with at least one cross-linking process.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: December 20, 2016
    Inventors: Gregory McGuire, Adrien P. Cote, Richard A. Klenkler, Yvan Gagnon
  • Patent number: 9500968
    Abstract: An overcoat layer comprises a structured organic film (SOF) comprising a plurality of segments and a plurality of linkers including a first fluorinated segment and a second electroactive segment, and an antioxidant is present in the SOF; and a hole transport molecule which does not form a network with the SOF.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: November 22, 2016
    Assignee: XEROX CORPORATION
    Inventors: Gregory McGuire, Richard A. Klenkler, Adrien P. Côté, Yvan Gagnon
  • Publication number: 20160259256
    Abstract: An imaging member outer layer comprising a structured organic film comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film further includes fluorinated segments and capping units comprising hole transport materials.
    Type: Application
    Filed: March 3, 2015
    Publication date: September 8, 2016
    Inventors: Adrien P. Cote, Gregory McGuire, Richard A. Klenkler
  • Publication number: 20160231660
    Abstract: An overcoat layer comprises a structured organic film (SOF) comprising a plurality of segments and a plurality of linkers including a first fluorinated segment and a second electroactive segment, and an antioxidant is present in the SOF; and a hole transport molecule which does not form a network with the SOF.
    Type: Application
    Filed: February 11, 2015
    Publication date: August 11, 2016
    Inventors: Gregory McGuire, Richard A. Klenkler, Adrien P. Côté, Yvan Gagnon
  • Patent number: 9400441
    Abstract: Embodiments pertain to a method of creating an electrostatic latent image through use of an electrostatic latent image generating device comprising a single exposing device for selectively exposing a surface of the electrostatic imaging member to light, and a single electrostatic charging device for charging the surface of the electrostatic imaging member, wherein the exposing device is located before the electrostatic charging device such that the exposing the surface of the electrostatic imaging member to light precedes the charging the surface of the electrostatic imaging member and wherein charge is not accepted by the exposed surface of the electrostatic imaging member and the charge is accepted by the unexposed surface of the electrostatic imaging member.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: July 26, 2016
    Assignee: XEROX CORPORATION
    Inventors: Gregory McGuire, Yu Liu, Richard A. Klenkler
  • Publication number: 20160091805
    Abstract: A method of forming an overcoat layer. The method comprises providing a substrate having an imaging structure formed thereon, the imaging structure comprising (i) a charge transport layer and a charge generating layer, or (ii) an imaging layer comprising both charge generating material and charge transport material. An overcoat composition is deposited on the imaging structure, the overcoat composition comprising a charge transport molecule, a fluorinated building block, a leveling agent, a liquid carrier and optionally a first catalyst. The fluorinated building block is a fluorinated alkyl monomer substituted at the ? and ? positions with a hydroxyl, carboxyl, carbonyl or aldehyde functional group or the anhydrides of any of those functional groups. The overcoat composition is cured to form an overcoat layer that is a fluorinated structured organic film, the curing comprising treating an outer surface of the overcoat composition with at least one cross-linking process.
    Type: Application
    Filed: September 26, 2014
    Publication date: March 31, 2016
    Inventors: Gregory McGuire, Adrien P. Cote, Richard A. Klenkler, Yvan Gagnon
  • Patent number: 9075325
    Abstract: A photoreceptor includes a substrate a charge generating layer disposed on the substrate and a charge transport layer disposed on the charge generating layer, the charge transport layer includes a hole transport molecule, a fluorinated diol, and a leveling agent, the charge transport layer is substantially free of a polymer binder and catalyst, and has a post-discharge voltage of less than about 10 volts.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: July 7, 2015
    Assignee: XEROX CORPORATION
    Inventors: Gregory McGuire, Sarah J. Vella, Adrien P. Cote, Yvan Gagnon, Brynn Dooley
  • Publication number: 20150139695
    Abstract: Embodiments pertain to a novel imaging member, namely, an electrostatic latent image generating member, and methods for using the same, that can generate an electrostatic latent image through charge acceptance control and without the need for conventional post charging photo discharge, eliminating process steps and avoiding limitations in system speed due to the transit time of charge carriers after light exposure.
    Type: Application
    Filed: January 29, 2015
    Publication date: May 21, 2015
    Inventors: Gregory McGuire, Yu Liu, Richard A. Klenkler
  • Patent number: 9002237
    Abstract: Embodiments pertain to a novel imaging member, namely, an electrostatic latent image generating member, and methods for using the same, that can generate an electrostatic latent image through charge acceptance control and without the need for conventional post charging photodischarge, eliminating process steps and avoiding limitations in system speed due to the transit time of charge carriers after light exposure.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: April 7, 2015
    Assignee: Xerox Corporation
    Inventors: Gregory McGuire, Yu Liu, Richard A. Klenkler
  • Publication number: 20150064614
    Abstract: A photoreceptor includes a substrate a charge generating layer disposed on the substrate and a charge transport layer disposed on the charge generating layer, the charge transport layer includes a hole transport molecule, a fluorinated diol, and a leveling agent, the charge transport layer is substantially free of a polymer binder and catalyst, and has a post-discharge voltage of less than about 10 volts.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 5, 2015
    Applicant: XEROX CORPORATION
    Inventors: Gregory McGuire, Sarah J. Vella, Adrien P. Cote, Yvan Gagnon, Brynn Dooley
  • Patent number: 8971764
    Abstract: The presently disclosed embodiments relate generally to image forming systems comprising imaging apparatus members and toner compositions. More specifically, the present embodiments relate to an improved BCR xerographic system comprising (1) a cleaning blade comprising a material having a certain Share A Hardness; (2) a photoreceptor having a surface with a specified Young's Modulus and; and (3) a toner lubricant additive. The combined system demonstrates a significant increase an overall service life of the system.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: March 3, 2015
    Assignee: Xerox Corporation
    Inventors: Richard A. Klenkler, Gregory McGuire, Sarah J. Vella, Guiqin Song, Yu Liu, Adrien P. Cote
  • Patent number: 8963812
    Abstract: A method and apparatus for displaying a reflective image in response to light emitted from an emissive display is disclosed. An apparatus includes an emissive display, a processor in communication with the emissive display, and an electronic cover proximate to the emissive display. The electronic cover includes a passive display layer having a plurality of passive display elements and a photosensitive layer responsive to emitted light from the emissive display. A method includes forming an emitted light image on the emissive display and exposing the photoconductor layer of the electronic cover to an emitted light image, causing the plurality of passive display elements to form a reflective image on the passive display layer so that the reflective image corresponds to the displayed image.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: February 24, 2015
    Assignee: Xerox Corporation
    Inventors: Nan-Xing Hu, Johann E. Junginger, Gregory McGuire, Vladislav Skorokhod
  • Patent number: 8951708
    Abstract: The present embodiments relate to methods of making a toner composition. More specifically, the present embodiments relate to methods of including a functional material into a toner composition.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: February 10, 2015
    Assignee: Xerox Corporation
    Inventors: Yu Liu, Cuong Vong, Sarah Vella, Gregory McGuire, Richard Klenkler, Nan-xing Hu, Paul Gerroir
  • Patent number: 8929767
    Abstract: An image forming apparatus including an electrophotographic photoconductive member, a charging unit, a delivery unit and a cleaning unit. The charging unit is disposed in contact with the surface of the photoconductive member and the delivery unit disposed in contact with the surface of the charging unit. The delivery unit applies a layer of functional material to a surface of the charging unit and the charging unit in turn applies a layer of the functional material onto the surface of the photoconductive member. The cleaning unit is disposed in contact with a surface of the charging unit to clean the charging unit and reduce contamination of a surface of the delivery unit. The cleaning unit is disposed in an upstream direction of the delivery roller relative to a rotation direction of the charging unit.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: January 6, 2015
    Assignee: Xerox Corporation
    Inventors: Yu Liu, Sarah J. Vella, Gregory McGuire, Gaetano Lavigne, Nan-xing Hu, Johann Junginger
  • Publication number: 20140363761
    Abstract: The present embodiments relate to methods of making a toner composition. More specifically, the present embodiments relate to methods of including a functional material into a toner composition.
    Type: Application
    Filed: June 5, 2013
    Publication date: December 11, 2014
    Inventors: Yu Liu, Cuong Vong, Sarah Vella, Gregory McGuire, Richard Klenkler, Nan-xing Hu, Paul Gerroir
  • Patent number: 8873997
    Abstract: A bias charge member is pulsed into contact with a photoreceptor at high frequency as a mean to reduce contamination and wearing on both the bias charge member and photoreceptor.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: October 28, 2014
    Assignee: Xerox Corporation
    Inventors: Yu Liu, Johann Junginger, Gaetano J Lavigne, Gregory Mcguire, Vladislav Skorokhod, Nan-Xing Hu
  • Patent number: 8852833
    Abstract: Imaging members having a support, an imaging layer disposed on the support, an outer layer disposed on the imaging layer and fluoropolymer particles imbedded in an outer surface of the outer layer. Image forming apparatuses having such imaging members. Processes for preparing an imaging member for an electrophotographic apparatus, the process involving coating an imaging layer with an outer layer formulation. The imaging layer can be disposed on a support. The outer layer formulation can be dried to form an outer layer disposed on the imaging layer and has an outer surface. Fluoropolymer particles are applied to the outer layer.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: October 7, 2014
    Assignee: Xerox Corporation
    Inventors: Gregory McGuire, Richard Klenkler, Yvan Gagnon, Yu Liu
  • Patent number: 8854403
    Abstract: Systems and methods are described that facilitate using TFT control of electronic discharge for surface potential reduction and latent image formation on an imaging member. Corona charging is performed to first create a background surface potential, followed by selective discharge of individual pixels using an array of TFTs to supply free charge carriers to reduce the electrostatic surface potential to nearly zero. This is followed by discharged area development (DAD) to develop the latent image on a print medium (e.g., paper). The described systems and methods do not require a HVPS to drive the backplane; therefore, the TFT matrix is electrostatically decoupled from the developer and other system components in direct contact with the imaging member. Accordingly, known addressing systems may be used to address the TFT array.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: October 7, 2014
    Assignee: Xerox Corporation
    Inventors: Vladislav Skorokhod, Gregory McGuire, Robert A. Street
  • Publication number: 20140294443
    Abstract: The presently disclosed embodiments relate generally to image forming systems comprising imaging apparatus members and toner compositions. More specifically, the present embodiments relate to an improved BCR xerographic system comprising (1) a cleaning blade comprising a material having a certain Share A Hardness; (2) a photoreceptor having a surface with a specified Young's Modulus and; and (3) a toner lubricant additive. The combined system demonstrates a significant increase an overall service life of the system.
    Type: Application
    Filed: March 29, 2013
    Publication date: October 2, 2014
    Applicant: Xerox Corporation
    Inventors: Richard A. Klenkler, Gregory McGuire, Sarah J. Vella, Guiqin Song, Yu Liu, Adrien P. Cote