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.:
Date of Patent:
Jun. 07, 1988
Filed:
Dec. 23, 1986
Applicant:
Inventors:
Mitsuru Ogura, Nara, JP;
Kenji Okada, Yamatokoriyama, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 / ; 355 15 ; 355 71 ;
Abstract
A detector mechanism for detecting the condition when a waste toner container is full of waste toner. A piston is provided which moves in response to the waste toner pressure in the waste toner container, a shutter is provided in the path of light irradiating the photoreceptor so as to close or open the light path, and a wire is provided which is connected between the piston and the shutter and forces the shutter to move in the direction for closing the light path according to the piston movement when the toner container is full of waste toner.