There are plenty of times where printing money didn't produce hyperinflation. For example, the US pursued a policy called quantitative easing over the last decade which involved dumping trillions of dollars into the coffers of banks; inflation is still sluggish. This is because there are four terms in the equation of exchange: MV=PQ. If you increase M (money), P (price) will only go up if V (the velocity of money) and Q (demand) remain constant. In the US, V was very low and there was a lot of slack in our productive capacity (mostly because construction had overbuilt during the bubble years). The result was no hyperinflation or inflation of any kind.