@eriefisher, I got it working by doing the following:
- opened the firewall:
sudo ufw allow 8612/tcp
- enabled avahi:
systemctl enable avahi-daemon
- started avahi
systemctl start avahi-daemon
I’m not sure whether avahi is really needed as I could not stop it (without doing a reboot), but I’m just glad it’s working now. Thanks for all your help - this community rocks!
Reference material is:
- the SANE Supported Devices list, which listed sane-pixma as the backend for the TS5100 series, and gave the link to
- the man page for sane-pixma which has a section on firewalling