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:
Jul. 03, 2012
Filed:
Apr. 09, 2008
Ichiro Sasaki, Toride, JP;
Naohisa Nagata, Moriya, JP;
Akinobu Nishikata, Abiko, JP;
Satoru Yamamoto, Abiko, JP;
Hiroshi Matsumoto, Toride, JP;
Ichiro Sasaki, Toride, JP;
Naohisa Nagata, Moriya, JP;
Akinobu Nishikata, Abiko, JP;
Satoru Yamamoto, Abiko, JP;
Hiroshi Matsumoto, Toride, JP;
Canon Kabushiki Kaisha, , JP;
Abstract
An image forming apparatus/method transports a sheet to an image forming unit that can form images on both sheet sides. The sheet is fed to the image forming unit at a predetermined image formation start timing for the first side image formation, thereafter is reversed, and re-fed to the image forming unit for the second side image formation while the first side image-formed sheet waits at least one of sheet waiting positions. A full state, where all the sheet waiting positions are full of the first side image-formed sheets, is detected. The number of sheets transported is controlled so that it is greater than the number of the sheet waiting positions. When the full state is detected, the sheet re-feeding is controlled so that a head sheet among the first side image-formed sheets waiting at the sheet waiting positions is fed in advance of the predetermined image formation start timing.