•Printer return immediately after receiving the command associated state
• this command try not to put in command list between 2 or more bite .
Though printer being forbid by ESC=,this command still effective.
Printer transmit current situation ,each situation show by 1 bite data.
It is not sure host computer will receive printer transmit situation.
Printer executed immediately after received the command.
The command only effective for serial printer.Printer start to work immediately
after receiving this command at any situation.
n=1:printer status