Tried testing the printing function and despite it saying ‘printing done’ nothing happened. If I unplug the printer, it will say ‘printer not found’. The ‘printing done’ message shows up rather fast as well.
https://github.com/bbbbbr/gameboy_qr_paint/pull/1
made some fixes to get it working! (I did not look into the initial issue of make a small, thick circle) this fix is only for using the printer!