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IP.com Disclosure Number: IPCOM000024231D
Original Publication Date: 1980-Feb-29
Included in the Prior Art Database: 2004-Apr-02

Publishing Venue

Xerox Disclosure Journal


The spatial frequency response of a magnetic brush development subsystem may be modified by the use of ferromagnetic materials as the substrate of the photo-receptor or other dielectric layer, which bears the latent electrostatic image which is to be developed. Use of the ferromagnetic substrate flattens the spatial frequency response. Thin ferromagnetic substrates (less than the equivalent of 1/16 inch of mild steel) are preferred when used in intimate contact with the photoconductive material. Alternatively, a thick ferromagnetic material or a permanent magnet can be spaced from the back of the photoreceptor.