Many POS applications (Square, Toast, Loyverse, etc.) require OPOS or ESC/POS support.
: Select this if your printer uses wider 80mm paper (common for restaurant checks and detailed retail receipts).
This happens when the printer series or communication baud rate is misconfigured. Re-run the V7.11 installer and ensure you selected the correct printer size (POS-58 vs. POS-80).
During the installation wizard, you will be asked to configure your printer type and port: How To Install Pos Printer Driver V7.11
Complete Step-by-Step Guide: How to Install POS Printer Driver V7.11
Click on (under Hardware and Sound).
: This is the most important step. Choose USB if it's plugged directly into your PC, or Network/LAN if it's connected via a router. Step 4: Configure the Port Many POS applications (Square, Toast, Loyverse, etc
Select this if your printer uses 58mm (2-inch) wide paper rolls.
Select your current Windows version (e.g., Windows 10/11).
To verify the connection immediately, click the button. Your thermal printer should instantly feed a short receipt containing text, barcodes, and technical parameters, confirming it is ready for use. Post-Installation Configuration Re-run the V7
Follow this guide to get your POS printer set up and running smoothly. Prerequisites Before beginning, ensure you have:
Click on (or Printers & scanners in modern Windows settings) Nexchar . Click on Add a printer at the top of the window.