Hello again, I want to update my question: using thermal printer to print image containing two graphs (width is 384pixel wide as it is expected from the printer). Adafruit thermal printer link <https://learn.adafruit.com/mini-thermal-receipt-printer/bitmap-printing> states that thermal printer can just print binary(monochrome) images. So I converted png image to bmp using zam-zam online vonverter. And used LCD Assitant software to get data values of the image. After this I run the python code to print the image as printertest.py did from PIL import Image from Adafruit_Thermal import * printer = Adafruit_Thermal("/dev/ttyO4", 19200, timeout=5) import rot as result printer.printBitmap(result.width, result.height, result.data) printer.println("Adafruit!") printer.feed(1)
But nothing got printed, excepts Adafruit line. When I did print of png image converted to monochrome image by using PIL library, at least I was able to see unclear graph. How can I get clear graph prints from adafruit thermal printer? I really appreciate all your suggestions. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
