This is the interactive simulation on how to use train ticket machine in Haneda Airport or other place in Tokyo. Just click on where the instruction lead you to the red oval area.
Assuming you are going to Shinagawa Station which cost you 410 yen, you will try to buy ticket on this simulation machine. Please try to follow the instruction and hope this will help you to understand how it work.
Off course this simulation machine is not 100% the same as the original one. I will try to keep update the code.