Small businesses, micro offices and departments in larger businesses who want professional quality colour laser documents. HP 311 LaserJet Printing Supplies work with the printer to make high-quality colour printing easy, cost-effective and reliable. An improved electro-photographic process achieves a broad range of vibrant colours and sharp text on a variety of papers.Compatible Printers: HP Color LaserJet 3700 N, HP Color LaserJet 3700 DN, HP Color LaserJet 3700, HP Color LaserJet 3700 DTN, HP Color LaserJet 3700 Series