Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Timothy L. Strunk0
Christopher A. Adkins0
Donald F. Croley0
Michael C. Campbell0
Date of Patent
September 8, 2009
Patent Application Number
11131881
Date Filed
May 18, 2005
Patent Primary Examiner
Patent 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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