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. 17, 2009
Filed:
Aug. 01, 2006
Shinichi Kamoshida, Nagano-ken, JP;
Atsunori Kitazawa, Nagano-ken, JP;
Tadahiro Mizutani, Nagano-ken, JP;
Ken Ikuma, Nagano-ken, JP;
Kazuyoshi Ohashi, Nagano-ken, JP;
Shinichi Kamoshida, Nagano-ken, JP;
Atsunori Kitazawa, Nagano-ken, JP;
Tadahiro Mizutani, Nagano-ken, JP;
Ken Ikuma, Nagano-ken, JP;
Kazuyoshi Ohashi, Nagano-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An image forming apparatus has an image carrier with rotary shafts extending from both ends that are rotatably supported on an apparatus body by bearings. Gap members fixed to both end portions of a charging roller are brought in contact with the peripheral surface of the image carrier with some pressure to form a charge gap between the image carrier and the charging roller so that the charging roller charges the image carrier in a non-contact state with the charge gap. The gap members have a small-diameter portion on the inside thereof and a large-diameter portion on the outside thereof such that the small-diameter portions face each other.