I have coded ^BQ,2,10 for QR Barcode but the size is not big enough. Requirement is the QR Barcode should be 3.5x3.5 inches. ...

I have coded ^BQ,2,10 for QR Barcode but the size is not big enough. Requirement is the QR Barcode should be 3.5x3.5 inches. Could anyone please help?