and in association with arm 32 forms aperture 44 the last baffle 46 which is inward from baffle 34 comprises two arms 48 and 50 which are essentially parallel with member 38 and arm 40 of baffle 34 baffles 34 and 46 form apertures 52 and 54 the baffles serve to control the flow of toner as the cartridge body 12 oscillates back and forth about its longitudinal axis note that the baffles are designed so the baffle system is self cleaning and that the system dispenses only in response to oscillatory motion continuous rotation in either direction does not dispense toner while there exist different methods of fabricating these baffles a plastic molded part is probably the easiest the baffles can if so desired extend the full length of the cartridge with the openings or slots in the cartridge body small and frequent or rather large and fewer in number in either case both the internal baffles 20 and the openings 26 in the cartridge body would essentially be the full width of the developer sump note further that careful distribution of the developer can compensate to a certain extent for uneven toner usage due to the way the copy machine is used center replenishment heavier due to.