The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 25, 2007
Filed:
Jan. 11, 2005
Song-feng MO, Webster, NY (US);
Wendy K. Apton, Webster, NY (US);
Jennifer R. Wagner, Walworth, NY (US);
Stephen F. Randall, West Henrietta, NY (US);
Patricio G. Medina, Rochester, NY (US);
Patrick J. Walker, Rochester, NY (US);
Richard A. Aman, Macedon, NY (US);
Song-Feng Mo, Webster, NY (US);
Wendy K. Apton, Webster, NY (US);
Jennifer R. Wagner, Walworth, NY (US);
Stephen F. Randall, West Henrietta, NY (US);
Patricio G. Medina, Rochester, NY (US);
Patrick J. Walker, Rochester, NY (US);
Richard A. Aman, Macedon, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A method by which the target of a toner concentration (TC) sensor can be set up based on the equivalent developability concept without using an expensive patch generator. First, use a black toner area coverage (BTAC) sensor to measure the relative reflectance (RR) of a 100% area coverage developed patch (ROS generated) at a series of development levels (Vor V) to generate a pseudo development curve and estimate Vin real-time (Vis the Vlevel that starts to develop toner onto the photoreceptor belt.) Then, add a nominal delta Vto Vto get the development level (V) needed to generate 100% area coverage gray patch. Finally, using a BTAC sensor to measure the RR level of a 100% area coverage (AC) gray patch, move the target of the TC sensor, and converge the sensor's reading to the sensor's target continuously until the RR level of the gray patch hits the RR target (predefined) within the tolerance range. Thus, the target of the TC sensor is set for the xerographic system automatically.