I’ve had some pretty great experience with my Brother multifunction printer / scanner on my Ubuntu server, but never played with Arch.

Best part about Brother’s scanner driver is that it literally just runs a shell script you can modify. I have it set up such that I can scan to PDF from the printer & it will programmatically drop it into my samba share, despite the fact that my printer is not expensive enough to come with the “scan to nas” feature in firmware.