Well the library charges 25 cents a copy for 3-5 cents of paper,ink,electricity. So it depends on how many copies you run off and if you have any steady customers.so say you got a great location to offer your services for making copies and you happen to make 200 copies a day you could clear 40 dollars each day times say 5 days = 200 a week for say 48 weeks out of the year.so roughly 9600 dollars a year if you could get a steady stream of business on your machines. Then you have to take out for expenses,tax,rental fees. So I would guess you would also have to offer something like ups/fed ex shipping/or a mail service where you sell packaging materials and stamps.in other words you would have to offer more than just copying services . Something like a kinko's offers or a usps store offers.just for example -www.fedex.com/us/office/
