Thermal printer act weird sometimes

For other supported Arduino products from Adafruit: Shields, accessories, etc.

Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.
Locked
User avatar
Nitchafame
 
Posts: 1
Joined: Sat Apr 02, 2016 8:28 pm

Thermal printer act weird sometimes

Post by Nitchafame »

I got my Thermal printer last week, and it was working fine.
But at some point, it stopped working and start random print characters, and the bitmap picture becomes dots.
I tried re-upload code and reopened, check all wires, nothing work.

Then I unplug and plug the printer again, suddenly, it works.
I have no idea what happened and want to fix the issue. I'm wondering if anyone could address the problem, or know what's going on here.
Attachments
IMG_6665.JPG
IMG_6665.JPG (195.37 KiB) Viewed 260 times

User avatar
adafruit_support_rick
 
Posts: 35092
Joined: Tue Mar 15, 2011 11:42 am

Re: Thermal printer act weird sometimes

Post by adafruit_support_rick »

If the problem happens again, try the self-test before you unplug the printer.

User avatar
luccasmarra
 
Posts: 1
Joined: Mon Jan 28, 2019 1:09 pm

Re: Thermal printer act weird sometimes

Post by luccasmarra »

I have like the same problem.All was working with my thermal printer (https://www.adafruit.com/product/597) good, but when i did this tutorial: https://learn.adafruit.com/networked-th ... i/overview / my printer not work good more. It print weird letters and now not work correctly.

I think the problem is charset, but i don't know how i can do for fix. I Need help.
Attachments
WhatsApp Image 2019-01-28 at 00.53.33 (2).jpeg
WhatsApp Image 2019-01-28 at 00.53.33 (2).jpeg (79.75 KiB) Viewed 136 times
Screen Shot 2019-01-29 at 3.48.33 PM.png
Screen Shot 2019-01-29 at 3.48.33 PM.png (936.63 KiB) Viewed 136 times
Screen Shot 2019-01-29 at 3.48.43 PM.png
Screen Shot 2019-01-29 at 3.48.43 PM.png (682.13 KiB) Viewed 136 times

Locked
Please be positive and constructive with your questions and comments.

Return to “Other Arduino products from Adafruit”