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:
Oct. 06, 2015
Filed:
Sep. 12, 2013
Takamichi Orikasa, Kanagawa, JP;
Fumihito Itoh, Kanagawa, JP;
Tomohiko Saito, Kanagawa, JP;
Atsushi Satoh, Kanagawa, JP;
Takamichi Orikasa, Kanagawa, JP;
Fumihito Itoh, Kanagawa, JP;
Tomohiko Saito, Kanagawa, JP;
Atsushi Satoh, Kanagawa, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A charging device includes a discharge electrode configured to charge a surface of an image carrier; a charging device body including an opening portion that is provided so as to surround the discharge electrode and be opposed to a surface of the image carrier across a longitudinal direction of the discharge electrode; a charging duct member that is provided so as to surround at least the entire opening portion and configured to introduce and exhaust an airflow within the surrounded area; an intake unit configured to generate an airflow to be guided into the charging duct member; and an exhaust unit configured to exhaust the airflow guided. The charging duct member includes an airflow wall forming unit for covering, with an airflow wall, the entire opening portion from an upstream end to a downstream end in a rotation direction of the image carrier at the opening portion.