Epson ESC/POS (TM-L90) Cant print barcode

引用來源
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applet.append("\x1D\x68\x50");
applet.append("\x1D\x6B\x02");
applet.append("496595707379\x00");
applet.append("\x0A");

applet.append("\x1D\x68\x64");
applet.append("\x1D\x6B\x02");
applet.append("496595707379\x00");
applet.append("\x0A");

applet.print();