Original black toner ML-D1630A for Samsung ML-1630/SCX-4500. SAMSUNG ML-D1630A original toner offers high quality documents with its best equipment. It has wider grayscale to express sharpened images. 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 & blue when viewed from different angles. 3. Verification of the embossed character is possible by feeling the texture.