Patent ID: 8625132

Claim:
An image forming device comprising: a recordation unit to which a replacement is detachably attachable, the replacement comprising: a non-contact type IC tag that stores data concerning the replacement and is able to transmit the data through a radio signal; a holding member that holds the non-contact type IC tag; and a shielding member formed to alter a state of the non-contact type IC tag between an exposed state where the non-contact type IC tag is exposed to a detection unit of the image forming device and the detection unit is able to detect the non-contact type IC tag, and a shielded state where the non-contact type IC tag is shielded from the detection unit and the detection unit is not able to detect the non-contact type IC tag alternately, by changing relatively a positional relationship with the holding member, the image forming device further comprising: the detection unit configured to detect the non-contact type IC tag by receiving the radio signal transmitted from the non-contact type IC tag; a driving unit configured to drive the holding member to change the state of the non-contact type IC tag in a state where the replacement has been attached to the image forming device, between the exposed state and the shielded state alternately; and a controller configured to identify the non-contact type IC tag detected by the detection unit as that provided in the replacement being attached to the image forming device in response to the non-contact type IC tag of the replacement which has been attached to the image forming device being intermittently detected by the detection unit while the driving unit is activated, wherein, in the replacement, the holding member is a rotatable member configured to be rotatable about a rotation axis and to hold the non-contact type IC tag on a circumferential surface side with respect to a position of the rotation axis; and the shielding member is fixed in the replacement such that the state of the non-contact type IC tag rotating in accordance with rotation of the holding member alters between the exposed state and the shielded state, wherein, in the image forming device, the driving unit is configured to rotate the holding member of the replacement attached to the image forming device.