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. 29, 1993
Filed:
Oct. 02, 1991
Masao Ariga, Kawasaki, JP;
Hiroyuki Hattori, Inagi, JP;
Katsuichi Shimizu, Hoya, JP;
Hirotoshi Kishi, Hoya, JP;
Hiroshi Ogawa, Kawasaki, JP;
Takahiko Amanuma, Tokyo, JP;
Kazumi Umezawa, Kawasaki, JP;
Seiji Sagara, Kawasaki, JP;
Kenji Kurita, Mitaka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A document scanning apparatus includes a first scanner for reciprocating an optical member and for exposing an original document put on a document platen, and a second scanner for feeding an original document to an exposure position and for exposing the original document at the exposure position. A selector selects either the first scanner in a stationary exposure mode or the second scanner in a dynamic exposure mode. In the stationary exposure mode, a controller causes forward movement of the reciprocating optical member to stop and the reciprocating member to move backward in accordance with a detection signal signifying that the trailing edge of a recording sheet has passed a predetermined position in the transport path for the recording sheet. In the dynamic exposure mode, the controller controls the second scanner to feed successive original documents in accordance with the same detection signal for the trailing edge of the recording sheet.