Not literally, I hope!
Try the simplest print test first, to see if the problem is with the printer or the SAP printing setup.
Send a simple ZPL label description to the label printer:
^XA
^LH30,30
^FO20,10^AD^FDHello World!^FS
^FO20,60^B3^FDHello World^FS
^XZ
I've never worked with a RW 420 before, but the online specs say it should have ethernet & RS-232 connectors, so you have a couple of options:
Print a label from ABAP by sending each line as a WRITE statement through an SAP print queue with device type ASCIIPRI.
Print printing a test file with these lines through a windows print queue to the RW 420 printer.
You can also plug the printer into your PC's COM port and direct a text file with these lines to the COM port from the command line using MODE and TYPE commands. That should work.
This will tell you if the printer is working. Once you've proved this you can work backward to making it print something useful. My group didn't like the Bar-One learning curve and ended up using the ABAP WRITE approach for label graphics and layout. Works perfectly.
Good luck.
