HP OfficeJet Pro9720 Ink Cartridges

The HP OfficeJet Pro 9720 uses high yield compatible ink that replaces HP 936 (4S6V6LN) in black, rated at about 2,500 pages. The cyan 4S6V3LN, magenta 4S6V4LN and yellow 4S6V5LN each last about 1,650 pages. A 4-pack of high yield ink is also available. The same ink fits the OfficeJet Pro 9110b, OfficeJet Pro 9117b and OfficeJet Pro 9122e. Same-day shipping on most orders.