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. 20, 2008
Filed:
Mar. 24, 2004
William P. Corbett, Lexington, KY (US);
Thomas A. Fields, Winchester, KY (US);
Allen P. Johnson, Lexington, KY (US);
Christopoher D. Jones, Georgetown, KY (US);
William P. Corbett, Lexington, KY (US);
Thomas A. Fields, Winchester, KY (US);
Allen P. Johnson, Lexington, KY (US);
Christopoher D. Jones, Georgetown, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
Systems and methods are provided for electronically adjusting an image to compensate for laser beam process direction position errors in an electrophotographic device. Initially, a bow profile is defined that characterizes the process direction position errors of a laser beam across a scan line. The device subsequently reads an image to be printed from a first memory location, performs pixel shifts on select columns thereof based upon the bow profile, and temporarily stores the adjusted image data to a second location of memory. The adjusted image data is then communicated to a printhead of the device.