Save with our compatible HP DeskJet 3920 ink cartridges and cut your printing costs in half. To ensure the best printing experience, we engineer our ink cartridges based on the specifications of your original HP cartridges. We test every one of our ink cartridges for HP DeskJet 3920 printers for performance and page quality, so you can be confident our products will deliver the same quality prints as an original HP cartridge for less. Our comprehensive testing and quality assurance process allow us to offer a full 1-Year warranty and 100% customer satisfaction guarantee on all products. As part of our commitment to our customers, we also offer lifetime customer support, thus providing you complete peace of mind.