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:
Nov. 22, 1983
Filed:
Nov. 05, 1981
Jacob N Kluger, Rochester, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
In xerography, registration method and apparatus for a variable pitch copier. The invention has particular utility in achieving a speed and position match between a copy sheet and an image on a photoconductor as the copy sheet approaches an image transfer station. According to the invention the speed and position of both image and copy sheet are monitored and updated by a programmed microprocessor. Controlled accelerations and brakings of a copy sheet drive motor under microprocessor control first achieve registration and then maintain that registration as the image transfer occurs. The disclosed registration automatically adjusts for variable spacings between successive images about the periphery of the photoconductor to accommodate various image sizes.