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:
Feb. 03, 2004
Filed:
Feb. 14, 2003
Toner recycle control system of electrophotographing device using viscous liquid developing solution
Motoharu Ichida, Tsubata-machi, JP;
Satoshii Moriguchi, Kanazawa, JP;
Shigeki Uesugi, Unoke-machi, JP;
Yoshiaki Kawamoto, Kanazawa, JP;
Seiichi Takeda, Kanazawa, JP;
Tadasuke Yoshida, Uchinada-machi, JP;
Yoshiaki Fujimoto, Kanazawa, JP;
Jiyun Du, Kanazawa, JP;
Masanobu Hongo, Unoke-machi, JP;
Yasuhiko Kishimoto, Uchinada-machi, JP;
Hitoshi Terashima, Kanazawa, JP;
Satoru Moto, Kanazawa, JP;
Masanari Takabatake, Kanazawa, JP;
Hideaki Shibata, Kanazawa, JP;
Tatsuo Nozaki, Unoke-machi, JP;
Yutaka Nakashima, Kanazawa, JP;
Tadashi Nishikawa, Tsubata-machi, JP;
Akihiko Inamoto, Uchinada-machi, JP;
Satoshi Miyamoto, Hakui, JP;
PFU Limited, Ishikawa, JP;
Abstract
The present invention provides a toner recycling control system which stably feeds a liquid developer of an appropriate concentration to a liquid developing apparatus employing a high-viscosity liquid developer; appropriately adjusts the concentration of residual developer collected after development and after transfer; and feeds the adjusted developer to the developing apparatus. The toner recycling control system collects a post-development residual developer from a developer-bearing body and a post-transfer residual developer from an image-bearing body; performs developer concentration adjustment to yield an adjusted developer; and feeds the adjusted developer back to the developer-bearing body. Thus, the toner recycling control system includes a concentration adjustment tank which stores the collected developer and is replenished with a concentrated developer and carrier liquid for developer concentration adjustment; and a buffer tank which receives and stores a liquid developer which has undergone concentration adjustment in the concentration adjustment tank. Once adjusted to an appropriate concentration, the liquid developer is fed to the developer-bearing body from the buffer tank.