X

This website uses cookies.

This website uses cookies to improve user experience. By using our website you consent to all cookies in accordance with our Cookie Policy.

I agree
Learn More
Great Geek Gifts in the Technabob Shop!Get Technabob Daily: Join our Mailing List! | Follow Us: Facebook | Twitter
Awesomer Media Sites: THE AWESOMER | MIGHTYMEGA | 95OCTANE
subscribe to our rss feedsubscribe via e-mailfollow technabob on twittertechnabob facebook fan pageGoogle+follow us in feedly
Follow Us:
Cool Gadgets, Gizmos, Games and Geek Stuff on Technabob

Invisible Ink Printer Hack: Way Too Much Work For Something You Can’t See

by Paul Strauss
Advertisement

If you ever wanted to send secret messages using your computer, you could just embed secret messages in your image files. But if you want to print out hidden messages, you can hack your inkjet printer to print invisible messages.

make_invisible_ink_printer

The guys over at Make: put together this hack where you crack open the cartridge from your inkhet printer and replace they yellow ink with lemon juice. Print anything you want in yellow, and the page looks blank. But apply some iodine or heat the page with an iron, and your secret message will be revealed. Check out the overly complex and sloppy process in the video below:

It’s a huge pain in the ass, and looks really messy, but the results are kind of cool. Of course, you could do the same with just some lemon juice and a paintbrush or Q-Tip, but what fun would that be. This is way more geeky.

You can grab the full instructions from Make: here [PDF file].

Deals in The Technabob Shop




More from Awesomer Media...

Mean Bean (Trailer 2)

Mean Bean (Trailer 2)

DIY Jurassic Park Amber Cane Replicas

DIY Jurassic Park Amber Cane Replicas

McLaren BP23 Hyper-GT Already Sold out

McLaren BP23 Hyper-GT Already Sold out

Mazda Motorsports Launches Hardtop for MX-5 Racers

Mazda Motorsports Launches Hardtop for MX-5 Racers

Gentle Giant Spider-Man Collectors Gallery 1/8 Scale Statue

Gentle Giant Spider-Man Collectors Gallery 1/8 Scale Statue

Matrix 4 Reboot Gets Fan-made Trailer

Matrix 4 Reboot Gets Fan-made Trailer

Advertisement