I have Zorin OS Lite 15.3. When I first installed the OS, my printer-scanner worked immediately after install. Now, months later, something happened and I cannot print. Under Printers, it says "Printing service not available. Start the service on this computer or connect to another server." I found some instructions online to restart the CUPS printing service, but it hasn't fixed the problem. (FYI, the scanner still works fine.)
Any tips on how to get the printing service working again?
It sounds like you have lost the configuration file. See below:
Ubuntu 18.04 LTS — Printing Service Not Available
Blockquote
. Config file is incorrectly located. Follow directions as per this link. Cups service stopped - UM 18.04 - Support & Help Requests - Ubuntu MATE Community
There is a default configuration file which should be installed in/usr/share/cups/cupsd.conf.defaultso I ran:
sudo cp /usr/share/cups/cupsd.conf.default /etc/cups/cupsd.conf
sudo service cups restart
Awesome, that worked perfectly! Thank you!
I am glad to hear that my advice has worked 
As I said somewhere in this forum, it is a great pleasure to return the favour 
Linux community has given me all those years.