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ELECTRONIC DEVICE, CONSUMABLE RECYCLING DEVICE, CONSUMABLE, ELECTRONIC DEVICE CONTROL METHOD, CONSUMABLE RECYCLING METHOD, PROGRAM AND RECORDING MEDIUM
ELECTRONIC DEVICE, CONSUMABLE RECYCLING DEVICE, CONSUMABLE, ELECTRONIC DEVICE CONTROL METHOD, CONSUMABLE RECYCLING METHOD, PROGRAM AND RECORDING MEDIUM
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机译:电子设备,消耗性回收设备,消耗性电子设备控制方法,消耗性回收方法,程序和记录介质
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摘要
PROBLEM TO BE SOLVED: To encourage the use of an authentic product or a normal recycled product by easily identifying an unauthentic product and unnormalized product even in an environment where such unauthentic product or unnormalized product circulate.;SOLUTION: Together with usable/unusable information encrypted by a private key, a public key corresponding to a private key is stored in a recyclable consumable to be used in an electronic device. The electronic device using the consumable is caused to read the pieces of information (S2) and decode the usable/unusable information using the public key (S4). When the decoding succeeds and the usable/unusable information is usable, a regular operation is permitted (S10). Otherwise, a warning is provided (S8).;COPYRIGHT: (C)2006,JPO&NCIPI
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