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:
Sep. 06, 2011
Filed:
Dec. 11, 2009
Kenji Morita, Toride, JP;
Shigemichi Hamano, Abiko, JP;
Nobuo Sekiguchi, Moriya, JP;
Akiko Kanno, Kashiwa, JP;
Satoshi Seki, Toride, JP;
Kenji Morita, Toride, JP;
Shigemichi Hamano, Abiko, JP;
Nobuo Sekiguchi, Moriya, JP;
Akiko Kanno, Kashiwa, JP;
Satoshi Seki, Toride, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An original-feeding device includes an original tray, a pickup roller configured to be lowered onto originals stacked on the tray and to feed one of the originals, the pickup roller configured to be lifted up after the feeding, a conveyor configured to convey the fed original, a length detector configured to detect a length of the conveyed original, an original sensor configured to detect a trailing edge of the conveyed original, and a controller configured to control the pickup roller either in a first mode in which the pickup roller is lowered in accordance with a detected length of the original or in a second mode in which the pickup roller is lowered at the detection of a trailing edge of the original. The controller changes the first mode to the second mode if lengths of the originals detected by the length detector vary.