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use a thermal printer with a raspberry

i wrote a code usingg python 2.7 to print a few lines ... using the termina ( ./file.py) the printer work fine but when i prss F5 it tell that i can use the printer .
this is my code

Epson =printer.Usb(0x04b8,0x0e15)
Epson.set("CENTER","B","B",2,2)
Epson.text(" my text ")
Epson.cut()
Jul 16 '16 #1
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