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. 26, 1990
Filed:
Jul. 10, 1989
David K Shogren, Ontario, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An optical scanning system is provided which enables a simplex to duplex copying operation without requiring the original documents to be oriented in opposite directions at the exposure station. The invention comprises a first imaging system which accomplished a scan of the first document in a first direction (e.g. left to right). At the end of the first scan of the first document, a second document is scanned in the reverse direction by a second, relay lens system which, in one embodiment, is moved into the optical path to replace the first lens. An optical reversion is thus accomplished which permits the duplex operation to be accomplished and images of the first and second documents to be formed in proper orientation on the output duplex copies.