With PEEK/FORMAT on AXP, a full, new, output screen is appended
   to the formatted output file whenever any one of the following
   conditions occurs:

     1.  A clear-screen sequence in found in the input file.
     2.  A selective-erase sequence in found in the input file.
     3.  The screen is cleared because the screen width is changed.
     4.  Enough lines are scrolled on the screen that some are about
         to be lost off of the top or bottom of the screen.

   The output-file format may be varied to take advantage of different
   printer formats. The default output format is plain text, but other
   formats are available through the /PRINTER_TYPE=keyword qualifier.

   The following PRINTER_TYPE keywords are currently defined for AXP:

       FILE        - For plain text into file (this is the default).
       VT100       - For paged output to a VTxxx type terminal.

   The output file will have form-feed characters inserted at the page
   breaks.