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:
May. 20, 2025

Filed:

Jul. 21, 2023
Applicant:

Konica Minolta, Inc., Tokyo, JP;

Inventor:

Junji Murauchi, Toyokawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01); G03G 15/00 (2006.01); G03G 15/10 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0868 (2013.01); G03G 15/104 (2013.01); G03G 15/556 (2013.01); G03G 2215/00611 (2013.01); G03G 2215/0695 (2013.01);
Abstract

An electrophotographic image forming apparatus includes: a replacement detector that detects that a toner bottle has been replaced; a developer that develops an electrostatic latent image by using a toner supplied from the toner bottle and stored; a fog detector that detects a fog amount; and a determiner that determines whether or not the detected fog amount continuously exceeds a predetermined threshold value in a state where a toner supplied from a toner bottle before replacement and a toner supplied from a toner bottle after replacement are mixed in the developer.


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