How long will it take to print out all labels?

Printing out all labels mode

6 Seconds For a Label

In the Printing out all labels mode, it takes around 6 seconds to print out a label. 

30 Minutes For Print Out a Roll of Label

If you want to print out a roll of labels in a non-stop mode, it takes about (300 labels x 6 seconds) 1800 seconds which is 30 minutes. 

Therefore, the time for printing out a roll of label non-stopping (Print all labels mode) which takes about 30 minutes.