作者: Yukio Nishio , Kazunori Hirose
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摘要: A developing device using a one-component developer composed of colored fine synthetic resin toner particles, which comprises vessel for holding the developer, and roller rotatably provided within in such manner that portion is exposed therefrom resiliently pressed against surface an electrostatic latent image formation drum. The formed conductive open-cell foam rubber material, thereof thermally or chemically treated to prevent penetration particles structure roller, whereby softness can be maintained over long period. further blade member engaged with regulating thickness layer around roller.