I have a new HP printer. I thought the older was expensive to keep inked up, so I went to Walgreen's (against our son's (the TI) statement about not changing ink that the printer came with. I did. First off, Walgreen's refills are smaller, black isn't too bad, color is awful. So when I got my new printer it has thenew individual colors - red, yellow and blue and then a larger black. Well, heck, it is just as expensive, but it works. And as #1 son says, Cartridges are made for the brand of printer you have. If you use a different ink that is put into the cartridge, it will not work as well and down the road a piece, it will probably ruin your printer. Guess what????? It did! So being that my computer and printer are both HP's, I am sticking with the HP ink. I learned the hard way, I don't trust what does not belong in the printer as far as ink is concerned.
Sorry, but forewarned is forearmed - Edie