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:
Dec. 17, 1991
Filed:
Jun. 05, 1989
Tadao Yamamoto, Tokyo, JP;
Tetsuya Abe, Tama, JP;
Masaaki Dohi, Chofu, JP;
Shinichi Hisatomi, Higashimurayama, JP;
Mitsugu Oishi, Kodaira, JP;
Toshiro Honda, Mitaka, JP;
Mitsuo Hayashi, Hamura, JP;
Takeo Hirono, Akishima, JP;
Casio Computer Co., Ltd., Tokyo, JP;
Casio Electronics Manufacturing Co., Ltd., Tokyo, JP;
Abstract
A method of forming an image without cleaning on the basis of repeated electrophotographic process cycles. Each process cycle includes charging a surface of a photosensitive drum to a predetermined polarity, and irradiating the charged surface of the photosensitive drum with light which carries image information, thereby forming a latent image corresponding to the image information. The latent image is visualized by using a dry developer material, and the visualized image is transferred from the surface of the photosensitive drum onto a transfer medium. The developer material contains a transfer accelerator (hydrophobic silica or light-transmitting fine powder) for improving efficiency for transfer of the visualized image onto the transfer medium.