The real problem will be when the effect of the printed money hits the street.
Printed money needs to be worth something, and when it's not it takes more and more and more. Germany after WW I is an example. The US came off the gold standard during the Nixon administration, and now in some cases the buck is "backed" by subprime mortgages.
That's a bit like loaning your neighbor money with a pound of gold as collateral. A bit later he comes back and says that he has a gross of old hoe handles he's had to substitute.
And, a while back, without fanfare, ice cream packagers moved to 1.75 quarts instead of half-gallons. Same price.
Arf