Three ways:
:plot *.ps
after the file is saved in .ps, exit magic and use:
lp *.ps
command for printing.
Click right button of mouse on a free space of your workspace, choose application-> snapshot. Choose "Region" for Snap type, 2 sec for Snap Delay. You will get an image. Print it or save it in JPEG/TIFF/Postscript or any other format.
pplot program is in /user3/ee355/pplot/bin. Refer to ISI's website to get its usage.