Amazon.com: (1-Pack, Super High Yield) TG Imaging Compatible Toner Cartridge Replacement for HP 27X C4127X use in HP Laser Jet 4000 4000N 4000T 4050 4050N LBP-1760 Printer (10,000 Pages) : Office Products
HP C4127X 27X Toner Cartridge Black LaserJet 4000 4000n 4000se 4000t 4000tn 4050 USB-Mac 4050n 4050se 4050t - Sun Data Supply
Amazon.com: Toner Cartridge C4127X For HP LaserJet 4050N (Black) - Remanufactured : Office Products
HP C4127A (HP 27A) Black Compatible Laser Toner affordable economical — Inkpal