Waste bottle with overflow chamber

A container for collecting waste developer in an electrostatographic printing machine employing a trickle type developing process and having a waste developer discharge tube with a discharge opening adjacent an outer end thereof for discharging waste developer. The container includes an outer wall enclosing an interior chamber, with a partition wall extending from an inner surface of the outer wall dividing the inner chamber into a collection chamber and an overflow chamber. An opening is formed in the outer wall into the overflow chamber. The opening is sized and shaped to receive the discharge tube therethrough. When received through the opening, the discharge tube extends through the overflow chamber, over an inner edge of the partition wall and into the collection chamber, with the discharge opening being located within the collection chamber. With this construction, the waste developer is discharged into the collection chamber.