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:
Oct. 20, 1987
Filed:
Dec. 02, 1985
Applicant:
Inventors:
Yoshiyuki Mimura, Hachioji, JP;
Yasuo Isono, Hachioji, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 / ; 355140 ;
Abstract
A duplicating apparatus including a charge retentive drum arranged rotatably, an electrostatic latent image forming device, a non-contact type developing device, a transferring device for transferring a toner image onto a record paper and a fixing device for fixing the toner image onto the record paper. A correction electrode is provided between the developing device and transferring device and an AC bias voltage is applied to the correction electrode to generate a vibrating electric field. Image quality of the duplicated copies can be improved by passing the toner image through the vibrating electric field.