Check the following:
 

• Check that the power of the printer you want to use is on.
  Once you turn on the power, the printer name you want to select may appear.


• Check that your P-touch Design&Print version is 2.x.x or higher (except for P-touch Design&Print 2).
  If your version is 1.x.x, update to the latest. The printer name you want to select may appear.
  To check your version, tap [Settings] - [Other] - [Version] in the app.