The present application is directed to cartridges for use with an image
forming device. The cartridge includes a body with an interior reservoir
sized to contain toner, and an outlet to move the toner to the image
forming device. A shutter is rotatably connected to the body and movable
between a closed orientation to prevent toner from passing from the
cartridge and into the image forming device, and an open orientation to
allow toner to pass. A biasing mechanism is operatively connected to the
shutter and the body of the cartridge. The biasing mechanism urges the
shutter towards one of the open and closed orientations.