L-ink brand compatible ink and toner cartridges have long been synonymous with quality and efficiency in the printing consumables industry. All of our L-ink brand cartridges go through rigorous quality control and testing, and are certified ISO14001 and ISO9001Our L-ink brand compatible black inkjet cartridge offers a more economical option to the BROTHER LC3019BK original cartridge, without sacrificing quality and performance. You can safely rely on L-ink brand cartridges to deliver true-to-life photos, rich laser quality text, and sharp images without the risk of bleeding or smudging. Compatible Printer list for L-ink LC3019BK ink cartridge:• MFC-J6530DW• MFC-J5330DW• MFC-J6730DW• MFC-J6930DW