The steps in my earlier posting Restore Deleted Printers do NOT rely on any time machine backups. The cups system keeps a copy of your previous list of printers in the printers.conf.O file in /etc/cups folder. So I would think you have nothing to loose by trying the steps in earlier posting (copied here again):
Utilities -> Terminal. In the terminal paste in, one at a time, each of the one-line commands in bold below.
Stop the CUPS daemon with the following command:
sudo launchctl stop org.cups.cupsd
NOTE: Just type your password blindly when asked (no * echo), and hit enter key. You must logged into account with admin privs.
Assuming printers.conf.O is bigger (1st line), ovewrite the empty printers.conf with it (2nd line):
ls -l /etc/cups/printers.conf.O /etc/cups/printers.conf
sudo cp -p /etc/cups/printers.conf.O /etc/cups/printers.conf
Optionally (I did not need to do this myself) restore cupsd.conf from the O (older) one:
sudo cp -p /etc/cups/cupsd.conf.O /etc/cups/cupsd.conf
Restart the stopped CUPS daemon with the following command:
sudo launchctl start org.cups.cupsd
That's all folks. Should work with almost any mac-os-x version 10.10, 10.9, 10.8, 10.7, 10.6, even 10.5, 10.4...