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:
Jun. 24, 2014
Filed:
Aug. 19, 2011
Shareef F. Alshinnawi, Durham, NC (US);
Margaret M. Quinn, Cary, NC (US);
Edward S. Suffern, Chapel Hill, NC (US);
J. Mark Weber, Wake Forest, NC (US);
Shareef F. Alshinnawi, Durham, NC (US);
Margaret M. Quinn, Cary, NC (US);
Edward S. Suffern, Chapel Hill, NC (US);
J. Mark Weber, Wake Forest, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method of printing on a sheet of paper comprises drawing a first sheet of paper from a first paper source into a printer having an optical scanner and a print head, scanning a first face of the first sheet to determine the presence or absence of print thereon. In response to detecting print on the first face, the print head is caused to print an obstruction on the first face. In response to detecting no print on the first face, the print head is caused to print new matter on the first face. The method enables a printer to accept used paper while eliminating confusion over which face contains the new matter.