Engaged member, engaging member, detection device, detection method, and detection program

A fixing member, comprising:

• a recessed portion being formed;
• and
• a plurality of conduction paths electrically insulated from each other, and that each include:
• a first part that is exposed at a plurality of positions including a first position in an inside of the recessed portion and in a vicinity of an innermost, second part and a second position in the inside of the recessed portion and in a third part other than the vicinity of the innermost, second part;
• and
• a fourth part that is exposed to an outside of the recessed portion, wherein
• a predetermined member that contacts the first position and the second position is able to press a periphery of an opening, fifth part of the recessed portion,
• wherein the first position is included in a conductive terminal having a protruding shape, the conductive terminal being part of the plurality of conduction paths,
• wherein the conductive terminal includes a first conductive member, a second conductive member, and a conductive elastic member,
• the first conductive member is electrically connected to the second conductive member by the conductive elastic member, at least part of the first conductive member is accommodated, by pressing, in a sixth part surrounded by the second conductive member, and
• the first position is provided in the first conductive member.