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.

Date of Patent:
Oct. 08, 2024

Filed:

Nov. 16, 2022
Applicant:

Fujifilm Business Innovation Corp., Tokyo, JP;

Inventors:

Masayuki Shimoda, Kanagawa, JP;

Masafumi Kudo, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0887 (2013.01); G03G 15/081 (2013.01);
Abstract

A developing device includes: a rotating member that delivers a developer to an image holding body while rotating, and has a minimum distance with a housing at a portion from delivery of the developer to the image holding body to release of the developer as viewed in an axial direction of the rotation; a supply member that extends in the axial direction, is disposed diagonally below the rotating member as viewed from the axial direction, and transports the developer while rotating to supply the developer to the rotating member; and a pair of flow path walls that are disposed above the supply member and sandwich a flow path connecting from an inside to an outside of the housing in an upward-downward direction, the flow path having a first flow path width of an inner flow path opening on an inner side of the housing in the flow path as viewed from the axial direction equal to or larger than the minimum distance, and a second flow path width of an outer flow path opening on an outer side of the housing in the flow path as viewed from the axial direction larger than the first flow path width.


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