I just bought four brand new multifunction copiers for my father in laws business. He was very pleased with the copiers, but is concerned that the ink or toner for them might be very expensive. I honestly did not even think about the ink prices when I bought them, but was just thrilled with the great price I got on the copiers alone. My father in law says that if the ink is going to be terribly expensive, he may take back the copiers and instead buy standard printers. Just how expensive is the ink or toner for these types of copiers?