0

May 4, 2015 AT 4:11 pm

Hacking your Adafruit Mini Thermal Receipt Printer

bigprints

Look at those huge, razor-sharp image prints! You want some?

We’ve discovered that many of our thermal receipt printers…at least anything shipped in the last year or so…have a hidden capability, hardware handshaking…allowing an attached Arduino to run the printer at full-tilt. Pages feed fast and smooth, huge bitmaps don’t become garbled due to buffer overflows.

This does require a late-model printer (looks like firmware versions 2.64 & 2.68 support it, but perhaps others too) and a little bit of surgery. It’s a simple modification, just soldering on one wire, but this is a warranty-voiding procedure and might not be for everybody.

You can read about the hack in our Mini Thermal Receipt Printer guide on the Adafruit Learning System.


Check out all the Circuit Playground Episodes! Our new kid’s show and subscribe!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground”Adafruit’s Apps!


Maker Business — Lessons Learned Scaling Airbnb 100X

Wearables — ABS ABC

Electronics — When do I use X10?

Biohacking — The Quantified Self Approach to Lowering Blood Glucose

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.