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:
Jan. 13, 2015
Filed:
Oct. 13, 2011
Ken Amemiya, Tokyo, JP;
Michiya Okamoto, Kanagawa, JP;
Takuma Iwasaki, Kanagawa, JP;
Shinya Karasawa, Kanagawa, JP;
Yuta Azeyanagi, Kanagawa, JP;
Ken Amemiya, Tokyo, JP;
Michiya Okamoto, Kanagawa, JP;
Takuma Iwasaki, Kanagawa, JP;
Shinya Karasawa, Kanagawa, JP;
Yuta Azeyanagi, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A charging device, which is incorporable in a process cartridge and an image forming apparatus, includes a charging roller and a cleaning device. The charging roller charges an image bearing member having a surface on which an electrostatic latent image is formed. The cleaning device cleans the charging roller. The cleaning device includes a cleaning roller, a shaft, and support members. The cleaning roller contacts the surface of the charging roller to clean the surface. The support members rotatably support the cleaning roller, each of which including a slot. The slot allows a variable distance between the charging roller and the cleaning roller, and is inclined, in the direction of rotation of the charging roller, relative to a straight line connecting the rotation center of the charging roller and the rotation center of the cleaning roller.