Having a printer Pro 915, I turned to this .... ordered in two batches ... all the colors cartridges work on about properly if used regularly (otherwise it dries or mouth) .. . but then the 4 black cartridges had in my possession, none worked, the ink flowing not even .. so I had after trying everything possible in the garbage !!!!!! ... Well worth avoiding .... purchase notice to moderator: it would be nice that returns me 4 cartridges that "work" or be reimbursed me ...!