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:
Aug. 20, 2002
Filed:
May. 25, 2001
Taisuke Kamimura, Nara, JP;
Katsumi Adachi, Nara, JP;
Kiyoshi Toizumi, Nara, JP;
Toshimitsu Goto, Yamatokoriyama, JP;
Masamitsu Sakuma, Hirakata, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
The developing device X includes: toner T that contacts an electrostatic latent image on a photosensitive drum D; a charging roller for charging the toner through contact; and an ultraviolet irradiator for charging the toner by shining ultraviolet light onto a sleeve of the charging roller from a position on the back of the sleeve via a roller . The sleeve of the charging roller contains material that changes its molecular structure under ultraviolet irradiation by the ultraviolet irradiator in such a manner to charge the toner. Deterioration of a charged member (toner) can be prevented, and so is fusion of the charged member with the charging means. Reliability in the developing process proves.