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 HP 901BK 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 901BK ink cartridge:• OfficeJet 4500• G510• J4524• J4525• J4535• J4540• J4550• J4580• J4585• J4624• J4630• J4660• J4680