DollarDaze draws a historical comparison that shows deflation can be a hazy illusion.
As an example of deflation leading to hyperinflation, consider the case of the Weimar Republic. In 1920, Germany experienced a deflationary collapse, with the average citizen finding it harder and harder to get enough money for necessities. Banks, short of money, could not honor checks, and businesses were strapped for cash to buy materials and meet payroll. Fearing a collapse that would throw millions of workers out on the street, the German government desperately printed money in an attempt to re-inflate the economy. During this period, despite the government's money printing, the mark actually gained in value against foreign currencies, so that prices of imported goods fell by some 50%.
Eventually, as a result of the money supply's rapid expansion, the nation's massive foreign debt, and the shrinking economy, German citizens lost all confidence in their currency, and the Weimar Republic experienced one of the worst cases of hyperinflation in modern economic history.