If you are printing from an iPad you will want to change the settings so the label prints out correctly.
First, you will want to ensure you have the correct size selected in the Printer Setup page.
Click the Settings tab.
Under User Settings select Printer Setup.
Select the size of your label from the dropdown, and click Save Changes.
Next, you will want to change the way the popup label appears.
Click the Settings tab.
Under Admin Settings select Other Settings.
Check Use legacy label pop-up even in Chrome and Safari and click Save Changes at the bottom.