Documentary, environmental friendliness, original accessoriesPTSThis award by the Stiftung (paper technology specialists; PTS) certifies that our ink cartridges for many application purposes (e.g. creation of notarial certificates) legally prescribed document authenticity.Lightfast for 100 yearsBrother ink cartridges are particularly well suited to printing documents which are to be archived for a longer period. If the Brother BP-71 printer paper â which is ideally tailored to the composition of the ink in the printer cartridge â is also used, we even guarantee a document will be lightfast for a period of 100 years.4 separate ink cartridgesAll Brother ink multifunction devices have separate ink cartridges for each color. It needs to be replaced that are actually the cartridge has been consumed. Thus, protect the environment and your wallet.Blue AngelBrother ink cartridges have achieved Blue Angel certification in accordance with RAL-TO 122 and can therefore be viewed as particularly environmentally friendly and gentle on resources.This text is machine translated.