Not a moment too soon, our new printer has been set up! We opted to buy a Brother one, because their Mac/Linux support is reputedly good (and given the quick start guide outright says the correct driver for Macs is the open-source CUPS, I have high hopes). Now to cart the old, non-functional printer off to e-waste recycling ♻️

a computer desk, with a printer to the left, desktop computer to the right, and a stack of papers and notebooks in between