Abstract: An apparatus for controlling a flow of developer material in a development station. Gating means for regulating the flow of developer material in a development station are mounted for movement between an open position, allowing a flow of developer material and a closed position inhibiting the flow. An abutment, movable with the gating means, has a pair of opposed surfaces and contacts a limiting surface when the gating means is in the open position. A crank is drivingly connected to a drive means. The crank has a portion which engages one of the opposed surfaces when the drive mechanism moves the crank in one direction. This causes the gating means to move toward the open position. The crank engages the other opposed surface when the drive means moves the crank in an opposite direction. This causes the gating device to move to the closed position.

Abstract: A method and apparatus for supporting an object from a channel. The apparatus is comprised of a channel clip, formed of a flexible material, whose length is much greater than its width and which is adapted to be applied to a channel. The channel clip includes a receiving loop and a pair of arms extending from the respective sides of the loop. The arms extend in the same direction and are spaced from each other. A retaining loop extends from each arm. The retaining loops lie in essentially parallel planes, and the outer perimeter of the retaining loops conforms generally in shape to a surface which defines the channel. The channel clip is used to support an object from a channel by first inserting the object into the receiving loop. The receiving loops are then pressed together and aligned such that planes within which the receiving loops lie are parallel with the channel. The retaining loops are inserted into the channel after which the channel clip is rotated about 90.degree.

Abstract: A developer material mixing blender includes a shaft and self-locking segments. Each segment has a hollow hub, an inner ribbon for moving material towards one end, an outer ribbon for moving material in a second stream towards another and opposite end, and an interstream cross-mixing rib for moving material laterally from one to the other of the first and second streams in order to insure good mixing.