After quite a bit (i.e. a lot) of searching, I finally found a post of a similar problem and that there is a default configuration file which should be installed in /usr/share/cups/cupsd.conf.default.
So… I ran as suggested:
Run copy command (cp) and copy the cups.conf file share folder etc folder.. Run the following commands in terminal
sudo cp /usr/share/cups/cupsd.conf.default /etc/cups/cupsd.conf
sudo service cups restart
Check it.. now it will works !