I don't see it. The Fed can print at any rate they want.
I do not think it is the case. It is debt money. They only can print when someone borrows. However we have fractional reserve, that is already insane. It is simply a question of what's happening quicker new borrowing or defaults.
The way the Fed creates money is to buy stuff.. They make the money out of thin air and buy stuff... If they want to put more money into the system, they can just start buying houses, cars, mortgage backed securities, planes, land, T-bills whatever.. Most of the money the fed creates goes to buy T-bills, so the Treasury/Fed Goverment gets first use of the "new" money, at the old rates, then the new money trickles into the system creating inflation.. But if the Fed wants to inject tons of money into the system, they can, at any time, in a variety of ways..