Cool Toner Compatible Toner Cartridge Replacement for HP 42X Q5942X Q1338A Q5942 Toner Cartridge HP LaserJet 4200 4250 4250TN 4250N 4250DTN 4300 4350 4350N 4350TN 4350DTN Printer Ink (Black,1-Pack) HIGH YIELD - Cartridge Yield: 20,000 pages (Letter/A4) MODEL - Compatible Printer Model --- LaserJet 4200, 4200N, 4200TN, 4200DTN, 4200DTNS, 4200DTNSL, 4300, 4300N, 4300TN, 4300DTN, 4300DTNS, 4300DTNSL, 4250, 4250N, 4250TN, 4250DTN, 4250DTNSL, 4350, 4350N, 4350TN, 4350DTN, 4350DTNSL, 4345MFP Compatible for HP 42X Q5942X Toner Cartridge SERVICE - Phone Services for technical support SUPPORT - Advanced technology ensures stunning performance