Images forming apparatus and developer for developing electrosta

Details Images forming apparatus and developer for developing electrosta Images forming apparatus and developer for developing electrosta

1995-04-18

1998-09-01

Ramirez, Nestor R.

Electrophotography

Image formation

Development

399267, 430110, G03G 1506

Patent

active

058024280

ABSTRACT:
An image forming apparatus includes a member to be charged for carrying an electrostatic latent image; a contact charging means for contact charging the member to be charged and a developing means for developing the latent image. The developing means includes a developer having a magnetic toner and fine powder treated with a silicone oil or varnish-treating agent, wherein the magnetic toner particles include a binder resin and contain from 10-70 wt. % of magnetic fine powder. An image forming method includes the steps of contact charging, latent image forming and developing with a developer having the binder resin, 10 to 70 wt. % magnetic fine powder and fine powder treated with a silicone oil or varnish-treating agent.

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