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 8811839 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 19, 2014

Filed:

Apr. 26, 2012
Applicant:

Shigehiro Furukawa, Kanagawa, JP;

Inventor:

Shigehiro Furukawa, Kanagawa, JP;

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

Provided is a toner recovery device including a toner recovery path, a vibration exciter that applies vibration to the toner recovery path, a detector that detects vibration of the toner recovery path, a determining unit that determines whether characteristics based on the vibration detected by the detector have reached predetermined reference vibration characteristics, and an output unit that outputs the result of the determination by the determining unit.


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