Abstract: An apparatus for developing in a development zone a latent image recorded on a surface, including a housing defining a chamber storing at least a supply of toner therein; a donor member disposed of at least partially in the chamber of the housing and spaced from the surface, the donor member being adapted to rotate about a longitudinal axis to transport toner to the development zone in a region opposed from the surface; and a wire assembly module mounted the development zone and extending in a direction transverse to the longitudinal axis, the wire assembly module including a wire and a drive system for translating portions of the wire in the development zone, and power supply for electrically biasing the wire to detach toner from the donor member so as to form a toner powder cloud in the development zone with detached toner from the toner cloud developing the latent image.