NAME
        Reset -- reinitializes the parallel device

   FUNCTION
        This command resets the parallel device to its freshly initialized
        condition. It aborts all I/O requests both queued and current and
        sets the devices's flags and parameters to their boot-up time
        default values. At boot-up time the PTermArray is random, and it
        will be so also here.

   IO REQUEST
        io_Message      mn_ReplyPort initialized
        io_Device       set by opendevice
        io_Unit         set by opendevice
        io_Command      CMD_RESET (01)

   RESULTS
        Error -- if the Reset succeded, then io_Error will be null.
                 if the Reset failed, then the io_Error will be non-zero.