The Riso machine is a high volume copy machine that can make a lot of copies very quickly.
Things to note about this machine:
It can only make 20+ copies. It will not allow you to make less
It only prints on one side at a time. To do two sided, you will have to refeed the paper into the machine (Please see the video tutorial below for more details.)
You can print on cardstock and construction paper with this machine.
Your hands will get dirty handling the finished copies until the ink dries so be warned. :)
It does jam often. If your ink is very thick and dark on your original, you may want to use the copy machine instead.
Please watch this video to learn how to use the Riso machine.