[GNC] no printer to select in print dialog

[Chris Roy-Smith]

Hi

I was running ver 2.6, Printing offered a list of printers that the 
computer "knew about". This was updated to 3.2 (via Linux mint updates). 
Now the only printing options offered in the print dialogue is "file" 
and "lpr". Print to file works as expected, but printing to lpr does 
nothing. Printing to file generates a PDF file which I can print, but 
this is a bit clumsy, having to jump to a PDF capable program to print, 
and then switch back to GnuCash again. Is there some other way that the 
user is expected to use? Is this a bug? It occurs in both Linux Mint 19, 
and Ubuntu 18.04.

Any info as to how I'm supposed to print gratefully received.

Regards,

Chris Roy-Smith