Our compatible HP DeskJet 6840 ink cartridges are designed for user-friendly installation and deliver high-quality results with every page. These affordable ink cartridges will produce sharp printouts that easily match their name-brand counterpart. All of our ink cartridges for HP DeskJet 6840 printers are tested to ensure our customer receives a top-performing product with every order. We offer a comprehensive 1-Year warranty and 100% satisfaction guarantee on all products. In the unlikely event that you experience any product defect, we will replace the cartridge or provide you a refund.
