Document Type and Number:
Japanese Patent JPS5527890
Kind Code:
Y2
Abstract:
An electrostatographic system in which dry imaging material (toner) is cleaned from a photoreceptor surface by a soft cleaning member, and the cleaning member in turn is electrostatically cleaned by a secondary or pickoff roller having a multiplicity of closely adjacent and differently charged conductors, which attract toner particles of either polarity and also uncharged toner. This electrical charge pattern may be provided by differentially biasing a bifilar helical conductive winding on an insulative surface of the secondary roller.
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Application Number:
JP12782574U
Publication Date:
July 03, 1980
Filing Date:
October 22, 1974
Export Citation:
International Classes:
G03G21/00; G03G21/10; (IPC1-7): G03G21/00