The $500 (as of April 2, 2012) HP LaserJet Pro 400 M451dn produces extremely nice output--including photos--and is very speedy for a model in this price range. It also has an automatic duplexer, a ...

Unlike some printers that rely on liquid ink when generating documents, laser printers use a powdery substance known as "toner" that sets into place when heat is applied. This material is stored ...