| 摘要 |
<p>An apparatus for developing electro static latent images formed on a dielectric copying material, has a device for rolling toner material over the developer electrodes surface. A further device applies the copy material to the toner flow such that the copy material is held at a uniform distance from the developer electrode. A feed device is provided to feed fresh toner material onto the developer electrode surface and a system is provided by means of which spent toner material may be removed from the developer electrode surface, at a position upstream from the feed region.</p> |
