An electrophotographic printing machine of the type in which an
electrostatic latent image recorded on a charge retentive surface is
developed with toner particles to form a visible image thereof,
including: a housing having a supply of toner and developer therein; a
donor member for transporting toner from the housing to a development
zone; a first manifold, adjacent to the donor member, having an air
stream for removing toner emission; a second manifold, adjacent to the
donor member, having an air stream for removing toner emission; and a
cyclone separator system, connected to the first manifold and the second
manifold, for separating the toner from the air stream and returning
toner particles of a predefined size back into the housing.