Tab positions as follows:
Tab positions are not more than 16.
The command can cancel previous tab positions setting.
K is used for a sign ,not for transmission.
When [d]k runs into NULL,tab setting is finished.
When [d]k is less than or equal to the preceding value [d]k-1, tab setting is
finished and the following data is processed as normal data.
Tab positions can be shifted by HT.
Tab position will change when margin-left changed.
When ESC@,resetting printer,power off,the command will failure.