Each LC426M is filled with sufficient Brother magenta ink to print an estimated 1,500 pages, offering you the cheapest Brother cartridge of this colour to get your MFC-J4540DW or MFC-J4340DW. You can use the LC426 magenta ink cartridge in with a select few inkjet printers, a full list of which can be found on this page. This original Brother LC426M is a standard capacity magenta cartridge from this new range of ink cartridges. Selecting a genuine Brother LC426M ensures that your printer can produce prints of the very highest quality, matching the manufacturer`s vision for this series. We are more than confident that you will love the results produced.