An electrostatic copying machine includes a reservoir for liquid developer made up of toner particles in a dispersant. A photoconductive drum, adapted after receiving a latent electrostatic image thereon to pass through the liquid developer in the reservoir and to have an electrostatic image developed...http://www.google.de/patents/US4259006?utm_source=gb-gplus-sharePatent US4259006 - Air jet means for removing liquid from a conductive surface
