I understand you're looking for a free driver for the Olivetti PR2 Plus to work on Windows 11.
Installing the Olivetti PR2 Plus Driver on Windows 11 Olivetti Pr2 Plus Driver For Windows 11 -FREE-
Use Windows Update: Many basic functions are supported by pre-installed drivers. Go to Settings > Bluetooth & devices > Printers & scanners, then select Add device. If it isn't found, click "The printer that I want isn't listed" and choose I understand you're looking for a free driver
Step 4: Choose Local Printer or Add Manually Olivetti Pr2 Plus Driver For Windows 11 -FREE-
If you're unable to find the driver on the Olivetti website, you can try the following alternative sources: