USING DEVICE, CONTROL METHOD, AND PROGRAM

摘要

A consumable product (200) can be detached from a using device (100), and includes a memory (201), and the memory (201) includes a first recording area that rewritably records a remaining amount of the consumable product (200), and includes a plurality of second recording areas for specifying a state of the remaining amount of the consumable product (200) recorded in the first recording area. The using device (100) of the present embodiment reads the remaining amount of the consumable product (200) recorded in the first recording area, determines whether or not the read remaining amount of the consumable product (200) is positioned in a range between the second recording area in a writing-prohibition state and the second recording area in a writable state, determines that the consumable product (200) is a genuine product when the remaining amount of the consumable product (200) is positioned in the range, and determines that the consumable product (200) is an illicit product when the remaining amount of the consumable product (200) is not positioned in the range.