SAMSUNG ML-D3470B original toner offers high quality documents with its best equipment. It has wider grayscale to express sharpened images. Also, as a proven SAMSUNG technology it meets your needs.standard cartridges. SAMSUNG implements ISO standard.It is a trusted test method for determining the page yield of toner cartridges for mono laser printers.SAMSUNG has tested all current laserjet cartridges in accordance with the ISO/IEC 19752 standard, giving customers more confidence and reliability when basing purchase decisions on toner yields. greater choice for customers. Provides double printer yield options - Standard yield toner and high yield toner, giving users more choice.Standard yield cartridges ensure excellent print value for low volume users.High yield cartridges are the ideal choice for the high volume user. High yield cartridges ensure maximum printer production and minimum user intervention. automatic toner monitoring system. Notifies customers when the toner is low or out, giving them worry-free control over printing.security label. All SAMSUNG supplies carry a colour changing security label to prove they are original products.1. When the label is tilted, the colour changes from clear to cyan. 2. The embossed characters change colour between red gold and blue when viewed from different angles. 3. Verification of the embossed character is possible by feeling the texture. easy toner change. SAMSUNG printer cartridges are easy to change by following 3 steps. Customers can change toner conveniently without special know how.1. Open the front cabinet.2. Change cartridges.3. Close cabinet.