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:
Mar. 14, 1989
Filed:
Mar. 27, 1987
Applicant:
Inventor:
Hidenobu Yamane, Yamatokoriyama, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
118657 ; 118658 ; 355 / ;
Abstract
A developing device of an electrophotographic apparatus comprising a light-sensitive member for forming an electrostatic latent image, a developing roller comprising a magnetic roller and a sleeve, the developing roller supplying a developer which is to be magnetized in the same polarity as that of the electrostatic latent image while the developer is adhered on the sleeve by a relative-rotational speed between the sleeve and the magnetic roller, and regulating means for regulating the thickness of the developer on the sleeve to be approximately equal to the distance between the light-sensitive member and the sleeve.