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Lestrange, US

Jack Lestrange, Macedon, NY US

Patent application numberDescriptionPublished
20090110420METHOD AND SYSTEM FOR IMPROVED CONTROL PATCH MEASUREMENT IN PRINTING SYSTEM - Printing systems, control systems, and methods are presented for controlling customer image creation in which process control patches are laterally offset from a lateral customer image boundary to mitigate adverse interaction of control patches and customer images and to improve print engine process control.04-30-2009
20090121162TECHNIQUE TO REMOVE SENSING ARTIFACTS FROM A LINEAR ARRAY SENSOR - Disclosed is a method and system for calibrating an image capturing sensor. The method and system include generating a test pattern on an image receiving device and measuring one or more colorimetric properties of the test pattern with an image sensor. The disclosed method and system measure the test pattern with the image sensor located in two or more different cross-process positions to determine an independent uniformity profile for the image sensor and the image rendering process.05-14-2009
20100092200OPTIMIZATION OF RELOAD PERFORMANCE FOR PRINTER DEVELOPMENT SYSTEMS WITH DONOR ROLLS - A method creates a printing image charge on a photoreceptor printing region of a photoreceptor within a printing apparatus and, simultaneously with the creating of the printing image charge, charges source patches on the photoreceptor outside the photoreceptor printing region. The method then transfers developer material from a donor roll to the photoreceptor. The source patches cause developer material to be removed from areas of the donor roll outside a donor roll printing region to create developer material-depleted regions. The method then reloads the donor roll with developer material using a magnetic brush and evaluates a reload function of the donor roll by characteristics of developer material on target patches with developer material in areas of the non-printing region of the photoreceptor adjacent the target patches. The method then alters the printing image charge to maintain the reload function within a predetermined range.04-15-2010

Patent applications by Jack Lestrange, Macedon, NY US

Jack T. Lestrange, Macedon, NY US

Patent application numberDescriptionPublished
20090297187MULTI-SENSOR CALIBRATION TECHNIQUE - A method and apparatus for sensor calibration and signal processing to obtain transfer efficiency measurements in a reprographic device from a pair of reflective toner area coverage (mass) sensors, one located before transfer and the other located after. The same mass is passed under both sensors and the ratio of responses yields the necessary sensor characterization.12-03-2009
20100014877DYNAMIC PROCESS CONTROL FOR PRINTING DEVICES IN THE PRESENCE OF RELOAD DEFECTS - Methods and systems are provided for controlling a printing device in the presence of reload defects. According to a first embodiment, a controller is provided to manage the printing of scheduled control patches immediately after an image of a print job. Accordingly to a second embodiment, a controller is configured to manage the printing of an image or a print job immediately after a control patch.01-21-2010
20100021189PRINTER CONTROL SYSTEM TO MINIMIZE TWO-DIMENSIONAL IMAGE QUALITY DEFECTS - An image printing system configured to minimize two-dimensional image quality non-uniformities on printed documents is provided. The image printing system includes a marking engine, a linear array sensor, an image analyzer, and a controller. The marking engine is constructed to print toner images on an image bearing surface moving in a process direction. The marking engine comprising of a toner development system. The linear array sensor is adjacent the image bearing surface and is extending in a cross-process direction. The linear array sensor is configured to scan the toner image on the image bearing surface. The image analyzer is configured to detect a two-dimensional non-uniformity in the toner image. The controller is configured to control at least one control parameter of the toner development system based on the two-dimensional image quality non-uniformity in the toner image that is detected by the linear array sensor.01-28-2010
20100092191DYNAMIC PROCESS CONTROL FOR IMAGE PRINTING DEVICES IN THE PRESENCE OF RELOAD DEFECTS BASED ON CUSTOMER IMAGE CONTENT - A method and system for controlling an image printing system in the presence of reload defects are provided. The method comprises placing toner images on an image bearing surface moving in a process direction, determining the density of the toner image or a portion thereof being printed on the image bearing surface, and printing a scheduled control patch at a location in the cross-process direction on the image bearing surface, wherein the location where each control patch is printed is dynamically changed based on the density of the toner image adjacent the control patch or a portion thereof.04-15-2010
20110123206IN SITU ELECTROPHOTOGRAPHIC PRINTER TONER CHARGE MEASUREMENT - A systems and methods for providing an image forming machine capable of monitoring the absolute charge to mass ratio of toner and dielectric thickness of a photoconductor layer on a photoconductor in an image forming device, and for providing warnings, alerts and process controls when the absolute charge to mass ratio of toner in an image forming device or the dielectric thickness of a photoconductor layer falls outside a predetermined range.05-26-2011

Patent applications by Jack T. Lestrange, Macedon, NY US

Michael Lestrange, Essex Junction, VT US

Patent application numberDescriptionPublished
20090254781DIGITAL RELIABILITY MONITOR HAVING AUTONOMIC REPAIR AND NOTIFICATION CAPABILITY - A circuit for preventing failure in an integrated circuit. The circuit including: an original circuit; one or more redundant circuits; and a repair processor, including a clock cycle counter configured to count pulses of a pulsed signal, the repair processor configured to (a) replace the original circuit with a first redundant circuit or (b) configured to select another redundant circuit, the selection in sequence from a second redundant circuit to a last redundant circuit, and to replace a previously selected redundant circuit with the selected redundant circuit each time the cycle counter reaches a predetermined count of a set of pre-determined cycle counts.10-08-2009

Michael M. Lestrange, Henderson, NV US

Patent application numberDescriptionPublished
20090005176GAMING DEVICE HAVING TWO CARD READERS - A gaming device includes a housing and a game display carried by the housing for displaying one or more games. The gaming device further includes two card readers carried by the housing: a first card reader to read information indicative of a player identity from a player club card issued by a casino, and a second card reader to read information indicative of a financial account from a financial card issued by a financial institution.01-01-2009

Patent applications by Michael M. Lestrange, Henderson, NV US