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. 10, 2002
Filed:
Nov. 24, 2000
Richard H. Berg, Rochester, NY (US);
Charles T. Facchini, II, Webster, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A firmware sensoring system and method includes a driving and control portion for rotating a cam shaft to actuate various maintenance operations of a maintenance station. In various exemplary embodiments, the driving and control portion includes a sensor wheel that rotates with the cam shaft. In an exemplary embodiment, the sensor wheel has an optical window formed therein. The optical window may be aligned with an optical relay in both an extreme clockwise position of the cam shaft and an extreme counterclockwise position of the cam shaft. Depending on whether the optical window is aligned with the optical relay or not, the optical relay is in either a closed-circuit condition or an open-circuit condition. The condition of the optical relay is communicated to or sensed by a controller that rotates the cam shaft.