This genuine brother btd60bk black ink bottle has been specially developed to ensure quality documents every time you print. with a super high yield of 6500 pages, you can put an end to regular ink replenishment, just fill up the ink tank and enjoy long-lasting quality prints. you’ll also save money by avoiding re-prints and dead on arrival supplies the brother btd60bk ink bottle allows you print up to 6500 pages. this super high yield means fewer ink replacements are required, therefore providing super-low costs per page approx. 6500 pages in accordance with brother original methodology using test patterns iso/iec 24712 compatible to brother printers hl- t4000dw dcp-t220, dcp-t420w, dcp-t520w, dcp-t820dw, mfc-t920dw, dcp-t310, dcp-t510w, dcp-t710w & mfc-t910dw, mfc- t4500dw