| 摘要 |
A method of using a mobile device to read coded data from a print medium configured to be printed on by the mobile device in a print direction, the mobile device including a printer, a sensor and processing means, the print medium comprising a laminar substrate defining first and second opposite faces, the first face bearing coded data, the method comprising the steps of: using the sensor to sense at least some of the coded data from the print medium; using the processing means to decode the coded data; and printing onto the print medium only after the coded data has been decoded.
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