I had the same exact issue.Take a look at this,it's what fixed it for me.
https://forums.linuxmint.com/viewtopic.php?t=310426
Backup /etc/cups/cupsd.conf:
sudo mv /etc/cups/cupsd.conf /etc/cups/cupsd.conf-orig
sudo cp /usr/share/cups/cupsd.conf.default /etc/cups/cupsd.conf
sudo systemctl start cups