Patents by Inventor Brian Robert Conrow
Brian Robert Conrow 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).
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Publication number: 20160110653Abstract: A method, non-transitory computer readable medium, and apparatus for predicting a service call for digital printing equipment from a customer are disclosed. For example, the method detects a triggering event based upon a number of detections of an event on a digital printing equipment exceeding a threshold within a predefined time period, wherein the number of detected events on the digital printing equipment exceeding the threshold within the predefined time period is indicative of an impending soft failure, calculates a probability that the customer will place the service call due to the impending soft failure within a second predefined period of time based on a fusion of a hazard model of the digital printing equipment, a customer behavior model and the number of detections of the event in response to the triggering event being detected and determines an action based upon the probability using a cost based utility function.Type: ApplicationFiled: October 20, 2014Publication date: April 21, 2016Inventors: Diane Marie Foley, Juan Li, Bryan R. Dolan, Vladislav Skorokhod, Brian Robert Conrow, Connie Treese Gaylord
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Patent number: 8655209Abstract: The present disclosure provides a method of forming a toner image, comprising: electrically charging a photoreceptor by a charging roller being brought into contact with the photoreceptor, the photoreceptor comprises a photosensitive coating layer on a cylindrical conductive substrate; correcting line width variation using an exposure adjustment calculation (y); and, wherein the exposure adjustment calculation uses a factor based on a ratio (m) of a coefficient of line width variation due to toner age divided by the coefficient of line width variation due to laser power.Type: GrantFiled: June 29, 2011Date of Patent: February 18, 2014Assignee: Xerox CorporationInventors: W. Bradford Willard, Paul L. Jacobs, Brian Robert Conrow
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Patent number: 8577236Abstract: An image forming apparatus includes a sensor that is configured to detect a property of a developer material, a transport unit that is operatively in contact with the developer material and that is configured to move the developer material toward a recording medium, and a controller that receives the property of the developer material from the sensor unit and sets a voltage of the transport unit, wherein the voltage is determined based on the property of the developer material received from the sensor.Type: GrantFiled: December 10, 2009Date of Patent: November 5, 2013Assignee: Xerox CorporationInventors: W. Bradford Willard, Brian Robert Conrow, Kimberly Anne Stoll
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Patent number: 8514470Abstract: What is disclosed is a novel system and method for xerographic Dmax control based upon measurements made on the printed paper using an inline spectrophotometer (ILS) or similar device. The disclosed method is based upon directly measuring the color to actuator sensitivity. Each of the separations is controlled independently using an actuator specific to that color separation. The present method is effective at controlling the color of the solid primaries. The fact that the vector of change is highly correlated with solid color variation seen in the field suggests that the teachings hereof effectively increase the solid color stability. Increased solid color stability increases the color stability throughout the printer gamut and the stability of the gamut boundaries, which increases the robustness of gamut mapping algorithms. Advantageously, the present method can be combined with existing ILS-based maintenance architectures.Type: GrantFiled: December 8, 2010Date of Patent: August 20, 2013Assignee: Xerox CorporationInventors: Jack Gaynor Elliot, Lalit Keshav Mestha, Peter Paul, David C. Craig, Brian Robert Conrow, Christine Ann Steurrys
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Patent number: 8437040Abstract: A method for controlling a tone reproduction curve of an image printing system includes generating an actual printed image tone reproduction curve using printed image data from a printed image sensor; determining a set of adjusted contone values by comparing the actual printed image tone reproduction curve with a target printed image tone reproduction curve, where the adjusted contone values being representative of the print contone values at which target color density data of the printed image is achieved in the image printing system; and determining adjusted image transfer surface reflectance data to update a target image transfer surface tone reproduction curve, where the adjusted image transfer surface reflectance data being obtained by interpolating the target image transfer surface tone reproduction curve at the adjusted contone values; and controlling subsequent toner image data to achieve the updated target image transfer surface tone reproduction curve.Type: GrantFiled: October 7, 2010Date of Patent: May 7, 2013Assignee: Xerox CorporationInventors: Douglas Raymond Taylor, Brian Robert Conrow, Shawn Patrick Updegraff
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Patent number: 8351081Abstract: What is disclosed is a novel system and method for xerographic Dmax control based upon measurements made on the printed paper using an inline spectrophotometer (ILS) or similar device. The disclosed method is based upon directly measuring the color to actuator sensitivity. Each of the separations is controlled independently using an actuator specific to that color separation. The present method is effective at controlling the color of the solid primaries. The fact that the vector of change is highly correlated with solid color variation seen in the field suggests that the teachings hereof effectively increase the solid color stability. Increased solid color stability increases the color stability throughout the printer gamut and the stability of the gamut boundaries, which increases the robustness of gamut mapping algorithms. Advantageously, the present method can be combined with existing ILS-based maintenance architectures.Type: GrantFiled: July 20, 2010Date of Patent: January 8, 2013Assignee: Xerox CorporationInventors: Jack Gaynor Elliot, Lalit Keshav Mestha, Peter Paul, David C. Craig, Brian Robert Conrow, Christine Ann Steurrys
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Publication number: 20130002788Abstract: The present disclosure provides a method of forming a toner image, comprising: electrically charging a photoreceptor by a charging roller being brought into contact with the photoreceptor, the photoreceptor comprises a photosensitive coating layer on a cylindrical conductive substrate; correcting line width variation using an exposure adjustment calculation (y); and, wherein the exposure adjustment calculation uses a factor based on a ratio (m) of a coefficient of line width variation due to toner ager divided by the coefficient of line width variation due to laser power.Type: ApplicationFiled: June 29, 2011Publication date: January 3, 2013Applicant: Xerox CorporationInventors: W. BRADFORD WILLARD, Paul L. Jacobs, Brian Robert Conrow
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Patent number: 8305642Abstract: A method and system are provided for characterizing performance of a printer across a plurality of halftone screens. A first non-uniformity profile is generated by measuring printer performance. Cross-position differences between the first non-uniformity profile and selected corresponding cross-positions of a second halftone screen are detected. A scaling factor is computed relating the detected differences. Printer performance with the second halftone screen is predicted by applying the scaling factor associated with the second halftone screen to the non-uniformity profile of the first halftone screen.Type: GrantFiled: December 19, 2008Date of Patent: November 6, 2012Assignee: Xerox CorporationInventors: Douglas Raymond Taylor, Brian Robert Conrow, Shawn Patrick Updegraff
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Publication number: 20120147390Abstract: What is disclosed is a novel system and method for xerographic Dmax control based upon measurements made on the printed paper using an inline spectrophotometer (ILS) or similar device. The disclosed method is based upon directly measuring the color to actuator sensitivity. Each of the separations is controlled independently using an actuator specific to that color separation. The present method is effective at controlling the color of the solid primaries. The fact that the vector of change is highly correlated with solid color variation seen in the field suggests that the teachings hereof effectively increase the solid color stability. Increased solid color stability increases the color stability throughout the printer gamut and the stability of the gamut boundaries, which increases the robustness of gamut mapping algorithms. Advantageously, the present method can be combined with existing ILS-based maintenance architectures.Type: ApplicationFiled: December 8, 2010Publication date: June 14, 2012Applicant: Xerox CorporationInventors: Jack Gaynor Elliot, Lalit Keshav Mestha, Peter Paul, David C. Craig, Brian Robert Conrow, Christine Ann Steurrys
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Publication number: 20120086983Abstract: A method for controlling a tone reproduction curve of an image printing system includes generating an actual printed image tone reproduction curve using printed image data from a printed image sensor; determining a set of adjusted contone values by comparing the actual printed image tone reproduction curve with a target printed image tone reproduction curve, where the adjusted contone values being representative of the print contone values at which target color density data of the printed image is achieved in the image printing system; and determining adjusted image transfer surface reflectance data to update a target image transfer surface tone reproduction curve, where the adjusted image transfer surface reflectance data being obtained by interpolating the target image transfer surface tone reproduction curve at the adjusted contone values; and controlling subsequent toner image data to achieve the updated target image transfer surface tone reproduction curve.Type: ApplicationFiled: October 7, 2010Publication date: April 12, 2012Applicant: XEROX CORPORATIONInventors: Douglas Raymond TAYLOR, Brian Robert Conrow, Shawn Patrick Updegraff
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Publication number: 20120019842Abstract: What is disclosed is a novel system and method for xerographic Dmax control based upon measurements made on the printed paper using an inline spectrophotometer (ILS) or similar device. The disclosed method is based upon directly measuring the color to actuator sensitivity. Each of the separations is controlled independently using an actuator specific to that color separation. The present method is effective at controlling the color of the solid primaries. The fact that the vector of change is highly correlated with solid color variation seen in the field suggests that the teachings hereof effectively increase the solid color stability. Increased solid color stability increases the color stability throughout the printer gamut and the stability of the gamut boundaries, which increases the robustness of gamut mapping algorithms. Advantageously, the present method can be combined with existing ILS-based maintenance architectures.Type: ApplicationFiled: July 20, 2010Publication date: January 26, 2012Applicant: Xerox CorporationInventors: Jack Gaynor Elliot, Lalit Keshav Mestha, Peter Paul, David C. Craig, Brian Robert Conrow, Christine Ann Steurrys
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Publication number: 20110142466Abstract: An image forming apparatus includes a sensor that is configured to detect a property of a developer material, a transport unit that is operatively in contact with the developer material and that is configured to move the developer material toward a recording medium, and a controller that receives the property of the developer material from the sensor unit and sets a voltage of the transport unit, wherein the voltage is determined based on the property of the developer material received from the sensor.Type: ApplicationFiled: December 10, 2009Publication date: June 16, 2011Applicant: XEROX CORPORATIONInventors: W. Bradford WILLARD, Brian Robert CONROW, Kimberly Anne STOLL
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Publication number: 20100157373Abstract: A method and system are provided for characterizing performance of a printer across a plurality of halftone screens. A first non-uniformity profile is generated by measuring printer performance. Cross-position differences between the first non-uniformity profile and selected corresponding cross-positions of a second halftone screen are detected. A scaling factor is computed relating the detected differences. Printer performance with the second halftone screen is predicted by applying the scaling factor associated with the second halftone screen to the non-uniformity profile of the first halftone screen.Type: ApplicationFiled: December 19, 2008Publication date: June 24, 2010Applicant: Xerox CorporationInventors: Douglas Raymond Taylor, Brian Robert Conrow, Shawn Patrick Updegraff