Printing Press

A printing press is a mechanical device for applying pressure to an inked surface resting upon a medium (such as paper or cloth), thereby transferring an image. The mechanical systems involved were first assembled in Germany by the goldsmith Johannes Gutenberg around 1440, based on existing screw-presses used to press cloth, grapes etc., and possibly to print woodcuts, which were printed in Europe before Gutenberg. Although both woodblock printing and movable type printing press technologies were already developed first in China and Korea in East Asia several hundred years earlier, Gutenberg was the first in Western Europe to develop a printing press.

While woodblock printing had arrived in Europe at approximately the same time paper did, this method was not as suitable for literary communication as it was in the east. Block printing is well-suited to the ancient written Chinese because character alignment is not critical, but the existence of over 100,000 ancient characters and hieroglyphic symbols made the ancient Chinese movable type technology somewhat inefficient and economically impractical affecting the profits of the ancient Chinese book publishers. With the Latin alphabet, however, the need for precise alignment and a much simpler character set positioned movable type as a great advance for the west.

Gutenberg is also credited with the introduction of an oil-based ink which was more durable than the previously used water-based inks. As printing material he used both vellum and paper, the latter having been introduced in Europe a few centuries earlier from China by way of the Arabs. In the Gutenberg Bible, Gutenberg made a trial of coloured printing for a few of the page headings, present only in some copies. A later work, the Mainz Psalter of 1453, presumably designed by Gutenberg but published under the imprint of his successors Johann Fust and Peter Schöffer, had elaborate red and blue printed initials.

For years, book printing was considered a true art form. Typesetting, or the placement of the characters on the page, including the use of ligatures, was passed down from master to apprentice. In Germany, the art of typesetting was termed the "black art," in allusion to the ink-covered printers. The Black Art Press & Print in Baltimore, MD adopted their name for this reason. It has largely been replaced by computer typesetting programs, which make it easy to get similar results more quickly and with less physical labor. Some practitioners continue to print books the way Gutenberg did. For example, there is a yearly convention of traditional book printers in Mainz, Germany.