My Samsung ML-2010 USB printer was working well until I tried to share it with a Windows box.
After giving up on being able to share it, I reset all the options I had changed back to their defaults.
However, I can't print anymore.
Going into printers in control centre as ordinary user tells me that the print system currently being used is localhost:631.
However, when I change to Administrator and put in the password, it then tells me that the print system being used is: /var/run/cup/cups.sock
Then an error message appears:
Unable to retrieve the printer list. Error message received from manager:
Connection to CUPS server failed. Check that the CUPS server is correctly installed and running.
Error: /var/run/cups/cups/sock: read failed (14).
Please can someone help me fix this?