TN750 High Yield Toner (yields approx. 8, 000 pages in accordance with ISO IEC 19752 (Letter A4)) TN780 Super High Yield Toner (yields approx. 12, 000 pages in accordance with ISO IEC 19752 (Letter A4)) DR720 Drum Unit (yields approx. 30, 000 pages Compatible Black Laser Toner CartrHewlett Packard (HP) CE278A - (78A) for the P1606dn