Burns, Doane, Swecker & Mathis
Developing device brought into contact with an electrostatic latent image support member
 A developing device comprising: a drive roller which is driven so as to be rotated; a developing sleeve which is formed by a thin film and has a peripheral length slightly larger than that of the drive roller so as to be fitted around the drive roller; a press member which presses the developing sleeve against the drive roller at one side of the drive roller so as to form a sag portion of the developing sleeve such that the sag portion is brought into contact with an electrostatic latent image support member; and an electric field forming member for forming alternating electric field such that an attractive force capable of bringing the developing sleeve and the electrostatic latent image support member into contact with each other is applied between the developing sleeve and the electrostatic latent image support member. 
Minolta Camera Kabushiki Kaisha
G
G03G
inventional
Toshimitsu Satoshi Masami Hideaki Toshiya Hideo Hiroshi
Fujiwara Deishi Matsuura Hirahara Natsuhara Yamaki Mizuno