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:
Nov. 25, 1997
Filed:
Feb. 09, 1996
Yoshiaki Okano, Tokyo, JP;
Hiroshi Hashizume, Tokyo, JP;
Hirotaka Fukuyama, Tokyo, JP;
Kouichirou Satou, Tokyo, JP;
Tetsuya Nakamura, Tokyo, JP;
Satoshi Katagata, Tokyo, JP;
Michihisa Iguchi, Tokyo, JP;
Seiji Arai, Tokyo, JP;
Chinobu Sakai, Tokyo, JP;
Takahito Kabai, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
At start of rotation of a photosensitive drum, rotation of a developing roller caused by a developing/register rollers driver is kept stopped until a time required for a predetermined point on the photosensitive member, which was located at a charging position when charging thereof by a charging device was started, to reach a development position elapses, and thereafter the developing roller is rotated by the developing/register rollers driver. When the predetermined point on the photosensitive member, which was located at the developing position when at least rotation of the photosensitive member was started, passes the transfer position, a roller cleaning voltage having the same polarity as the charge polarity of toner is applied to a transfer roller.