So, if I use pdftops-renderer=pdftops or pdftops-renderer=pdftocairo nothing happens on the printer at all. If I use pdftops-renderer=gs the printer prints the job with a non-standard paper size. If I use pdftops-renderer=mupdf it fails, even if I have mupdf or mupdf-tools installed, because apparently mupdftoraster isn't in the mupdf package (and I'm not sure what package it's in).
So, if I use pdftops- renderer= pdftops or pdftops- renderer= pdftocairo nothing happens on the printer at all. If I use pdftops-renderer=gs the printer prints the job with a non-standard paper size. If I use pdftops- renderer= mupdf it fails, even if I have mupdf or mupdf-tools installed, because apparently mupdftoraster isn't in the mupdf package (and I'm not sure what package it's in).