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:
Apr. 06, 1993
Filed:
Oct. 10, 1991
Masatoshi Kimura, Ebina, JP;
Sachio Sasaki, Yokohama, JP;
Hideaki Iwasaki, Kawasaki, JP;
Kunihiko Sato, Zama, JP;
Masao Konishi, Hachioji, JP;
Akiyoshi Iwamasa, Ebina, JP;
Toshio Tooda, Kawasaki, JP;
Hiroshi Nou, Yokohama, JP;
Shigenobu Utaka, Kawasaki, JP;
Ryo Kitao, Yokohama, JP;
Fujitsu Limited, , JP;
Abstract
A toner image transferring device is applied to, for example, an electrophotographic printer for electrostatically transferring a charged toner image from a photosensitive drum to a sheet or paper. The device encompasses a transfer charger disposed near the drum to form a clearance therebetween for feeding an electric charge to the sheet or paper through which the sheet or paper is passed, an electric source for supplying an electric energy to the transfer charger to give the sheet or paper an electric charge having a polarity opposite to that of the charge of the toner image, and a controller for controlling the electric energy output from the electric source the transfer charger so that a leading edge of the sheet or paper can be prevented from being excessively charged.