ELI5: How does a coin slot determine which coin is inserted?

Vertical Four-Coin Slot Mechanism coin slot mechanism As a result, the coin slot mechanism often jams, becomes sticky and hard to operate such that balls will not be released from the tray As coin slot piercing fail The most common coin slot mechanisms for washers are upright and sliding Dial slots are typical for dryers Repairing a Coin Slot Mechanism

coin slot body modification Coin slot is dimensioned to the width and height for the thickest and largest diameter coin to be accepted 2 Coin rolls down a chute and past identification