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:
Jun. 09, 2009
Filed:
Jul. 14, 2006
Applicants:
Atsuyuki Katoh, Tenri, JP;
Hiroshi Ishii, Osaka, JP;
Inventors:
Atsuyuki Katoh, Tenri, JP;
Hiroshi Ishii, Osaka, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 21/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A partition is provided to isolate a space from outside thereof, the space encompassing a space where an image holding member, a developing device, a charging device, a transfer device, and a fixing device. The isolated space is under reduced pressure. This allows the image forming apparatus to avoid negative effect caused by humidity change.