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 7609993 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 27, 2009

Filed:

Oct. 02, 2006
Applicants:

Masahiro Maeda, Shiojiri, JP;

Yoichi Yamada, Shiojiri, JP;

Mamoru Mizunokura, Nagano, JP;

Takatomo Fukumoto, Shiojiri, JP;

Fuyuto Yamashita, Iwata, JP;

Inventors:

Masahiro Maeda, Shiojiri, JP;

Yoichi Yamada, Shiojiri, JP;

Mamoru Mizunokura, Nagano, JP;

Takatomo Fukumoto, Shiojiri, JP;

Fuyuto Yamashita, Iwata, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/16 (2006.01); G03G 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An image forming apparatus, includes: a developer moving element that moves developer in order to transfer the developer onto a medium by rotating with the developer being borne on the developer moving element; and a collector for collecting the developer that has not been transferred onto the medium and remains on the developer moving element, the collector having a scraper blade that can abut against and separate from the developer moving element and that is for scraping off the developer on the developer moving element by abutting against the developer moving element, a sealing member that can contact with and separate from the developer moving element and that is for preventing, by contacting the developer moving element, the developer from spilling outside the collector, a ventilation opening for moving air in the collector outside the collector, and a valve for adjusting an amount of air passing through the ventilation opening, and the collector being made such that when either one of the scraper blade and the sealing member, whichever separates earlier from the developer moving element, starts separating therefrom, air can pass through the ventilation opening.


Find Patent Forward Citations

Maeda, Masahiro. (2009). Image forming apparatus that prevents developer from spilling (U.S. Patent No. 7609993). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7609993

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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