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 6892045 B1

PDF
Full Text
Expired
Date of Patent:
May. 10, 2005

Filed:

May. 14, 2003
Applicants:

Hiroyuki Tokimatsu, Tokyo, JP;

Junichi Ohtani, Tokyo, JP;

Inventors:

Hiroyuki Tokimatsu, Tokyo, JP;

Junichi Ohtani, Tokyo, JP;

Assignee:

Konica Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G021/00 ;
U.S. Cl.
CPC ...
Abstract

This invention relates to an image forming apparatus which employs a recycling scheme of recovering and reusing transfer residue toner, and a convey control method for recycle toner. In order to prevent a phenomenon such as fogging or character thickening, a toner recycle mechanism shares one driving source with a photosensitive body or fixing unit, and includes an electromagnetic clutch for switching driving force transmission to the recycling means when driving the photosensitive body or fixing unit, and a controller which controls power supply to the electromagnetic clutch. The convey control method for recycle toner includes the steps of starting copying, measuring a printing ratio of an image pattern per image, and suppressing a return amount of the recycle toner when the printing ratio of the image pattern is low.


Find Patent Forward Citations

Tokimatsu, Hiroyuki. (2005). Image forming apparatus and convey control method for recycle toner (U.S. Patent No. 6892045). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6892045

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