Color erasing apparatus and method of controlling temperature of heat source in color erasing apparatus
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United States of America Patent
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Jan 16, 2018
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Aug 25, 2016
filing date -
Apr 10, 2012
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Abstract
A color erasing apparatus according to an embodiment includes a color erasing unit with a heating unit that heats a paper to erase an image formed on the paper by a heat-erasable coloring material. A sensor outputs a sensor signal indicative of a thickness of the paper. A paper thickness detector determines the thickness of the paper based on the sensor signal. A heating unit controller controls temperature of the heating unit based on the thickness of the paper determined by the paper thickness detector. When the thickness of the paper determined by the paper thickness detector is greater than a predetermined thickness, the temperature is controlled to be a first temperature. When the thickness of the paper determined by the paper thickness detector is less than the predetermined thickness, the temperature is controlled to be a second temperature less than the first temperature.
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