The HP LaserJet 3330 mfp uses one toner: the HP 15X (C7115X), a high yield black toner rated for about 3,500 pages. The compatible version here replaces that HP part number. The same toner also fits the LaserJet 3300, LaserJet 3300 mfp and LaserJet 3320 mfp. Same-day shipping on most orders.
