Image printing error in Python 3, use bytearray()

benoitguigal / python-epson-printer

A python library for Epson thermal printers based on ESC/POS

MIT License

54 stars 29 forks source link

Open adamhrv opened 7 years ago

adamhrv commented 7 years ago

Thanks for building this. Printing in python2.7 works great. But in python3 the image printing did not output an image.

It seems the chr() function incorrectly encodes integers to bytes in python3.

Replacing the write_bytes function with the following works in python3:

def write_bytes(self, byte_array):
        msg = bytearray(byte_array)
        self.write(msg)

dsarahiiii commented 5 months ago

i cannot print and it actually send me a error with all the paper and ink lights on and blinking what can i do ??HELP!!!