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:
Jul. 14, 2009
Filed:
Feb. 13, 2006
Hiroo Naoi, Nara, JP;
Mitsuru Tokuyama, Kyoto, JP;
Hiroshi Kubota, Kadoma, JP;
Kouichi Takenouchi, Tenri, JP;
Hiroo Naoi, Nara, JP;
Mitsuru Tokuyama, Kyoto, JP;
Hiroshi Kubota, Kadoma, JP;
Kouichi Takenouchi, Tenri, JP;
Sharp Kabushiki Kaisha, Osaka-shi, JP;
Abstract
An image forming apparatus of the present invention includes main control section for controlling the charging control section and the development bias control section so that a potential difference between the photoconductor potential and the development bias potential in developer discharge from the development section is smaller than that in the image forming. Therefore, even when an amount of developer in the development section decreases due to developer discharge, increase of beads-carry-over onto the photoconductor from the development section can be prevented. Accordingly, damage to the photoconductor or image errors due to incomplete cleaning that are caused by beads-carry-over can be prevented.