INT 21 - DOS 3.1+ network - GET PRINTER MODE
        AX = 5E05h
        BX = redirection list index (see AX=5F02h)
Return: CF set on error
            AX = error code (see AH=59h)
        CF clear if successful
            DX = printer mode (see AX=5E04h)
Note:   calls INT 2F/AX=111Fh with 5E05h on stack
SeeAlso: INT 2F/AX=111Fh