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:
May. 27, 1997
Filed:
Sep. 12, 1994
Applicant:
Inventors:
Shigeki Takenouchi, Hachioji, JP;
Kazuhiko Sato, Hachioji, JP;
Assignee:
Konica Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
399315 ; 399 44 ; 399 66 ;
Abstract
An image forming apparatus has a photoreceptor which has a radius of curvature of more than 35 mm at a transfer position or a separation position, a transfer roller provided at the transfer position where the transfer roller faces the photoreceptor, a transfer power supply source to supply a predetermined DC bias current onto the transfer roller, a conductive brush-shaped separation device provided at the separation position where the separation device faces the photoreceptor, and a separation power supply source to supply a variable DC bias voltage onto the separation device.