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:
Jan. 07, 1992
Filed:
Dec. 18, 1990
Hiroshi Kikuchi, Tokyo, JP;
Kiyoshi Matsuda, Tokyo, JP;
Hisao Ono, Tokyo, JP;
Yoshiharu Momiyama, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
A mechanism for mounting and removing a toner cartridge in a development device for use in an electrophotographic recording apparatus or a photocopier includes a rotating member for mounting a cartridge filled with toner for replenishing onto a main body at a set position and opening a toner opening. A cross-shaped projection on the main body and a cross-shaped groove on the cartridge are provided for preventing lifting of the cartridge when the rotating member is rotated in one direction. The rotating member is rotated from the set position in another opposite direction, and is subsequently returned to the set position to have the projection and the groove engaged or disengaged.