A printing press is a device for applying pressure to an inked surface resting upon a print medium (such as paper or cloth), thereby transferring the ink.
This was a dramatic improvement on earlier printing methods in which the cloth, paper or other medium was brushed or rubbed repeatedly to achieve the transfer of ink, and accelerated the process. Typically used for texts, the invention and spread of the printing press was one of the most influential events in the second millennium.
The printing press was invented in the Holy Roman Empire by the German Johannes Gutenberg around 1440, based on existing screw presses.
The printing press spread within several decades to over two hundred cities in a dozen European countries.
According to wikipedia