Transfer of magnetic toner particles with a directed magnetic field

Abstract

magnetic toner images are transferred from a latent magnetic image on a magnetic recording surface to hard copy medium, which may be paper, by (1) disposing the hard copy medium in contact with a toner image; and (2) applying a transfer magnetic field in the region of contact. The transfer magnetic field is directed tangential to the recording surface and has a gradient directed from the recording surface to the copy medium. The intensity of the magnetic transfer field may be greater or less than the intensity which is necessary to erase the latent magnetic image in the magnetic recording surface.

Description