I installed this cartridge tonight and I noticed that the ink roller had a diameter at least twice smaller than the roller eliminated. I am tempted to say that it has a low capacity and will not cover 1500 Brother feuilles.L'authentique ad pages in 2000, but he did more. Perhaps is it more interesting to buy the original product. The indisputable advantage of it is that it is cheap and quickly troubleshoots (Thanks to Amazon rapidissime Service).