I’ve used pen plotters that feed off a roll like that. One benefit is that you don’t have restrictions on how long your print is — you can make very large continuous images. That can be desirable for certain applications.

The pen plotter I used had a paper cutter that sliced the paper at the end of a print. I don’t know if this thing slices at the end of each page or what.

kagis

Ah. Apparently it also can handle pre-cut sheets, and it additionally has a cutter for the roll:

https://www.hackster.io/news/the-open-printer-is-a-raspberry-pi-zero-w-powered-fully-open-highly-flexible-inkjet-printer-30948a1787cc

The printer’s paper, meanwhile, can be loaded as pre-cut sheets in letter, tabloid, A4, and A3 sizes, or as a continuous roll — with a built-in cutter knife able to trim the latter to the desired size following the completion of each page.

I dunno if they have a paper feeder, or if you have to insert pre-cut sheets one at a time, which I imagine would be obnoxious.