RECORDER AND RECORDING METHOD

摘要

PROBLEM TO BE SOLVED: To solve a problem that forgery of a valuable paper, e.g. a ticket, is generally prevented by taking a measure for preventing forgery on the paper and a convenient and effective anti-forgery recording method has not been proposed. SOLUTION: An anti-forgery recording method is realized by using a recorder comprising a mechanism for recording with a visible light absorbing ink and an infrared light absorbing ink in combination.