Brother LC426BK - Black - original - ink cartridge - for Brother MFC-J4335DWXL, MFC-J4340DW. Brother genuine ink cartridges are specifically formulated to limit the risk of smudges and smears. Brother uses the advanced color management technology to ensure the ink cartridges produce the exact pantone colors that you need and don't fade over time. Ensuring your business' logos appear the same print after print.