automatic toner monitoring systemNotifies customers when the toner is low or out. giving them worry-free control over printing.security labelAll 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.original qualityOriginal supplies enable consistent printing without reliability problems. Samsung original supplies guarantee high quality pages without quality defects.easy toner changeSamsung 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.Compatible Printers: Samsung CLP-620 ND. Samsung CLP-670 ND. Samsung CLP-670. Samsung CLX-6220 FX. Samsung CLX-6250 FX. Samsung CLP-670 N. Samsung CLP-670 Series. Samsung CLP-620. Samsung CLP-620 Series
