Patent ID: 8494930

Claim:
A method of charging for a use of a consumable, the method comprising: setting a base price of a consumable to be at most a production cost of the consumable, wherein the consumable is not a counterfeit consumable; providing the consumable at the base price of the consumable to a consumer for use in a machine; receiving an indication of a use of the consumable in the machine by the consumer; receiving an indication of an amount of the consumable used; updating, using one or more processors, an account of the consumer to reflect a first per-use charge based on the amount of the consumable used and a per-use rate for the machine; receiving an indication of a use of a counterfeit consumable in the machine by the consumer; receiving an indication of an amount of the counterfeit consumable used; and updating the account of the consumer to reflect a second per-use charge based on the amount of the counterfeit consumable used and per-use rate of the machine.