The following settings in the applications can prevent the printer from stopping while printing.
(If you want to reduce margin to the minimum, perform the steps above without doing the settings below.)
 

For Brother iPrint&Label:

Tap [Print] and then turn [Chain Printing] in the Cut Option OFF.
 

For P-touch Editor / P-touch Editor Lite:

Click [Print] and then uncheck [Chain Printing] in the Option.