Magnetic transfer surface for controlling toner thickness

An electrophoretic printer for printing an image upon a recipient sheet comprising:

• a reservoir of magnetically susceptible toner;
• magnetic brush means, having an outer surface and an inner surface of repetitive and equally spaced north and south magnetic poles, associated with said reservoir for attracting the magnetically susceptible toner;
• magnetic transport surface means having an aperiodic magnetic reversal pattern thereon, said magnetic reversal pattern having a pitch selected to provide a desired thickness of magnetically susceptible toner received by the magnetic surface transport means, aligned and cooperating with said magnetic brush means;
• and
• a print head situated above said magnetic transport surface to receive simultaneously the recipient sheet and the layer of magnetically susceptible toner.