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:
Apr. 15, 2014

Filed:

Mar. 07, 2011
Applicants:

Junya Hirayama, Takarazuka, JP;

Toshiya Natsuhara, Takarazuka, JP;

Takeshi Maeyama, Ikeda, JP;

Shigeo Uetake, Takatsuki, JP;

Nofumi Mizumoto, Nara, JP;

Makiko Watanabe, Uji, JP;

Inventors:

Junya Hirayama, Takarazuka, JP;

Toshiya Natsuhara, Takarazuka, JP;

Takeshi Maeyama, Ikeda, JP;

Shigeo Uetake, Takatsuki, JP;

Nofumi Mizumoto, Nara, JP;

Makiko Watanabe, Uji, JP;

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

Provided is a deposited-toner measuring apparatus capable of accurate detection of the amount of toner deposited on the toner carrying member, and an image forming apparatus equipped with the aforementioned measuring apparatus and capable of controlling the amount of toner deposited on the toner carrying member to a desired level so as to provide stable image quality at all times. A deposited-toner measuring apparatus that removes a toner layer in a part of the surface of the toner carrying member, detects change in the capacitance at the portion with a toner layer and the portion without such a toner layer, and detects the amount of the deposited toner based on the detection result of the said change in the capacitance.


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