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:
Apr. 12, 2005

Filed:

Mar. 11, 2003
Applicants:

Michihito Ohashi, Yokohama, JP;

Kohji Amanai, Kawasaki, JP;

Tetsuya Nakao, Tokyo, JP;

Hideaki Sugata, Kawasaki, JP;

Toshio Shimazaki, Tokyo, JP;

Inventors:

Michihito Ohashi, Yokohama, JP;

Kohji Amanai, Kawasaki, JP;

Tetsuya Nakao, Tokyo, JP;

Hideaki Sugata, Kawasaki, JP;

Toshio Shimazaki, Tokyo, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G015/00 ;
U.S. Cl.
CPC ...
Abstract

In an image forming apparatus of the present invention including a plurality of photoconductive drums arranged side by side, each photoconductive drum is configured to allow its opposite end portions in the main scanning direction to be adjusted in maximum eccentricity position in the direction of rotation independently of each other. The maximum eccentricity positions of the drums are capable of being matched in phase to each other in the direction of rotation at each of opposite end portions.


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