If you are comfortable working in UNIX, you may print your file by
typing lpr plotoutfile.ps into a shell window.
If you prefer to remain in Maple, then to print the contents of the file type
system(`lpr plotoutfile.ps`);
in Maple window at the > prompt. Notice that these
quotes are the ``backwards apostrophe''. This tells the Unix system to
print your file called plotoutfile.ps.