Patents by Inventor Mark Omelchenko

Mark Omelchenko 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: 20060233569
    Abstract: An image processing apparatus including tandem print engines is provided for forming an image on an image receiving substrata. The apparatus includes a first print engine and a second print engine downstream from the first print engine. The second print engine is slaved to the first print engine. The first print engine has a first photoreceptor and a first period of revolution. The second print engine has a second photoreceptor and a second period of revolution. The image processing apparatus further includes an intermediate inverter that inverts the image receiving substrate between the first print engine and the second print engine. The inverter determines a phase difference between a first seam signal from the first photoreceptor and a second seam signal from the second photoreceptor.
    Type: Application
    Filed: April 19, 2005
    Publication date: October 19, 2006
    Inventors: Michael Furst, Daniel Costanza, Robert Lofthus, Mark Omelchenko
  • Publication number: 20060127132
    Abstract: Drive train motor speed is varied in a manner that compensates for characteristic rotational velocity errors of the associated drive train, such as by modulating a drive train motor speed control signal at a modulation phase and amplitude derived from the characterized rotational velocity error. Characterization can be performed on a test system for each drive train of interest, and the compensation values thus obtained can be saved for later use by systems in which the characterized drive trains are used. Thus, a drive train used in a consumables cartridge for an electrophotographic printing (EP) system can be characterized and the corresponding data saved via a label or memory circuit that is affixed to the cartridge. Such data can be used by the EP system in which the cartridge is installed to more accurately control the velocity of the image forming process members driven by the cartridge's characterized drive train.
    Type: Application
    Filed: December 14, 2004
    Publication date: June 15, 2006
    Inventors: Stacy Pargett, Mark Omelchenko, John Richey, John Spicer, Adrian Lee
  • Publication number: 20050134679
    Abstract: A method of aligning a print image of an electrophotographic machine, the method including the steps of determining a power level of a laser beam, sensing a synch position of the laser beam associated with the scan line and varying a delay time before starting the scan line dependent upon the power level and the synch position.
    Type: Application
    Filed: December 4, 2003
    Publication date: June 23, 2005
    Inventors: Robert Paterson, John Richey, Mark Lund, Mark Omelchenko