Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Charging device including a charging roller, a charging roller cleaning member with a preselected length, an image forming apparatus using the charging device, and a method of operating the device
A charging device and method of operating the device for charging a photoreceptor of an image forming apparatus so that a latent image is formed thereupon to be developed by toner, the device including a charging roller that is configured to constantly contact the photoreceptor with a pressure so as to be rotated by rotations of the photoreceptor and that is configured to charge the photoreceptor, and a charging roller cleaning member that is configured to constantly contact a surface of the charging roller with a pressure so as to remove the toner transferred onto the charging roller from the photoreceptor. A length portion of the charging roller cleaning member along an axial direction of the charging roller is set to be equal to or greater than a width portion of an effective development area in an axial direction of the photoreceptor and smaller than a charging contact width portion of the charging roller with the photoreceptor in the axial direction of the charging roller.
Ricoh Company, Ltd.
G G
G03G G03G
additional inventional
Akira Daisuke Masaharu
Sawada Saito Furuya