Why can't I print to my networked thermal printer via direct IP?

NRGship supports direct communication to networked Eltron and Zebra printers using a fixed IP number. In your printer settings you can enter the IP# along with a username and password to connect with the device. Printing is accomplished using direct communications over port 21 (FTP) and your print server may need to be configured to allow access via this port in the print server configuration screens. Download the Zebra Print Server Configuration document for further information.