Toner Refill Store Compatible Brother LC207BK Super High Yield Replacement Black Ink Cartridge for the Brother: MFC-J4320DW, MFC-J4420DW, MFC-J4620DW. Page Yield: 1,200 pages at 5% page coverage per page. (1 Black) Comes with 1 Super High Yield Black Ink Cartridge Page Yield: 1,200 pages at 5% coverage per page. Works in the following Brother printers: MFC-J4320DW, MFC-J4420DW, MFC-J4620DW. Product Comes with a 1 year 100% Satisfaction Guarantee and all of our cartridges and drums are made at an ISO-9001 certified factory so you can expect premium quality. Toner Refill Store offeres free technical support for any questions you may have on our Products.