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.:

US 8761632 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 24, 2014

Filed:

May. 11, 2012
Applicants:

Tomoya Ichikawa, Kanagawa, JP;

Yuri Takeuchi, Kanagawa, JP;

Inventors:

Tomoya Ichikawa, Kanagawa, JP;

Yuri Takeuchi, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 21/00 (2006.01); G03G 15/01 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0126 (2013.01); G03G 2215/0177 (2013.01);
Abstract

An image forming apparatus includes an image carrier that holds a toner image, a rotary developing device including a plurality of developing units to develop an electrostatic latent image on the image carrier with toner by supplying the toner from the developing unit opposing the image carrier, a foreign-substance receiving plate that receives a falling foreign substance, a transfer unit that transfers the toner image from the image carrier onto a recording medium, and a fixing unit that fixes the transferred toner image on the recording medium. Each of the developing units includes a developer container that stores developer containing magnetic carriers and toner, and a developing roller that supplies the toner in the developer for development of the electrostatic latent image. The rotary developing device further supports a foreign-substance collecting member that magnetically collects a magnetic foreign substance on the foreign-substance receiving plate.


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