If your printer is releasing an extra blank label, printing incorrectly or over multiple labels, you will need to run a media calibration. Below are the steps:
1. Select the START menu, now open Devices & Printers. You can search this on the start menu.
2. Find your printer and right click to select Printing Preferences.
3. Click on "Tools" and click on "Send". This will issue a few blank labels while calibrating the printer. These can be rolled back if you wanted to use them again.