Electrostatic cleaning of scavengeless development electrode wires with D.C. bias.

摘要

An apparatus in which contaminants are removed from an electrode wire (42) positioned between a donor roller (40) and a photoconductive surface (12) during development of an electrostatic latent image on the surface. A magnetic roller (46) is adapted to transport developer material to the donor roller. The electrode wire is electrostatically biased (50,89,90) with respect to the donor roller to remove contaminants therefrom. The electrostatic wire bias polarity corresponds with the contaminant charge polarity to repel the contaminants from the wire.