Recommend the correct for two-color printing. Official HP® Drivers and Software Download | HP® Support
: For detailed hardware setup, you can download the HP A799 User Guide or the Programmer's Guide. hp a799 thermal printer driver download link
While direct links expire, the most recent known from HP’s CDN was: https://ftp.hp.com/pub/softlib/software13/printers/A799/HP_A799_Driver_v6.2.0_x64.exe Recommend the correct for two-color printing
: If you are using specialized retail software, you may need the OPOS or JPOS drivers hp a799 thermal printer driver download link
The HP A799 supports various versions of Windows (including Windows 7, 8, 10, and some Server editions). Ensure you download the 32-bit or 64-bit version that matches your system. 2. Connect the Hardware Plug the power adapter into a grounded outlet.