A consumer device is described, comprising a sensor which is adapted to register sensor data that describe a physical behavior of an authentication chip of a consumable component, an authentication circuit which is adapted to implement a machine learning model that is trained to classify consumable components with the aid of sensor data that describe the physical behavior of authentication chips of the consumable components into originals and copies, to deliver the registered sensor data to the machine learning model, and to authorize the use of the consumable component by the consumer device depending on whether the machine learning model classifies the consumable component as original.