Development station for a reproduction apparatus

A magnetic brush development station for a reproduction apparatus, said magnetic brush development station comprises:

• a housing forming, at least in part, a reservoir for developer material;
• a development roller mounted within said housing for delivering developer material from said reservoir to a development zone adjacent to said magnetic brush development station;
• and
• a plurality of augers located in said housing for mixing developer material within said reservoir, and a drive for said plurality of augers, wherein said drive includes an assembly having a body extending through said development station housing, a plurality of bearings positioned in said body with a spacer between said plurality of bearings, an auger drive member, a rotatable shaft connected between said plurality of augers and said auger drive member and supported by said bearings, and a seal for said rotatable shaft, said seal having a lip formed of a material which is able to stretch sufficiently to maintain sealing contact with said rotatable shaft while said shaft is being rotated by said auger drive member.