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:
Jul. 02, 1996
Filed:
Mar. 22, 1995
Kazuo Asano, Kanagawa, JP;
Koji Masuda, Kanagawa, JP;
Takuo Kusano, Tokyo, JP;
Ken Ebihara, Shizuoka, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Nippon Light Metal Company, Ltd., Tokyo, JP;
Nikkei Techno-Research Co., Ltd., Tokyo, JP;
Abstract
It is an object of the invention to provide a dielectric drum where manufacturing costs can be reduced while keeping pressure resistance high and having an anodic oxidized film with a uniform dielectric characteristic, and also to provide an electrostatic recording device which is inexpensive and provides a high image reliability using the dielectric drum. According to the present invention, a dielectric drum includes an aluminum substrate and a dielectric layer of an anodic oxidized film on the surface of the aluminum substrate. The aluminum substrate is produced by conducting a drawing and hardening treatment M on an aluminum alloy pipe of the 5000 series alloys of the Aluminum Association. Also, the dielectric drum is used to construct an electrostatic recording device. The electrostatic recording device includes toner image forming means for forming a toner image on a dielectric drum, and pressure applying means for transferring by pressure or transferring and fixing by pressure the toner image on the dielectric drum to a member to be transferred.