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, 2018
Filed:
May. 22, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Kyosuke Takahashi, Toride, JP;
Atsushi Matsumoto, Toride, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image forming apparatus includes an image forming portion having a first feeding member to feed developer in a first chamber, a second feeding member to feed the developer in a second chamber; and a control portion to execute a plurality of modes by suspending image forming. A first mode circulates the developer in a condition in which a ratio of a rotational speed of the developer bearing member to a rotational speed of the first and second feeding members is decreased as compared to that in forming the images; and a second mode increases the ratio of the rotational speed of the developer bearing member to the rotational speed of the first feeding member as compared to that in forming the images. The second mode is executed after the first mode and before resuming the image forming operation.