Magnetic brush development apparatus wherein flow of developer material, distributed in balance across the length of the apparatus, is assured. The apparatus includes a sump containing a supply of developer material. A magnetic brush is spaced from the sump. A feed mechanism, located within the housing...http://www.google.fr/patents/US4956675?utm_source=gb-gplus-shareBrevet US4956675 - Ribbon blender for a development apparatus with self adjusting inner and outer ribbons
Ribbon blender for a development apparatus with self adjusting inner and ...