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Mini thermal printer + Raspberry Pi printing gibberish
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Mini thermal printer + Raspberry Pi printing gibberish

by mrncrds on Fri Aug 28, 2020 7:07 am

Hi, I just bought an Adafruit mini thermal printer to use with a Raspberry Pi 4 in a project. I followed the steps in this tutorial https://learn.adafruit.com/networked-th ... spberry-pi

The problem is that its printing gibberish when the text has more than one line or when its an image. I've tried changing the baud rate and power supply (5V 2A, 5V 4A, 9V 2A) but nothing seems to work... any ideas what could be wrong?

Thank you
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mrncrds
 
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Re: Mini thermal printer + Raspberry Pi printing gibberish

by hereethan on Mon Oct 12, 2020 8:28 pm

Hope all is well! Did you ever figure out what was going on by chance? Been having the same issue, and running into walls too...

It looks like there is a chance that this is overall broken, and maybe the guide/project should be taken down pending Adafruit fixing this?

hereethan
 
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Re: Mini thermal printer + Raspberry Pi printing gibberish

by adafruit_support_carter on Wed Oct 14, 2020 3:15 pm

@mrncrds Have you tried running this again recently? There was some fixing and updating that was done here:
viewtopic.php?f=8&t=165745#p814708

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Please be positive and constructive with your questions and comments.