Ok, some background:
We’ve got a very basic wifi-enabled HP Laserjet (monochrome, no screen – really basic), and an Epson Ecotank color multifunction printer/scanner/fax/copier, etc.
Both machines have reliability issues with being available over the network, and the Wifi AP is in the same room as them, and the Epson reports high signal strength. I haven’t gotten the HP working in Linux yet, but the Epson works for about a day, and has to be rebooted and have its cups profile deleted about every day to work, at best. It used to be more reliable. The ecotank is great because the ink is cheaper than even cheap laser toner refills, but the print quality is meh, the screen is small, the sheet feeder is crap, and everything about the machine is just mediocre.
I’m going to go pick up a Raspberry Pi Zero W to serve as a CUPS server for the Epson, to see if I can make it more reliable, but it’s a last-ditch effort.
Also, scanning on the Epson is a pain, and the only way I was able to make it work is with a proprietary app called VueScan, which I paid for. I’d prefer to avoid proprietary software, when possible.
So, I’m hoping to find this grail device that’s a reliable printer/scanner, wherein both functions work flawlessly under linux with FLOSS drivers/software.
Another problem I’m having is that while I can find a lot of good information about Linux-compatible printers, and some decent information about linux-compatible scanners, very little of that info indicates how well the wireless connectivity works, if at all, and I haven’t been able to find anything about how well multifunction devices work, as both printer and scanner.