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:
Dec. 31, 2019
Filed:
Jan. 09, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Kiyoharu Kakomura, Nagareyama, JP;
Noriaki Matsui, Kashiwa, JP;
Yuya Ohta, Abiko, JP;
Takayuki Inoue, Matsudo, JP;
Nozomi Kumakura, Matsudo, JP;
Naoka Omura, Matsudo, JP;
Junichiro Nakabayashi, Kashiwa, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image forming apparatus () is capable of continuing, when detecting running out of sheet in a cassette () during image formation, the image formation by performing switching to another cassette (). When it is determined that sheets are run out based on a signal supplied from a sheet sensor () of a cassette being used after exposure is started based on image data of a certain page, cleaning is performed on a secondary transfer roller () and exposure is started based on the image data of a target page before the cleaning is terminated.