Electronic apparatus, expendable item recycling apparatus, expendable item, electronic apparatus control method, expendable item recycling method, program, and computer-readable medium
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United States of America Patent
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Feb 19, 2008
Grant Date -
Feb 9, 2006
app pub date -
Aug 2, 2005
filing date -
Aug 3, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A technique is disclosed for storing in a recyclable expendable item used in an electronic apparatus first encrypted information generated by encrypting usable/unusable information pertaining to the expendable item using a first key, and a second key corresponding to the first key, decoding the first encrypted information using the second key; and controlling an operation of the electronic apparatus based on a decoding result of the decoding part and decoded usable/unusable information obtained by the decoding part.
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