Charging Roller Kit - Charging roller unit, Cleaning blade Estimated Yields for 31/36ppm models - Black: 250K Images/Package, Color: 186K Images/Package Estimated Yields for 45ppm models - Black: 310K Images/Package, Color: 249K Images/Package Estimated Yields for 55/65ppm models - Black: 310K Images/Package, Color: 249K Images/Package