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. 24, 2015
Filed:
Jul. 23, 2012
Yoshio Hattori, Kanagawa, JP;
Toshio Koike, Tokyo, JP;
Hiroaki Okamoto, Kanagawa, JP;
Atsushi Nakamoto, Kanagawa, JP;
Yoshiyuki Fukuda, Tokyo, JP;
Yoshio Hattori, Kanagawa, JP;
Toshio Koike, Tokyo, JP;
Hiroaki Okamoto, Kanagawa, JP;
Atsushi Nakamoto, Kanagawa, JP;
Yoshiyuki Fukuda, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A development device includes a development casing for containing two-component developer, a developer bearer, a developer regulator to adjust an amount of developer carried on the developer bearer, a first developer conveyance member to supply developer to the developer bearer, a second developer conveyance member to transport axially developer separated from the developer bearer, first and second conveyance channels divided by a partition, in which the first and second developer conveyance members are respectively provided, and a removable sheet member to cover the developer bearer in an area facing the developer regulator, the first and second conveyance channels, and the partition. A first end portion of the sheet member extends from the second conveyance channel outside the development casing through a through hole formed in the development casing, and a second end portion thereof is retained by a retainer at a position outside the developer regulator.