Goofy Google Translate of fvj.co.jp/vending
The happy “Two-Down” vending machine that you often see on Tokyo’s street is Wex Corp’s private brand vending machine…with reasonable pricing. We are aggressively offering a “two-down” vending machine that finds new demand and receives wide support.
When I first came to Japan in 1984, the fixed price of drink was 110 yen ($1 USD) for a measly 190 ml (6.4 oz) can. In 1986, the standard-throughout-Japan price went up to 120 yen but over the next few years the normal 350 ml (12 oz) can was introduced. To pay 120 yen, you must use three coins: one 100 yen and two 10 yen coins.
The reason that these 100 yen vending machines are called TWO DOWN is that they only need one 100 yen coin for a drink, which is two coins “down” from the normally required three. The happy Wex-Man character carries a big mallet to “Hammer Down/ハンマーダウン” prices with Wex’s colorfully loud blue and yellow vending machines that, “anticipated the Era (of Japan’s endless deflation since 1992).”