If you connected the USB before installing the software, Windows may have installed a generic, non-functional driver. Uninstall the printer, restart, and reinstall using the HP installer. Support and Final Tips
If you have lost the original CD, you can install the printer using the downloaded setup file. hp 1120 driver
HP has designated the DeskJet 1120 series as "End of Support." This implies: If you connected the USB before installing the