TCT Premium Compatible Toner Cartridge Replacement for HP 27X C4127X Black High Yield works with HP LaserJet 4000 4000N 4000SE 4000T 4000TN 4050 4050N Printers (10,000 Pages) - 2 Pack - Walmart.com
2-Pack Toner HP27X C4127X Cartridge LaserJet 4000 4000n 4000se 4000t 4000tn 4050 4050n 4050se 4050t 4050tn - Sun Data Supply
Amazon.com: Elite Image 75054 Reman Toner Cartridge Replacement for Hp 27A (C4127a) Black : Office Products
HP 4050 Toner | LaserJet 4050 Toner Cartridges
Black High Yield Toner Cartridge Compatible with HP LaserJet 4050n (V2540)
Black High Yield Toner Cartridge Compatible with HP LaserJet 4050n (V2540)
HP C4127X (HP 27X) High Yield Toner Cartridge - Compatible