Original Brother toner is formulated to meet high quality resolution grey scale and block colour in line with Brothers high design specification.N/ABut don't be tempted to cut corners by using cheap consumables as this can mean poor results and in extreme cases could invalidate the manufacturer's warranty. The manufacturer's original consumables will always be the best choice as they have been designed to deliver the best performance from our machines.N/AToner particle size shape and colour 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.