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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 5475469 B1

PDFFull Text
Date of Patent:
Dec. 12, 1995

Filed:

Oct. 17, 1994

Image forming equipment with depletion detection in an toner endless

Applicant:
Inventors:

Hideki Okada, Nagano, JP;

Kiyoharu Momose, Nagano, JP;

Junichiro Shinozaki, Nagano, JP;

Yoshinori Miyazawa, Nagano, JP;

Assignee:

Seiko Epson Corporation, Tokyo, JP;

Attorney:

Sughrue, Mion, Zinn, Macpeak & Seas

Primary Examiner:

Joan H Pendegrass

Int. Cl.
CPC ...
G03G / ; G03G / ;
U.S. Cl.
CPC ...
355203 ; 355245 ; 355298 ;
Abstract

Image forming equipment, which includes a developing device for supplying toners to the surface of a photosensitive member and developing a latent image on the surface of the photosensitive member to thereby form a toner image; a cleaning device for removing and collecting residual toners adhered to the surface of the photosensitive member after the toner image formed by the developing device is transferred to paper; a toner delivery device interposed in a closed loop between the developing device and cleaning device for delivering part of the surplus toners that have not been used for development in the development device to the cleaning device and for delivering the residual toners collected by the cleaning device to the developing device; and a toner tank for supplying toners to a toner delivery path R of the toner delivery device, is provided. In the image forming equipment, by providing a detection system for detecting the depletion of the toners with respect to the toner delivery path, the residual quantity of toners can be detected positively without increasing the size of the developing device.

Find Patent Forward Citations

Okada, Hideki. (1995). Image forming equipment with depletion detection in an toner endless (U.S. Patent No. 5475469). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5475469

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

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