A print medium is encoded with information bearing indicia. A transparent layer
or substrate which receives the printed information during printing has a first
surface, a second surface and a leading edge. A strip of tape is applied to the
first surface. A machine readable information bearing indicia is applied to at
least one surface of the tape strip. The indicia is formed by a pattern of fluorescent
material which upon excitation by radiation of a given spectral excitation range
emits radiation in a fluorescent spectral range. The tape reflects radiation in
the given excitation spectral range and in the fluorescent spectral range. One
type of indicia is a bar code pattern, although other types can also be employed.