Int 17 Fn F1 - Northnet Jetstream API - Print Data Buffer [P] AH = F1h CX = data buffer length DX = printer port (0-3) DS:SI -> data buffer Return: AX = status 0000h printer not ready (see also AH=02h) other printing started See Also: AH=00h,AH=F2h,AH=F3h,AH=F5h