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:
Apr. 23, 1996
Filed:
Jun. 18, 1993
Walter F Wafler, Rochester, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A digital copier includes an automatic copy quality correction and calibration method that corrects a first component of the copier using a known test original before attempting to correct other components that may be affected by the first component. Preferably, a scanner subsystem is first calibrated by scanning a known original and electronically comparing the scanned digital image with a stored digital image of the original. A hard copy of a known test image is then printed by a printer subsystem and the calibrated scanner subsystem scans the hard copy. The scanned digital image is electronically compared with the test image and the printer subsystem is calibrated based on the comparison.