Method formfeed

libraries/ParallelPrinter/ParallelPrinter.h:51–51

  void     printLineNumber(bool b) { _printLineNumber = b; };
  void     formfeed()              { write(FORMFEED); };
  void     linefeed()              { write(LINEFEED); };
  bool     isOutOfPaper()          { return digitalRead(_busyPin) == LOW; };
  bool     isBusy()                { return digitalRead(_oopPin) == HIGH; };