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:
Jul. 24, 1990
Filed:
Jan. 27, 1989
Applicant:
Inventors:
Shinya Tomura, Kanagawa, JP;
Sachiko Yasuda, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430102 ; 430111 ; 430903 ;
Abstract
A method for developing electrostatic latent images on the surface of a photosensitive drum uses a one-component developer. The developer has an amount of triboelectric charge within the range of about 30-100 .mu.m c/m.sup.2, and a true specific gravity of at least about 1.2. The developer can be sufficiently moved to the electrostatic latent image so as to prevent fogging of developed images and to consistently obtain developed images of good quality.