Method of authenticating a consumable
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United States of America Patent
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Jul 10, 2007
Grant Date -
Nov 11, 2004
app pub date -
May 6, 2003
filing date -
May 6, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A method of authenticating a consumable used in an imaging device includes the steps of providing the consumable with a memory; monitoring usage of the consumable; determining whether the consumable has reached a usage threshold; and, if the consumable has reached the usage threshold, then performing the further steps of: renewing the consumable; generating an authentication code signifying the renewing of the consumable; and storing the authentication code in the memory.
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