How to use real printer with Processing :
- Install IrfanView on your computer.
- Go to your C:/Program Files (x83)/IrfanView/ Foler, and create a link of the i_view32.exe application
- Copy the link in your sketch Data folder.
- Copy and modify the line to print what you want :
Line for processing sketch :
launch(dataPath("i_view32.lnk"),dataPath("exemple.jpg"),"/print");