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:
Jun. 07, 2005
Filed:
Jun. 24, 2002
Shinichiro Yagi, Shizuoka, JP;
Naohito Shimota, Shizuoka, JP;
Tatsuya Niimi, Shizuoka, JP;
Satoshi Mochizuki, Shizuoka, JP;
Hiroaki Matsuda, Shizuoka, JP;
Tomomi Tamura, Shizuoka, JP;
Shinichiro Yagi, Shizuoka, JP;
Naohito Shimota, Shizuoka, JP;
Tatsuya Niimi, Shizuoka, JP;
Satoshi Mochizuki, Shizuoka, JP;
Hiroaki Matsuda, Shizuoka, JP;
Tomomi Tamura, Shizuoka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A method for forming an electrophotographic image and a device for forming an image on a transfer material by the steps for charging, exposing, developing and transferring, and recovering the toner remained untransferred in the step for cleaning by recovering, wherein the toner used in the step for developing has a total surface area ratio Z of additive, which is calculated by Z=(Ht·Wt)/(H·W), satisfies 0.5≦Z≦1.5, the electrophotographic photoconductor used comprises at least a photosensitive layer and a filler-containing protective layer provided on a conductive support in that order, and the angle of repose of the toner to the protective layer surface of the electrophotographic photoconductor is 30° or less.