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. 10, 2009
Filed:
Sep. 28, 2005
Hiroshi Kubota, Osaka, JP;
Yasuyuki Ishiguro, Osaka, JP;
Takeshi Takayama, Nara, JP;
Jun Yamaguchi, Nara, JP;
Hiroshi Kawahito, Nara, JP;
Yuhsuke Yoshimoto, Nara, JP;
Hiroshi Kubota, Osaka, JP;
Yasuyuki Ishiguro, Osaka, JP;
Takeshi Takayama, Nara, JP;
Jun Yamaguchi, Nara, JP;
Hiroshi Kawahito, Nara, JP;
Yuhsuke Yoshimoto, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
By rotating a first and a second screw axle, developer is repeatedly cyclically carried from a first developer path, via an opening portion, a second developer path and an opening to return to the first developer path. While being recirculated and carried, the developer is stuck to an external peripheral face of a development roller, and is carried to a development region between the development roller and a photosensitive drum, wherein an electrostatic latent image on the photosensitive drum is developed by the toner. Furthermore, a first cut-out portion is formed on the first screw axle, and a second and third cut-out portions are formed on the third screw axle, and thus by allowing the developer to back flow from the recycle transport path to the toner supply path, the developer can mix with the toner in the toner supply path, and it is possible to prevent solidification of the toner in the toner supply path.