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:
Oct. 11, 2011

Filed:

Mar. 11, 2009
Applicants:

Yoshitaka Imanaka, Osaka, JP;

Shinki Miyaji, Osaka, JP;

Inventors:

Yoshitaka Imanaka, Osaka, JP;

Shinki Miyaji, Osaka, JP;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 21/18 (2006.01); G03G 15/02 (2006.01); G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An image forming apparatus includes a plurality of image forming units arranged in parallel, each image forming unit having an image carrying member and a charging roller disposed face to face with the image carrying member for electrically charging the image carrying member, and a shifting mechanism for selectively shifting at least one charging roller between a first position where the charging roller is brought into contact with the corresponding image carrying member to electrically charge the image carrying member in contact manner and a second position where the charging roller is moved away from the corresponding image carrying member to electrically charge the image carrying member in non-contact manner.


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