Abstract: A method for developing electrostatic latent images comprises a first step of supplying uniformly a developer containing developing particles onto an electrostatic latent image carrying surface and a second step of supplying liquid onto the latent image carrying surface to remove any excess developer from the surface while leaving on the surface only such developing particles that are able to be retained as a result of the relative attraction between the developing particles and the electrostatic latent image so as to visualize the latent image. Apparatus for carrying out the method comprises a developing particle applying means and a liquid supplying means. The developing particle applying means is disposed to effect a uniform adhesion of developing particles onto an electrostatic latent image carrying surface.

Abstract: An electrophotographic apparatus constructed with a photosensitive body, a primary charger to apply a substantially uniform primary charge to the photosensitive body, a secondary corona discharger to apply to the photoconductive body either an AC corona discharge or a corona discharge of an opposite polarity to that of the primary charge so as to form an electrostatic latent image on the photosensitive body, the secondary corona discharge application being effected substantially simultaneously with irradiation of an image to be reproduced, wherein the secondary corona discharger is provided with a device to control discharge conditions.