WetGeek stalebrim Try checking and reinstalling broken packages Thanks -- that was the first thing I did. Result: nfs-utils was reported as broken, although my nfs shares all worked fine, and I reinstalled that. There was nothing to do with printiing, or CUPS.
stalebrim WetGeek Try sudo mv /etc/cups/cupsd.conf /etc/cups/cupsd.conf.backup sudo mv /etc/cups/cupsd.conf.default /etc/cups/cupsd.conf sudo systemctl start org.cups.cupsd.service
WetGeek stalebrim Thanks! That's exactly what was needed. I still have no idea why this should have happened to just one of the many computers that I updated, but it's now working fine, and I'll gladly settle for that.
brent stalebrim brilliant catch with the linked folders in wrong places and mv command instead of of hassling with ln. WetGeek I was going to say re-check the devices' ip addresses in settings but it's fixed! What a weight off.
WetGeek stalebrim /etc/cups/cupsd.conf.backup If anyone's curious ... The original .conf file contained just: PreserveJobFiles Yes
stalebrim WetGeek I think the config file got mangled somehow or just was incompatible with new CUPS version. We'll probably never know. Glad it got solved though.
brent stalebrim by linked it appeared to me his printer was looking for something in a folder that was not where it should have been. did I misread your solution?
stalebrim brent My solution just backs up the existing config just in case and then restores the default cups config. Then it tries to start cupsd
stalebrim WetGeek While I'm not an expert on CUPS, that sounds like a bork to me. My cupsd.conf definitely has a lot more stuff.