Int 21 Fn FFB4 - Topware Network OS V5.10+ - Set Default Start-of-job Fo [N] AX = FFB4h CH = printer number (00h LPT1, 01h LPT2, 02h LPT3) CH = new formfeed status (00h off, 01h on) Return: nothing See Also: AX=FFB3h,AX=FFC1h