Here is a sample that I threw together rather quickly to print data from a Do-more to a networked printer.
I have used the Zebra ZPL code quite a bit, and so I included a sample of ZPL.
I also included a short sample of sending data to a standard networked office printer. I did not have a networked printer available to test with, and so it is based solely on a short sample I dug up online, and it has NOT been tested.
If someone is able to make the sample work, then please post back with the changes that you made to allow it to work.
Have fun!