I recently got a MPS-803 from my VIC-20. Here is a short video of it printing an ASCII art image of the Doom Guy. I entered this line by line in basic.

So this is 2 firsts. The first BASIC program I've created from scratch and the first actual thing this printer has generated since I've had it.

I've got an 80-column version of this as well i will do next since I've confirmed it can work. I suspect the 80-column version will look better...i hope.