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:
Apr. 19, 1994
Filed:
Oct. 13, 1992
Hajime Murakami, Kusatsu, JP;
Mizuho Okada, Moriyama, JP;
Ishihara Sangyo Kaisha, Ltd., , US;
Abstract
Disclosed is a method of electrophotographic image formation according to which images of high quality can be reproduced with always stable density. This method which includes the step of image formation which comprises forming a static latent image on a photoreceptor by carrying out charging and exposing and then developing is characterized in that maximum image density is maintained constant by measuring surface potential of maximum image density portion just before development and setting developing bias potential based on the above measured surface potential so that difference between the surface potential and developing bias potential becomes constant.