First, lets have a little look at the family tree of some Brother printers.
First there was the QL-500. A little direct thermal address label printer. It’s printing speed was fast but the guillotine cutter was hand operated; not to make it sound medieval, it wasn’t a crank that you turn multiple times to cut one label, no. It was a little slider that you push from left to right and it sprung back when you let go. The QL-500 was all about sticking to a budget.
The QL-550 & QL-560. Same at its predecessor but with an electric cutter. You could tell it to cut at after every label, at the end of a batch, or not at all leaving you to press the button to cut it when you’re ready. More or less the same printing speed as the QL-500.