L-ink brand remanufactured 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 remanufactured black inkjet cartridge offers a more economical option to the HP 61BK 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 61BK ink cartridge:• DeskJet 1000• 1010• 1012• 1050• 1510• 2000• 2050• 2510• 2512• 2540• 3000-J310A• 3050• 3051• 3052• 3054• 3056• 3510• 3511• Envy e-All-in-One 4500• 4501• 4502• 4503• 4504• 4505• 5530• OfficeJet 2620• 4630• 8040• 8045• J4680C