METHOD FOR COLOR ERASING PROCESS AND COLOR ERASING DEVICE
First Claim
1. A method for color erasing process, comprising:
- supplying a power to a heat source configured to heat a sheet having an image formed thereon using a color erasable material to be color erased by heat;
causing the heat source to generate heat by supplying the power;
stopping the power supply to the heat source for a predetermined period of time if the temperature of the heat source exceeds a predetermined reference value that is lower than a color erasing temperature of the color erasable material; and
performing, after a passage of the predetermined period of time, maintenance control that is power supply control to maintain the temperature of the heat source at a target temperature set as a temperature used during the color erasing process.
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Abstract
According to an embodiment, a method for color erasing process includes the steps of: supplying a power to a heat source configured to heat a sheet having an image formed thereon using a color erasable material so as to cause heat generation as warming-up control; stopping the power supply to the heat source for a predetermined period of time in the warming-up control if the temperature of the heat source is increased starting from a temperature lower than a predetermined reference value that is lower than a color erasing temperature of the color erasable material and exceeds the predetermined reference value; performing maintenance control that is power supply control to maintain the temperature of the heat source at the target temperature; and performing, after the passage of the predetermined period of time, a color erasing process by the heat source.
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Citations
20 Claims
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1. A method for color erasing process, comprising:
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supplying a power to a heat source configured to heat a sheet having an image formed thereon using a color erasable material to be color erased by heat; causing the heat source to generate heat by supplying the power; stopping the power supply to the heat source for a predetermined period of time if the temperature of the heat source exceeds a predetermined reference value that is lower than a color erasing temperature of the color erasable material; and performing, after a passage of the predetermined period of time, maintenance control that is power supply control to maintain the temperature of the heat source at a target temperature set as a temperature used during the color erasing process. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A color erasing device comprising:
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a heat source configured to heat a sheet having an image formed thereon using a color erasable material to be color erased by heat; a temperature detecting section configured to detect a temperature of the heat source; a heat source controller configured to supply a power to the heat, to stop the power supply to the heat source for a predetermined period of time if the temperature of the heat source detected by the temperature detecting section exceeds a predetermined reference value that is lower than a color erasing temperature of the color erasable, and to perform, after a passage of the predetermined period of time, maintenance control that is power supply control to maintain the temperature of the heat source at a target temperature set as a temperature used during a color erasing process; and a sheet feeding section configured to feed a sheet to the heat source for a color erasing process after the passage of the predetermined period of time. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification