TONER CARTRIDGE

PROBLEM TO BE SOLVED: To provide a toner cartridge that economic efficiency is improved by reducing quantities of residual toner remained in the toner bottle to reduce a running cost, and environmental destruction is reduced by reducing waste residual toner remaining quantity. SOLUTION: The toner bottle 1 is provided with a projecting 1b in a helical shape on the inner peripheral surface, and has a function that the toner contained inside is transported to the bottle opening part 1a direction. Then, a discharge fin 5 is disposed on the inner peripheral surface of the bottle opening part 1a, and the toner transported to the bottle opening part 1a by the rotation is discharged to the bottle cap 3 side by the discharge fin 5.