A thermoresponsive coloring formulation for use on a reimageable image carrier is provided. An image may be created by exposing the thermoresponsive coloring formulation to heat and erased by exposing it to white light....http://www.google.com.au/patents/US6500245?utm_source=gb-gplus-sharePatent US6500245 - Thermoresponsive coloring formulation for use on reimageable image carrier
