Compatible with: LaserJet 1220, LaserJet 1200se, LaserJet 1200n, LaserJet 1200, LaserJet 1220se, LaserJet 3300, LaserJet 3310mfp and LaserJet 3320mfp Page Yield*: 3,500 Pack of 4 For best results, store in a cool, dry place. Use within 3 years of purchase for optimal performance. Color: HY Black. *at 5% coverage (ISO/IEC standard) Professionally manufactured by SPEEDYINKS. HP is a registered trademark of HP Inc. and is not affiliated with and does not endorse SPEEDYINKS. All SPEEDYINKS compatible replacement cartridges are quality tested to ensure long-lasting use and bold, vivid print on every page. Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.