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:
Jan. 02, 1979
Filed:
May. 27, 1977
John F Gauronski, Rochester, NY (US);
Thomas A Havel, Rochester, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A document sensing and control system for a document handling system for feeding documents across the imaging station of a copier. At a document input area two document sensors are centrally positioned respectively at the upstream and downstream sides of a pre-registration gate to sense the presence or absence of documents to control the document handling system in a desired manner during its operating cycle. Protection is provided, without requiring additional sensors, against improper insertion of documents into the document handling unit, over or under sized documents, document misfeeding, and lifting of the document handling unit away from the platen.