After installation, right-click the printer in "Devices and Printers" > > Print Test Page . On a thermal printer, the test page should show:
: The POS application cannot claim the printer because another process has a handle open. Fix : Go to C:\OPOS\Bin and run CheckHealth.exe (if included). Otherwise, reboot the terminal. The V8.11 driver has a known quirk where the print spooler holds a lock after a crash. POS Printer Driver V8.11.230513.exe
