Samsung EasyPrinter Manager under macOS 11 Big Sur

I have used a Samsung ML2955ND laser with AirPrint on Big Sur and without any Samsung drivers, and with the printer powered, I can see the amount of toner left. The Samsung Easy Printer Manager software works on Big Sur, just as it continues to work on Sonoma 14.1.1 — but you have to allow it as the developer is not recognized.

Turn on and ensure that your Samsung Printer is active.

When you attempt to launch Easy Printer Manager, a dialog will appear that the developer is not recognized. Click Cancel, and then immediately visit System Preferences : Security & Privacy panel and you will see that you can allow Easy Printer Manager to be recognized and run. Immediately thereafter, you will also receive a similar dialog that DaemonManager also cannot be verified, and you click its Cancel button and allow it in Security and Preferences panel too.

If Easy Printer Manager is running, then quit it and then relaunch it. It should detect your printer and in the case of my Samsung laser, show this:

and without Easy Printer Manager running, and choosing the Printers entry and its Supply Levels, I get this for my Samsung laser configured for Apple's built-in AirPrint: