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:
Oct. 10, 2017
Filed:
Jan. 21, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Sho Shirakata, Kawasaki, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A developing device includes a developer carrying member for developing an electrostatic image with a developer, a developer container including a developer accommodating portion, a developing opening, and a developing chamber, and a developer supplying member that includes a shaft member, a first feeding member, and a second feeding member. The first feeding member has a length Lmeasured in an axial direction of the developer carrying member and has a rotational radius Rmeasured from a rotation center of the shaft member, and the second feeding member has a length L. When a length of the developing opening is L, a shortest length from the developing opening to the shaft member is L, and a length from the developer carrying member to the shaft member is L, the following relationships are satisfied: L<L<L, and L<R<L