Hello!! my friend is a tattoo artist and she uses a stencil machine to transfer the images to the skin does anyone knows is its posible to uses this machine with edible ink instead. Thanks!

YOu can do this with an edible printer, but it would go on an icing sheet

Airbrushes are made for use on cakes.
I'm thinking that machine would poke holes in the cakes/icing.

I've seen a photo/chemical transfer print machine.... or are you talking about a stylus that burns holes for pouncing?

If you're working on fondant, you can take a scaled photo copy/laser or inkjet design of your work and airbrush the BACK of the paper with cocoa butter. This makes a quasi carbon paper. Lay the image cocoa butter side DOWN onto your fondant and trace the design with a stylus.

This tip is covered in one of my class handouts that has been made available for download:
http://chefrubber.com/index.php?page=cru