My printer is a brand new Brother DCP-J315W which is great so far and no problems making. At first I was only original cartridges, and have the black replaced here with these. For me it is so out of this multi-pack, the first cartridge was perfect in my printer and printed perfectly. And after that no one more from around the pack. Some do not fit in, not quite a snap, so you can not print with it. Others are pushing somehow pure, but the printer does not recognize it and it just comes out blank paper again. ! In the whole package just a matching cartridge I find that very strange - if a was perfect, why not the rest? I'll throw it all away because now useless, and buy again the expensive original cartridge Brother. So if you Brother DCP-J315W have, caution in these cartridges - I read other negative reviews of this model here. I know that most reviews here turn out positive, but may be that having another device. Therefore, it would be useful if people would write this in their reviews, to what printer you use this cartridge. Apparently there are already major differences.