Only 1 black cartridge installed so far with no problems (have 2 black and 3 color). Easy to install, no problems, prints well. I didn't have to change anything on my printer and it seems to work just as well as the Brother cartridges I've bought before. I've printed a few black and white pages and seem to be able to print as many pages as possible using the Brother ink cartridge (I haven't used all of the black cartridge yet). The price was great as was the fast service. I will buy again in the future and save money.
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