By the way, how were you able to determine that page break was a chr(12)?
Us old timers know the ASCII control set forwards and backwards.
CHR(12) is a standard character used in device control. Primarily printers, teletypes and old style character terminals. It is a "form feed" character, which in the days of continuous fan-fold paper meant "advance to the top of the next page"
For modern page printers (laser jet) is means "eject the current page" and for character terminals it means "clear the screen".
Control characters do other things too - carriage return, horizontal and vertical tabs, bell (or beep), and the good old "introduce a non-standard sequence" escape character.
For more information (though Lord knows why you'd want to): see the WIKI page: http://en.wikipedia.org/wiki/ASCII