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. 01, 2010
Filed:
Jun. 19, 2007
Eiichi Yoshida, Hino, JP;
Masahiko Nakamura, Hachioji, JP;
Masahiro Anno, Hachioji, JP;
Kaori Soeda, Hino, JP;
Tomoko Mine, Hino, JP;
Kenichi Onaka, Hachioji, JP;
Eiichi Yoshida, Hino, JP;
Masahiko Nakamura, Hachioji, JP;
Masahiro Anno, Hachioji, JP;
Kaori Soeda, Hino, JP;
Tomoko Mine, Hino, JP;
Kenichi Onaka, Hachioji, JP;
Konica Minolta Business Technologies, Inc., Tokyo, JP;
Abstract
Disclosed is an image forming method comprising developing a latent electrostatic image formed on the surface of a latent electrostatic image bearing body by a developer borne and conveyed by a developer bearing body which is brought into contact with a developer layer control member to control an amount of the developer on the surface of the developer bearing body through a nonmagnetic single-component development system, wherein an acid value (SAV) of the surface of the developer and a total acid value (TAV) of the developer meet the following requirements:1<SAV/TAV≦5 and 5≦TAV≦25,and a ratio of a mass average particle size (d50, μm) of the developer to a surface roughness (Ra, μm), d50/Ra being in a range of 0.5 to 3.0 and an average spacing (Sm) between protruding peaks of the developer bearing body being in a range of 20 to 200 μm.