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. 24, 2012
Filed:
May. 17, 2010
Akihiko Sakai, Abiko, JP;
Akihiko Sakai, Abiko, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus which is capable of avoiding unnecessary switching operation to switch between a one-sided printing and a two-sided printing to improve print productivity. A printing mode is switched between a two-sided printing mode to continuously form images on first sides of a predetermined number of sheets and to alternately form images on second sides of sheets conveyed along a sheet re-feeding conveyance path and on the first sides of sheets fed from a sheet feeding unit, and a one-sided printing mode without using the sheet re-feeding conveyance path. It is determined that, when a one-sided print job is performed between a two-sided print jobs, whether the one-sided print job is performed in the two-sided printing mode as-is or in the one-sided printing mode, depending on whether the number of sheets continuously printed by the one-sided print job is more than a predetermined number.