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:
Aug. 26, 2008
Filed:
Sep. 16, 2005
Hisao Kurosu, Yokohama, JP;
Hisao Kurosu, Yokohama, JP;
Ricoh Company Limited, Tokyo, JP;
Abstract
A developing method including forming a magnetic brush of a two component developer comprising a toner and a magnetic carrier; and developing an electrostatic latent image with the magnetic brush, wherein the ratio (A/A) of the area (A) of the carrier-noncontact portion to the area of the development portion in which the electrostatic latent image can be developed by the magnetic brush is from 0.30 to 0.70, and the ratio (Avc/vs) of the average moving velocity (Avc) of carrier particles contacting the image bearing member to the moving velocity (vs) of the surface of the developer bearing member is from 0.8 to 1.1. Alternatively, it is possible that the ratio (A/A) is not greater than 0.50 and the ratio (Avc/vs) is from 0.3 to 1.1.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile