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:
May. 16, 1995
Filed:
Feb. 04, 1994
John M Magde, Jr, Webster, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An image processing apparatus having a corona device with a charging grid for charging a photoreceptor to voltage levels, a developer for applying toner to the photoreceptor, and a corona control responsive to the signal for charging the photoreceptor by adjusting the photoreceptor voltage levels in relation to discrete photoreceptor segments. The adjustment of voltage levels is done by providing signals from a sensor in response to developing a series of test patches on the photoreceptor, relating the signals from the sensor to a given test patch, associating each of the test patches to a given segment of the photoreceptor, and adjusting the charging grid to a given voltage for each segment of the photoreceptor in response to the signals from the test patches on the photoreceptor.