Patents Represented by Attorney J. E. Beck

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  • Highlight color printing
    Patent number: 4761669
    Abstract: An electrophotographic printing machine in which indicia are printed on a sheet in at least two different colors. An electrostatic latent image is recorded on a photoconductive member and developed with a liquid developer material of one color. The latent image is neutralized and ions projected onto the photoconductive member in an image wise pattern to record another latent image. This latent image is developed with a liquid developer of another color. Both liquid images are transferred substantially simultaneously to a sheet to print indicia in two colors thereon.
    Type: Grant
    Filed: May 21, 1987
    Date of Patent: August 2, 1988
    Assignee: Xerox Corporation
    Inventor: Michael J. Langdon
  • Bearing mounting
    Patent number: 4758101
    Abstract: A mounting which supports a bearing in a machine frame. The mounting is molded with the bearing being molded integrally therewith in an aperture therein. The outer race of the bearing is in molded non-rotative engagement with the mounting. The mounting has a plurality of mounting supports. At least one of the mounting supports is adapted to be received by the frame.
    Type: Grant
    Filed: May 13, 1987
    Date of Patent: July 19, 1988
    Assignee: Xerox Corporation
    Inventors: Norman L. Roof, Sr., Stephen J. Csaszar, Jr., Delbert N. Dewald, Patrick T. Ferrari, John D. Gramlich, David C. Irving, Leslie R. Kilian, Kenneth P. Moore, Richard F. Scarlata, Joseph S. Vetromile
  • Sheet guide
    Patent number: 4751547
    Abstract: An apparatus in which a range of differing weight copy sheets are advanced from a processing station of an electrophotographic printing machine. At the processing station, developed images are transferred from a moving image bearing member to copy sheets. The copy sheets are separated from the image bearing member with a light weight copy sheet being separated from the image bearing member at a first position. Heavier weight copy sheets are separated from the image bearing member at other positions. The first position is after the other positions in the direction of movement of the image bearing member. A guide is provided for guiding the heavier weight copy sheets onto the sheet transport with the light weight copy sheet being received on the sheet transport without contacting the guide.
    Type: Grant
    Filed: August 14, 1987
    Date of Patent: June 14, 1988
    Assignee: Xerox Corporation
    Inventor: Louis D. Fratangelo
  • System for controlling sorter indexing
    Patent number: 4746111
    Abstract: A copy sheet transport is provided for integration between a copier and an indexing sorter arranged for collating the copier output into copy sets or booklets. The transport is associated with a control system for controlling the acceleration or deceleration of indexing movement of the sorter in accordance with the positional relationship of copy sheets in the transport. Sensors and a timing arrangement are devised for determining the positional relationship, and to impart correctional signals to the drive for the sorter.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: May 24, 1988
    Assignee: Xerox Corporation
    Inventor: Raymond A. Naramore
  • Liquid ink fusing system
    Patent number: 4745432
    Abstract: A reproducing machine in which an electrostatic latent image recorder on a photoconductive member is developed with a liquid developer material comprising at least a liquid carrier having pigmented particles dispersed therein. The developed image is transferred from the photoconductive member to a sheet of support material. The sheet of support material, with the developed image thereon, passes through a housing. In the housing, heat and pressure are applied to the sheet of support material to vaporize the liquid carrier and to fuse the pigmented particles to the sheet of support material in image configuration. A substantially portion of the vaporized liquid carrier and heated air are removed from the interior of the housing.
    Type: Grant
    Filed: January 30, 1987
    Date of Patent: May 17, 1988
    Assignee: Xerox Corporation
    Inventor: Michael J. Langdon
  • Sheet transport and registration apparatus
    Patent number: 4744555
    Abstract: An apparatus in which a sheet is registered during the movement thereof. The sheet is moved along a path in a forward direction of movement and a lateral direction of movement substantially normal thereto. The lateral movement of the sheet causes the side edge of the sheet to engage a registration edge so as to be aligned thereat. The magnitude of the moving force applied on the sheet is proportional to the thickness of the sheet. In this way, the moving force varies as a function of the thickness of the sheet with the sheet slipping laterally when engaging the registration edge to prevent buckling thereof.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: May 17, 1988
    Assignee: Xerox Corporation
    Inventors: Raymond A. Naramore, Anthony Ilacqua
  • Transport having compensation for material packing
    Patent number: 4743936
    Abstract: An apparatus in which particles are moved from one end of a duct to the other end thereof. The particles in the duct are fluidized. A pressure differential is generated which moves the fluidized particles in the duct from one end of the duct to the other end thereof. When the particles pack and cake together, the apparatus automatically moves the toner particles away from the region of the packed and caked toner particles to relieve this condition.
    Type: Grant
    Filed: August 14, 1987
    Date of Patent: May 10, 1988
    Assignee: Xerox Corporation
    Inventor: Jan Bares
  • Intermediate transfer apparatus
    Patent number: 4743939
    Abstract: An apparatus in which a liquid image is transferred from a photoconductive member to a copy sheet. The liquid image, which includes a liquid carrier having toner particles dispersed therein, is attracted from the photoconductive member to an intermediate belt having a transfer liquid coated thereon. The transfer liquid has a higher viscosity than the viscosity of the liquid carrier. Liquid carrier is removed from the transfer liquid coated on the belt. Toner particles are transferred from the transfer liquid coated on the intermediate belt to the copy sheet in image configuration.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: May 10, 1988
    Assignee: Xerox Corporation
    Inventors: Jessica B. Dulmage, Henry R. Till
  • Preview system for an electrophotographic printing machine
    Patent number: 4740814
    Abstract: An electrophotographic printing machine in which an edited copy of an original document is formed. A video image of the original document is displayed and the machine operator adjusts the image as desired. After being adjusted, an edited copy of the video image is reproduced by the printing machine.
    Type: Grant
    Filed: January 9, 1987
    Date of Patent: April 26, 1988
    Assignee: Xerox Corporation
    Inventor: Jeffrey J. Folkins
  • Liquid ink transfer system
    Patent number: 4736227
    Abstract: An apparatus in which a liquid image is transferred from a surface to a substantially electrically non-conductive, flexible copy sheet with the liquid image being charged to one polarity and the surface being charged to a polarity opposite to the polarity of the charge of the liquid image. A first charge is applied on the copy sheet. The first charge is of the same polarity as the polarity of the charge of the liquid image. This causes the copy sheet to adhere releasably to the surface with the liquid image being interposed therebetween. A second charge is applied on the copy sheet after the first charge has been applied thereon. The second charge is of an opposite polarity to the polarity of the charge of the liquid image. This causes the liquid image to be attracted to the copy sheet.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: April 5, 1988
    Assignee: Xerox Corporation
    Inventors: Henry R. Till, Fredrick A. Warner, Charles A. Radulski
  • Editing copying machine
    Patent number: 4734789
    Abstract: An apparatus in which an altered copy of an original document is produced. An editing device associated with an electrophotographic printing machine changes the information in the original document and generates a signal indicative of the changes therein. A liquid crystal display overlays the original document. The areas selected for editing are indicated on the liquid crystal display.
    Type: Grant
    Filed: February 2, 1987
    Date of Patent: March 29, 1988
    Assignee: Xerox Corporation
    Inventors: Craig A. Smith, Thomas B. Wall, Robert L. Kurtz, Ruediger W. Knodt
  • Filter regeneration in an electrophotographic printing machine
    Patent number: 4733272
    Abstract: A reproducing machine in which a liquid image including a liquid carrier having pigmented particles dispersed therein is transferred to a sheet of support material. In the operative mode, when the sheet of support material having the liquid image thereon is present, a fuser applies heat thereto to remove liquid carrier therefrom so as to dry the sheet of support material, and fuse the pigmented particles thereto in image configuration. In the standby mode, when the sheet of support material is not present, the fuser still generates heat. The liquid carrier removed from the sheet of support material by the fuser is collected in a condenser. Air flowing from the condenser passes through a filter to remove residual liquid carrier therefrom, in the standby mode, heated air from the fuser is directed to the filter to regenerate the filter.
    Type: Grant
    Filed: July 17, 1986
    Date of Patent: March 22, 1988
    Assignee: Xerox Corporation
    Inventors: William C. Howe, Dexter A. Dyer
  • Liquid ink fusing and carrier removal system
    Patent number: 4731635
    Abstract: A reproducing machine in which an electrostatic latent image recorded on a photoconductive member is developed with a liquid developer material comprising at least a liquid carrier having pigmented particles dispersed therein. The developed image is transferred from the photoconductive member to a sheet of support material. A pair of rollers cooperate with one another to define a nip through which the sheet of support material having the developed image thereon passes. The pair of rollers apply heat and pressure to the sheet of support material having the developed image thereon. The pigmented particles are fused to the sheet of support material in image configuration and the vaporized liquid carrier removed therefrom.
    Type: Grant
    Filed: February 12, 1987
    Date of Patent: March 15, 1988
    Assignee: Xerox Corporation
    Inventors: Thomas F. Szlucha, Dexter A. Dyer, Michael J. Langdon
  • Liquid carrier recovery system
    Patent number: 4731636
    Abstract: An apparatus in which a developing liquid used in an electrophotographic printing machine to develop an electrostatic latent image on a photoconductive surface is reclaimed. The developing liquid is vaporized to dry the wet copy sheet. The developing liquid vapor enters the chamber of a housing and condenses on the surface of a cooling fluid as it passes therethrough. The developer liquid is immiscible in the cooling fluid and floats on the surface thereof so as to exit from the outlet port of the chamber of the housing for recirculation to the development system.
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: March 15, 1988
    Assignee: Xerox Corporation
    Inventors: William C. Howe, Thomas C. Hsu
  • Vertically oriented photoconductive drum
    Patent number: 4731631
    Abstract: A printing machine including a drum adapted to have a latent image recorded on the surface thereof. The drum is positioned with the longitudinal axis thereof extending in a direction substantially transverse to the horizontal. The latent image is developed with a liquid developer to form a liquid image on the surface of the drum. The liquid image is transferred to a copy sheet. Residual liquid developer removed from the surface of the drum by the cleaning unit, flows in a downwardly direction under the influence of gravity to a liquid collector housing located at the bottom of the cleaning unit.
    Type: Grant
    Filed: April 20, 1987
    Date of Patent: March 15, 1988
    Assignee: Xerox Corporation
    Inventors: Edwin R. Monkelbaan, Joseph Fantuzzo
  • Timing pulse generator for an electrophotographic printing machine
    Patent number: 4731638
    Abstract: An apparatus which generates timing pulses in an electrophotographic printing machine. A flexible member having spaced, marks formed photographically thereon is mounted on the shaft of the photoconductive member to rotate in unison therewith. As the flexible member rotates, the spaced marks are detected to generate a timing pulse output in response thereto. The detector prevents the member from deflecting to control the axial motion of the flexible member during the rotation thereof.
    Type: Grant
    Filed: November 26, 1986
    Date of Patent: March 15, 1988
    Assignee: Xerox Corporation
    Inventor: Abraham Cherian
  • Roll fusing for liquid images
    Patent number: 4727394
    Abstract: An electrophotographic printing machine in which an electrostatic latent image recorded on a photoconductive member is developed with a liquid developer material having at least a liquid carrier with pigmented particles dispersed therein. The developed image is transferred from a photoconductive member to a sheet of support, material. Heat and pressure are applied to the developed image on the sheet of support material to vaporize substantially all of the liquid carrier transferred to the sheet of support material and to substantially permanently fuse pigmented particles to the sheet of support material in image configuration.
    Type: Grant
    Filed: April 28, 1986
    Date of Patent: February 23, 1988
    Assignee: Xerox Corporation
    Inventors: Raphael F. Bov, Jr., Dexter A. Dyer
  • Developer unit using three angers in three chambers
    Patent number: 4724457
    Abstract: An apparatus in which a latent image recorded on a member is developed with a developer material comprising at least carrier granules and toner particles. Toner particles are dispensed into the developer housing and mixed with unused developer material. The toner particles and developer material are advanced along an extended path so that the toner particles are gently mixed and triboelectrically charged to substantially the nominal level prior to contacting the latent image. A system of this type is particularly useful for toner particles requiring extensive gentle mixing to achieve the desired triboelectric charge.
    Type: Grant
    Filed: October 23, 1986
    Date of Patent: February 9, 1988
    Assignee: Xerox Corporation
    Inventors: Christian O. Abreu, Cyril G. Edmunds, Mark A. Scheuer
  • Apparatus for drying a web of sheet material having a fused image thereon
    Patent number: 4723147
    Abstract: A reproducing machine in which a latent image recorded on a member is developed with a liquid developer material including at least a liquid carrier having pigmented particles dispersed therein. The developed image is transferred from the member to a portion of a moving web of sheet material. The pigmented particles are fused to the web of sheet material in image configuration. A flow of heated air is directed over an extended region of the web of sheet material in a direction parallel to the direction of the movement of the web and in a direction opposed to the direction of movement of the web to vaporize liquid carrier therefrom so as dry the web of sheet material.
    Type: Grant
    Filed: July 31, 1986
    Date of Patent: February 2, 1988
    Assignee: Xerox Corporation
    Inventor: Dexter A. Dyer
  • Developing or cleaning unit for an electrophotographic printing machine
    Patent number: 4723144
    Abstract: A processing station for use in electrophotographic printing machines to clean the photoconductive belt or develop the electrostatic latent image recorded thereon. A roller transports single component magnetic particles into contact with the photoconductive belt. The belt is deflected around the exterior circumferential surface of the roller to form an extended cleaning or development zone.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: February 2, 1988
    Assignee: Xerox Corporation
    Inventor: Morton Silverberg