When people say printing money they can mean many different things. For example one can inject liquidity into the system through quantitative easing, where a central bank purchaches securities in an open market thereby swapping treasuries for cash.
However to me printing money will forever mean debt monitization, where central bank prints money to pay off debt. That cases devaluation of the currency.
Now liquidity injections by central banks do largely increase money supply in the economy which in the long term does result in equivalent increase in inflation, however, and it's a big one, short term it does not. Moreover inflation depends on velocity of money and even though since 2008 there's been huge increase in money supply it did not in fact cause high inflation (apart from the UK, UK central bank is like the worst out of all developed countries) because all that liquidity that banks receive just sits at the bank or goes right back into safe assets as opposed to loans to businesses. So even though we have high increase in money supply, the velocity of money is very low, we are locked in fear, a long with new basel accord banks are putting all their effort into staying alive, hence we do not see high inflation.
Of course while things start improving and banking sector starts moving again along with the velocity of money, central banks will start reducing the money supply as to prevent high inflation. Big question is, is this paralyzing fear in financial sector here to last for 10 years or more.