This award from the Paper Technology Foundation (PTS) certifies our ink cartridges for their legal document authenticity required for many applications (e.g., creating notarized documents). Brother ink cartridges are particularly well-suited for printing documents that need to be archived for an extended period. When used in conjunction with Brother BP-71 printing paper, which is optimally matched to the composition of the ink in the cartridge, we even guarantee lightfastness for up to 100 years. All Brother ink multifunction devices have separate ink cartridges for each color, so only the cartridge that has actually been used needs to be replaced. This helps to protect the environment and your wallet. Devices tested and certified according to RAL-UZ 171 demonstrate energy-efficient and low-emission operation when using Brother ink cartridges.