AUTOMATIC[=initial-data-type]

   Specifies the automatic detection of the file's data type. The
   initial-data-type specifies the data type at the start of the
   file.  This is useful if the file contains PostScript data after
   ANSI, PCL, or Proprinter data.  AUTOMATIC is the default method
   for printing files.  The default initial-data-type is ANSI.