This is more cunning than a fur coat with a fox in it. There is a photocopying shop in Tokyo, near one of the big universities, which is offering completely free photocopying. No charge at all.
God you're slow! Advertising, dear boy, advertising. The back of every sheet has an ad on it. And if you are running a student targeted business, that is damn good selling: not just the sheets all over the lecture halls but the buzz among the students about the free lunch.
Must be like one of those happy hour bars though: packed and smelly. Think I might prefer to pay my money and have a clear run at photocopying the lecturer's textbook in its entirety.