Abstract: An apparatus in which a latent image recorded on an image receiving member is developed with developer material. A conductive developer roller transports the developer material into a development zone for depositing developer material onto the latent image recorded on the image receiving member. The developer material is attracted from the developer roller to an insulating belt in a pre-development zone. The insulating belt inductively charges the developer material which is subsequently transferred back to the developer roller. The inductively charged developer material is then advanced to the development zone for developing the latent image recorded on the image receiving member.

Abstract: An apparatus in which a latent image recorded on an image receiving member is developed. A developer roller transports the marking particles into the development zone. The developer roller has the exterior surface thereof roughened forming a multiplicity of peaks extending outwardly therefrom with a coating of polymeric material filling the space between adjacent peaks. A blade is positioned to have the free end thereof contacting the peaks on the developer roller. The blade has a plurality of apertures therein through which the marking particles pass. In this way, the thickness of the layer of marking particles on the developer roller is controlled.