A developer system, including: a developer housing having a sump
containing developer material including toner particles; a developer
member rotatably mounted in the housing for transferring toner particles
to a latent image on the photoreceptive member in a development zone; a
pickup auger, positioned in an auger channel, for transporting and
delivering developer material to the developer member, along a path
adjacent to the developer member, the pickup auger having a first end
portion and a second end portion, and the pickup auger includes a
plurality of blades extending along the length of thereof, the plurality
of blades being mounted on a core having a core size, the core size being
adapted and arranged in the auger channel to maintain a constant
developer material distance from the developer member along the length
the auger channel.