Thermal printer isn't Printing Images

[kopii]

Hello,
I am using a 2 inch thermal printer with arduino uno r3. I used adafruit library for thermal printer i.e. "Adafruit_Thermal.h". With this library the text (Strings) are printing fine, but when there comes a bitmap image, the printer just prints some garbage dots.I made only one change in Adafruit_Thermal.cpp which is baudrate. My printer's baudrate is 115200. The printed output image is attached. Please guide me how to fix it.

[adafruit_support_bill]

Is this a printer from Adafruit? Not all thermal printers support the same protocols.

[kopii]

Is this a printer from Adafruit? Not all thermal printers support the same protocols.

This printer is not from Adafruit but its following all the POS Commands.

[adafruit_support_rick]

We really can't support products we didn't sell. I suggest you contact the vendor of your printer for technical support.

[kopii]

Can you please send me the user guide of the (2") thermal printer by adafruit????

[adafruit_support_rick]

Links are available under Downloads on the product page

[kopii]

Links are available under Downloads on the product page

Thanks. I have studies the printer by adafuit and the one I have. The POS Commands for both are exactly same. Can you tell me about the portion I need to modify in adafruit thermal library in order to print a bitmap???
Thanks

[adafruit_support_bill]

As Driverblock says, we can't provide support for products that we do not sell. The Adafruit Library works with the Adafruit printers. If your non-adafruit printer is not responding to the documented commands, then you need to talk to the people you bought it from.