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:
Apr. 24, 2012
Filed:
Mar. 09, 2011
Yasuo Fukatsu, Abiko, JP;
Hitoshi Kato, Toride, JP;
Naoki Ishikawa, Kashiwa, JP;
Tomoharu Sato, Abiko, JP;
Yasuo Fukatsu, Abiko, JP;
Hitoshi Kato, Toride, JP;
Naoki Ishikawa, Kashiwa, JP;
Tomoharu Sato, Abiko, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A sheet processing apparatus includes a folding roller pair, a sheet pushing member, and a detection unit. The folding roller pair folds a sheet or a sheet bundle by a nip portion. The sheet pushing member results in a tip pushing a portion between two ends of the sheet or sheet bundle into the nip portion and then performs a tip returning operation. The detection unit detects whether the tip reaches a predetermined position within a predetermined time. When the tip does not reach the predetermined position within the predetermined time, the sheet pushing member retries the pushing operation after performing the returning operation. When the tip reaches the predetermined position within the predetermined time, the sheet pushing member stops the pushing operation and controls rotation driving of the folding roller pair such that the folding roller pair starts to convey the sheet or sheet bundle.