Patents by Inventor David Rakov

David Rakov 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: 20060115630
    Abstract: The invention relates to an image receiving element comprising in order a support, at least one polyolefin resin coating and at least one image receiving layer, wherein the volume resistivity of the element as measured through its thickness is substantially greater than 1×1012 ohm-cm and the internal resistivity of the element is greater than 1×1010 ohm/square.
    Type: Application
    Filed: November 30, 2004
    Publication date: June 1, 2006
    Inventors: Mark Zaretsky, David Rakov, William Hagen
  • Publication number: 20060062590
    Abstract: Preventing the imaging forming process of an electrostatographic reproduction apparatus having a plurality of imaging modules in tandem relative to a receiver transport belt moveable along a transport path from becoming contaminated with fuser release oil. A substantially uniform layer of the pigmented marking particles from the development subsystem of the image forming process is deposited onto the photoconductive member of the image forming process during any non-imaging cycles of the process, including cycle down, non-imaging skip frames, or recovery from a receiver jam. The substantially uniform layer of pigmented marking particles acts as a barrier to block fuser release oil from the photoconductive member and as a vehicle to carry away contaminating fuser release oil.
    Type: Application
    Filed: September 20, 2004
    Publication date: March 23, 2006
    Inventors: Richard Allen, Thomas Tombs, David Rakov
  • Publication number: 20050244179
    Abstract: A module, included in an electrophotographic printer, for making toner images by a method in which transfer current for electrostatic transfer of toner images to receiver members is adjusted to compensate for ambient variations of toner charge-to-mass ratio (q/m). A predetermined functional relationship between transfer current and a control voltage parameter is utilized. Magnitudes of the control voltage parameter are derived from voltage measurements relating to creation of toner control patches on a photoconductive image-recording member included in a modular electrophotographic printer. Control voltage magnitude is linearly dependent on q/m. The functional relationship, which is characterized by three experimentally determined parameters, is co-optimized for providing efficient transfer of toner images and for minimizing back-transfer of toner away from a receiver member in a transfer station included in the module.
    Type: Application
    Filed: January 25, 2005
    Publication date: November 3, 2005
    Inventors: David Rakov, Graham Wright, Frank Shuster
  • Publication number: 20050105939
    Abstract: An electrostatographic reproduction apparatus includes: a primary imaging member for producing an electrostatic latent image on a receiver, a development station for applying toner particles to the latent image to form a developed toner image on the receiver, a fuser assembly for fixing the developed toner image to form a fused toner image on the receiver, and a transport member for transporting the receiver to or from the fuser assembly. The transport member includes a substrate and an oil-absorbing layer that contains inorganic particles dispersed in an organic binder and is capable of absorbing release oil applied to the receiver bearing the fused toner image.
    Type: Application
    Filed: October 14, 2004
    Publication date: May 19, 2005
    Inventors: Wayne Ferrar, Jeffrey Murray, Larry Judkins, Cumar Sreekumar, David Rakov, Lixin Chu, Douglas Garman