>I tried the following:

>strtofile(chr(27)+'%-12345X@PJL RDYMSG DISPLAY="MESSAGE HERE"',"hpDisplay.txt")
>!copy /b hpDisplay.txt \\server\printer
>

>and also tried with doing a net use lpt1 \\server\printer and then
>

>!copy /b hpDisplay.txt lpt1
>

>Neither one got the display on the printer to change.
>Anyone know what I am doing wrong?

After finding the manual... This worked... and My printer display changed:

??? chr(27)+"E"+chr(27)+'%-12345X@PJL RDYMSG DISPLAY = "HiDi Ho" '+CHR(10)+chr(27)+'%-12345X'
SET PRINTER TO