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:
Sep. 24, 1996
Filed:
Jan. 17, 1995
Applicant:
Inventors:
Makoto Arai, Tokyo, JP;
Norimasa Sohmiya, Souka, JP;
Masakuni Konja, Souka, JP;
Satoshi Takano, Tokyo, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355271 ; 355296 ;
Abstract
An image forming apparatus capable of preventing toner deposited on an image carrier from being transferred to an image transfer belt and capable of removing the toner transferred to the belt without lowering a copying speed. When an image transfer medium is absent at a nip formed by the belt and an image carrier contacting each other, a charge of the same polarity as a charge assigned to image transfer is applied from a high-tension power source to the belt.