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:
Jun. 24, 2025

Filed:

Dec. 15, 2023
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Hirokazu Fujino, Shizuoka, JP;

Hirokazu Okugawa, Shizuoka, JP;

Shunsuke Matsushita, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01); G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0856 (2013.01); G03G 15/5016 (2013.01);
Abstract

An image forming apparatus includes a controller to i) notify first notification on an exchange of a developer supply container in a case the developer in the supply container is decreased in amount by being supplied from the supply container to a developer accommodating portion and then the developer amount of the developer in the supply container indicated by the first developer amount information reaches a predetermined developer amount, ii) to execute an operation until the supply container connected to a developing unit is exchanged after the first notification, and iii) to notify second notification notifying an end of the operation in a case that after the operation is started, a use amount of the developer from the developing unit indicated by the second developer amount information reaches the usable amount. In addition, a developing setting portion sets the usable amount depending on exchange number information and print ratio information.


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