Go to Device Manager > Ports (COM & LPT). Note the COM port number assigned to the adapter (e.g., COM5).
Critical: If you are installing via USB, do not connect the printer yet.
Windows will try to install a generic driver automatically, which can conflict with V7.11.
1. Download the driver
2. Run the installer
3. Choose installation type
4. Select interface during install (if asked)
5. Complete installation
6. Connect the printer
7. Set as default POS printer (optional)
8. Configure in your POS software
Version: 7.11
Type: Universal Windows Driver Package
Commonly Supports: Epson, Bixolon, Star Micronics, Citizen, and many generic POS printers (ESC/POS compatible)
Interface: USB, Serial (RS232), Ethernet, Parallel
Key improvements in V7.11 (vs older versions like 6.x):
Before running the installer, do these three things to save yourself a headache later: How To Install Pos Printer Driver V7.11