Minnesota Mining and Manufacturing Company

David W Swan

Mark T Leonard

David P Smith

A thermal imaging device having a print surface adapted to provide localised heating to a medium comprising a thermally activatable component of an imaging forming system, the device comprising the following sequential layers:

Thermal imaging system

A thermal imaging device having a print surface adapted to provide localised heating to a medium comprising a thermally activatable component of an imaging forming system, the device comprising the following sequential layers: (a) a transparent or semi-transparent electrically conductive layer, (b) a photoconductive layer which when illuminated by radiation of 633 nm wavelength and intensity of 4.0.times.10.sup.6 W/m.sup.2 has a conductivity of at least 0.01 S/cm and a photosensitive ratio of at least 1.times.10.sup.3,

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Harlow, United Kingdom

David W Swan