You will be amazed with Lexmark's Extra Long Life Cartridges. The Extra Long Life Cartridge offers you an impressive performance that simply can't be ignored.¤¤This cartridge is designed for HP LaserJet 4, 4M, 4+, 4M+, 5, 5M, 5N, Canon EPE, LBP 8 IV/8 Mark IV/EX/P270, LBP 800/860/1260, Apple LaserWriter Pro 600/630, LaserWriter 16/600 PS, Brother HL1260/1660/DX/E/NE/NTR/PS, DECLaser 5100.