(If it's new uncover the plastic from the cutting thing (and maybe do other setup stuff).

Place vinyl on plastic cutting grid sheet. Put it against the entry and click the arrow so it feeds in a bit.

(You can open the tray below if you want). (It can cut with the top cover open or closed). It should now cut.

Ootb it cut a little too deep, making marks in the plastic grid cutting sheet (not all the way through it).