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The Original Heidelberg Platen Press was a letterpress printing press manufactured by the Heidelberger Druckmaschinen company in Germany. It was often referred to as the Heidelberg Windmill, after the shape and movement of its paper feed system. When introduced, it was also called the "Super Heidelberg" or the "Super Speed". [1] [2]
Heidelberger Druckmaschinen AG (German pronunciation: [ˈhaɪdl̩ˌbɛʁɡɐ ˈdʁʊkmaˌʃiːnən ʔaːˈɡeː] ⓘ), sometimes referred to as Heidelberg or Heideldruck for short, is a German precision mechanical engineering company with registered offices in Heidelberg (Baden-Württemberg) and headquarters in nearby Wiesloch-Walldorf (Baden-Württemberg). [3]
Offset printing is a common printing technique in which the inked image is transferred (or "offset") from a plate to a rubber blanket and then to the printing surface. When used in combination with the lithographic process, which is based on the repulsion of oil and water , the offset technique employs a flat ( planographic ) image carrier.
The letterpress printing process remained virtually unchanged until the 1950s when it was replaced with the more efficient and commercially viable offset printing process. The labor-intensive nature of the typesetting and need to store vast amounts of lead or wooden type resulted in the letterpress printing process falling out of favour.
The problem can occur with most types of printing, and is avoided by the use of slipsheets between copies (so any ink transfer occurs onto discardable paper) or anti-set-off spray powder. The term in offset printing also refers to the unwanted transfer of ink to rollers and friction points throughout the printing press. Ink that is not properly ...
In Europe, the distinction is made between presses that have cylinder bearings, and duplicators, which do not. Duplicators were manufactured by Heidelberg (T-offset), American Type Founders (Chief and Davidson lines), A.B. Dick Company, and Addressograph-Mulitilith.