... they do take coins (not notes

).
Originally Posted by
Mountain Man
Some machines do take cash though - although I'm not sure if all do.
You're both getting towards the right answer.
In this photo you'll see two ticket machines side-by-side. The one on the right accepts Euro bills, as you can see it has been made a little wider by the addition of a bill-accepting unit. Not all machines are like this, and not all stations are equipped with a bill-accepting machine.
Peace.