lpq: Error - no default destination available, after using admintool
 

What it comes down to, is how do I set the default destination'. I can print a test page from the admin tool, but not use the printer in any norma way.

You can set a default printer via the lpoptions command or specify the printer using the -P option.

To print a file as an example from the command line.
lpr -P printer file_name