Abstract: System includes a server comprising a receptacle exchange engine, a receptacle, a shelf comprising a plurality of storage locations, and a frame positioned adjacent the shelf. The frame includes a lift traveling about a vertical rail. The vertical rail translating horizontally about two guide tracks arranged parallel to one another. The lift is configured for transferring the receptacle to a storage location of the shelf. System is configured to: determine that the receptacle containing one or more sorted articles is ready to be transferred and direct the lift to transfer the receptacle from an article receiving position to one of: (a) a storage location of the shelf, and (b) a position about a receptacle transport device.

Abstract: Chamber bank for use in a sorting operation includes chambers for receiving a receptacle therein. Each chamber is defined by a floor, a left wall, a right wall, and a rear wall that together define a receiving space for a receptacle. At least one of the left and right wall is taller than the corresponding abutting side wall of the receptacle received therein. A system assigns a first number of articles occupying a first volume to the receptacle such that the first number of articles overfills the receptacle when all of the first number of articles are deposited thereinto.