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.