Adafruit Thermal Printer Guts Issue
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- bardankafle
- Posts: 2
- Joined: Thu Jan 05, 2023 6:47 pm
Adafruit Thermal Printer Guts Issue
Hi, I'm having an issue printing with the thermal printer guts using A_printertest on an Arduino Uno. I have it all wired correctly and the red light turns on and blinks. I've tried supplying it the minimum voltage/amperage as well as the max however nothing prints. I've also tried turning the ribbon cable around. Nothing seems to be working, does anyone have any ideas on how I can get it to print?
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- bidrohini
- Posts: 202
- Joined: Thu Oct 20, 2022 10:03 am
Re: Adafruit Thermal Printer Guts Issue
Do you have the same printer that is shown here? https://learn.adafruit.com/mini-thermal ... controller
Or anything else?
Or anything else?
- bardankafle
- Posts: 2
- Joined: Thu Jan 05, 2023 6:47 pm
Re: Adafruit Thermal Printer Guts Issue
https://www.adafruit.com/product/2753bidrohini wrote: ↑Tue Jan 10, 2023 9:13 am Do you have the same printer that is shown here? https://learn.adafruit.com/mini-thermal ... controller
Or anything else?
its this but should be the same yes
- adafruit_support_carter
- Posts: 29159
- Joined: Tue Nov 29, 2016 2:45 pm
Re: Adafruit Thermal Printer Guts Issue
You need to also connect a GND wire back to the UNO. This is the "signal" ground as mentioned here:
https://learn.adafruit.com/mini-thermal ... ts-3133462
You only have power ground connected.
Also be careful about the actual pins/wires being used. See comment at that link about verifying pins by reading the printer's PCB labels.
https://learn.adafruit.com/mini-thermal ... ts-3133462
You only have power ground connected.
Also be careful about the actual pins/wires being used. See comment at that link about verifying pins by reading the printer's PCB labels.
Please be positive and constructive with your questions and comments.