A powder supplier is provided. The supplier including: a non-cylindrical housing that stores a powder; a rotating member that is arranged rotatably inside the housing; a sheet-shaped conveying member that is fixed to the rotating member and has a free end side that differs from a fixed portion thereof,...http://www.google.es/patents/US7848682?utm_source=gb-gplus-sharePatente US7848682 - Powder supplier and image forming device