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:
Feb. 02, 2021
Filed:
Jan. 29, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Masafumi Takahashi, Tsukubamirai, JP;
Tomohiro Shiomi, Abiko, JP;
Teruaki Tsurusaki, Moriya, JP;
Shunichi Koga, Abiko, JP;
Osamu Ariizumi, Matsudo, JP;
Hideaki Suzuki, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A target value for a gap between a developer bearing member supported by a developing frame member and a regulating blade that is fixed to the developing frame member is determined based on input information about a local maximum peak value of magnetic flux density of a predetermined magnetic pole which is located closest to the regulating blade when the regulating blade is fixed to the developing frame member among a plurality of magnetic poles included in a magnet fixedly located inside the developer bearing member and configured to generate a magnetic field for causing a developer to be borne by the developer bearing member.