CPC B41J 2/45 (2013.01) [B41J 2/4753 (2013.01); B41J 2/525 (2013.01); B41J 3/50 (2013.01); B41M 5/26 (2013.01); G06K 15/129 (2013.01); G06K 15/1247 (2013.01); G06K 15/188 (2013.01); G06K 15/1878 (2013.01); H04N 1/6027 (2013.01); G03G 2215/00523 (2013.01); G06K 2215/0094 (2013.01)] | 21 Claims |
1. A method of printing data on a substrate using a printing device, the substrate comprising a color-changeable material, the method comprising:
receiving input data representative of an image comprising one or more colors to be printed on the substrate with the color-changeable material; and
controlling, using the input data, one or more laser diodes to illuminate the color-changeable material to print the image on the substrate, wherein controlling the one or more laser diodes comprises controlling a parameter of light emitted by the one or more laser diodes to cause a portion of the color-changeable material to change to a color of the one or more colors, wherein the color-changeable material is sensitive to the light illuminating the color-changeable material and one component of the color-changeable material changes to a particular color of a plurality of colors based on the parameter of the light illuminating the color-changeable material, wherein all chemical components of the color-changeable material are of a fixed chemical composition and a first area of the one component causes the color-changeable material to change to the particular color of the plurality of colors based on a first value of the parameter of the light illuminating the first area of the one component and a second area of the one component causes the color-changeable material to change to a second color of the plurality of colors based on a second value of the parameter of the light illuminating the second area of the one component;
wherein the color-changeable material of the first area is a same material as the color-changeable material of the second area.
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