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:
Mar. 13, 2007
Filed:
Nov. 20, 2003
Applicants:
Yoichi Yamada, Nagano-ken, JP;
Takayuki Shiraki, Nagano-ken, JP;
Tatsuro Osawa, Nagano-ken, JP;
Inventors:
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/01 (2006.01);
U.S. Cl.
CPC ...
Abstract
An image forming apparatus with an image bearing member on which a latent image is formed, with a plurality of developing devices for developing the latent image, each of the developing devices containing developer, and with a turnable turning member on which the plurality of developing devices are mounted. The turning member is caused to turn based on a turn history of the turning member.