Original Brother toner is formulated to meet high quality resolution, gray scale and block color, in line with Brother's high design specification.But don't be tempted to cut corners by using cheap consumables, as this can mean poor results. The manufacturer's original consumables will always be the best choice, as they have been designed to deliver the best performance from the machines.Toner particle size, shape and color pigmentation all have a direct impact on the sharpness of the printed image. Brother's toner is formulated to exacting standards to ensure you receive high quality print resolution and reliability.Only by using Original Brother consumables can you enjoy the ongoing improvements and technical changes that occur regularly throughout the life of your product.