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:
Aug. 04, 2020
Filed:
May. 24, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Ryota Fujioka, Kashiwa, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image forming apparatus detects a current flowing between a developer carrying member and a cleaning member is detected for each of a plurality of toner images when a region on the developer carrying member passes through the cleaning member, and a potential difference to be used during image formation between the developing voltage and an image portion potential is set on the basis of a value of the detected current for each of the plurality of toner images. An absolute value of the potential difference to be used during image formation is larger than the potential difference between the developing voltage and the image portion potential whose absolute value is smallest among potential differences between the developing voltage and the image portion potential to be used for developing a toner image of which the value of the current detected is in a predetermined range among the plurality of toner images.