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:
Aug. 14, 2001
Filed:
Sep. 14, 2000
Mark A. Omelchenko, Lexington, KY (US);
Robert M. Lofthus, Honeoye Falls, NY (US);
Daniel W. Costanza, Webster, NY (US);
Olga Y. Ramirez, Marlborough, MA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
In color printing with a color registration system for the registration of plural color images on an image bearing surface, such as a photoreceptor belt of a color printer, registration marks are imaged on the image bearing surface, which registration marks correspond to the color images and are sensed by a registration marks sensor. The system first automatically images first registration marks, preferably “Z” targets, which provide wider initial misregistration latitude for the sensor for gross registration. When an initial registration is achieved, the system automatically switches to imaging second registration marks, preferably chevron targets, providing higher registration accuracy for the sensor. These registration targets may be generated along opposite sides of the image area on opposite sides of the photoreceptor or other belt.