I have long hesitate to buy this pack my printer Brother DCP-J515W dating from October 2011 so still under warranty, I still bought this pack following the numerous positive reviews of the pack, what was my surprise by opening the box ink a profusion when a single black cartridge costs the price of that pack, it has for a while and I did not hesitate even to use color. My first test was black what I was missing, the cartridge was recognized immediately and no difference to that original copy after copy number of no concern, so I was even more reassured it the partner who seems to me you it also provides businesses supplies a bill me later sent from them, within 2 months if no problem I'll take a second and have the stock, especially at this price.