print SMS and imessages

If you have a Mac and your messages are there you can print them. Otherwise you will need to either screenshot them and print them or use 3rd party software, such as TouchCopy for a PC/Mac and print them using that software.

you must use a printer that supports airprint after that from imagesage, you save or select print option, find your printer then print

Where exactly do you find the print option in messages?