Thermal printer isn't Printing Images

by kopii on Thu Feb 07, 2013 4:34 am

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.
Attachments
test print.jpg
Test Print Output
test print.jpg (93.8 KiB) Viewed 495 times
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Re: Thermal printer isn't Printing Images

by adafruit_support_bill on Thu Feb 07, 2013 6:40 am

Is this a printer from Adafruit? Not all thermal printers support the same protocols.
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Re: Thermal printer isn't Printing Images

by kopii on Thu Feb 07, 2013 7:21 am

adafruit_support wrote: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.
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Re: Thermal printer isn't Printing Images

by adafruit_support_rick on Thu Feb 07, 2013 8:39 am

We really can't support products we didn't sell. I suggest you contact the vendor of your printer for technical support.
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Re: Thermal printer isn't Printing Images

by kopii on Fri Feb 08, 2013 1:37 am

Can you please send me the user guide of the (2") thermal printer by adafruit????
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Re: Thermal printer isn't Printing Images

by adafruit_support_rick on Fri Feb 08, 2013 10:05 am

Links are available under Downloads on the product page
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Re: Thermal printer isn't Printing Images

by kopii on Tue Feb 12, 2013 1:02 am

driverblock wrote: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
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Re: Thermal printer isn't Printing Images

by adafruit_support_bill on Tue Feb 12, 2013 6:49 am

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.
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