The most reliable source for the driver is the official XPrinter website.
Software like Seagull Bartender often includes native XPrinter drivers. If you are using professional labeling software, install the driver through the software’s printer wizard. xprinter xp-k200l driver
XPrinter releases driver updates approximately twice a year. You do not need to update unless you have problems. The most reliable source for the driver is
How to check your current driver version: XPrinter releases driver updates approximately twice a year
Updating:
Warning: Do not use Windows "Update Driver" automatically. It often installs a generic "Microsoft Class Driver" that breaks label size detection.
Most users fail because they connect the USB cable before installing the software. Keep the printer powered OFF and disconnected.