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.

Date of Patent:
Jul. 20, 2010

Filed:

Oct. 13, 2004
Applicants:

Noriyuki Mizutani, Kanagawa, JP;

Yuusaku Shibuya, Kanagawa, JP;

Masanobu Ninomiya, Kanagawa, JP;

Toshiyuki Yano, Kanagawa, JP;

Inventors:

Noriyuki Mizutani, Kanagawa, JP;

Yuusaku Shibuya, Kanagawa, JP;

Masanobu Ninomiya, Kanagawa, JP;

Toshiyuki Yano, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/107 (2006.01);
U.S. Cl.
CPC ...
Abstract

A cleaner-less image forming method includes forming an electrostatic latent image on a electrostatic latent image carrying member; developing the electrostatic latent image with a developer comprising a toner and a carrier to form a toner image; and transferring the toner image. The carrier has a median of an arithmetic average height distribution of from 0.45 to 0.65 μm, and the toner includes an external additive and has an average circularity of 0.975 or more.


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