prt scrn with/out/justbox-p/P/B save scrn-V
``p'' to print the graphics screen to a printer (see #A4. for printer limitations) including the rule window #26.4, but not the prompt window (#26.5) above .
``P'' to print the graphics screen to a printer (see #A4. for printer limitations) excluding the rule window #26.4 and the prompt window (#26.5) above.
``B'' to print just the rule window, #26.4.
``V'' ``s'' save the graphics screen to a ``*.nat'' file (see ``filing'' #28).