Cassette detecting device and medium processing device using the same

A cassette detecting device comprising:

• a main board;
• and
• a plurality of cassettes connected to the main board through a connector,
• wherein the main board comprises:
• a first input unit connected to the connector;
• and
• a first comparing unit having one end connected to the first input unit and the other end connected to a first voltage,
• the cassette comprises:
• a second input unit connected to the connector;
• and
• a second comparing unit having one end connected to the second input unit and the other end connected to a second voltage,
• the comparing unit comprises a plurality of first comparators,
• among the plurality of first comparators, a third voltage is applied to one end of a first comparator corresponding to the position where the cassette is mounted,
• a supply voltage is applied to one end of a first comparator corresponding to the position where the cassette is not mounted, and
• the main board determines whether the cassette is mounted and its mounting position by comparing outputs of the plurality of first comparators.

A medium processing device comprising:

• a main board;
• a plurality of cassettes connected to the main board and storing a medium,
• wherein the main board comprises:
• a first input unit;
• and
• a first comparing unit connected to the first input unit and comprising a plurality of first comparators corresponding to the plurality of cassettes,
• each of the plurality of cassettes comprises:
• a second input unit connected to the first input unit;
• and
• a second comparing unit connected to the second input unit and comprising a plurality of comparators corresponding to the plurality of cassettes, and
• each of the plurality of cassettes determines its mounting position by comparing outputs of the plurality of second comparators.