Title: Science and invention in Birmingham
Content: he also invents an ink to work with it. This is the first widely used copy machine for offices and is a commercial success, being used for over a century. This letter copying press is considered to be the original photocopier. 1781: James Watt markets his rotary-motion steam engine. The earlier steam engine's vertical movement was ideal for operating water pumps but the new engine can be adapted to drive all sorts of machinery. Richard Arkwright pioneers its use in his cotton mills and within 15 years there are 500+ Boulton & Watt steam engines in British factories and mines.

Title: Chester Carlson
Content: fact that xerography was now the company's main line of business. The first device recognizable as a modern photocopier was the Xerox 914. Although large and crude by modern standards, it allowed an operator to place an original on a sheet of glass, press a button, and receive a copy on plain paper. Manufactured in a leased building off Orchard Street in Rochester, the 914 was introduced to the market at the Sherry Netherland Hotel in New York City on September 16, 1959. Even plagued with early problems—of the two demonstration units at the hotel, one caught fire, and one

Title: Photostat machine
Content: by one, other methods appeared. These included the "manifold writer," developed from Christoph Scheiner's pantograph and used by Mark Twain; copying baths; copying books; and roller copiers. Among the most significant of them was the Blue process in the early 1870s, which was mainly used to make blueprints of architectural and engineering drawings. Stencil duplicators (more commonly known as "Mimeograph machines") surfaced in 1874, and the Cyclostyle in 1891. All were manual and most involved messy fluids. George C. Beidler of Oklahoma City founded the Rectigraph Company in 1906 or 1907, producing the first photographic copying machines; he later moved

Title: Chester Carlson
Content: 1948, ten years to the day after that first microscope slide was copied, the Haloid Company made the first public announcement of xerography. In 1949, it shipped the first commercial photocopier: the XeroX Model A Copier, known inside the company as the "Ox Box." The Model A was difficult to use, requiring thirty-nine steps to make a copy, as the process was mostly manual. The product would likely have been a failure, except that it turned out to be a good way to make paper masters for offset printing presses, even with the difficulty of use. Sales of the Model

Title: Karl Drais
Content: riders took to the sidewalks and moved far too quickly, endangering pedestrians. Consequently, authorities in Germany, Great Britain, the United States, and even Calcutta banned its use, which ended its vogue for decades. Drais also invented the earliest typewriter with a keyboard (1821). He later developed an early stenograph machine which used 16 characters (1827), a device to record piano music on paper (1812), the first meat grinder, and a wood-saving cooker including the earliest hay chest. He also invented two four-wheeled human powered vehicles (1813/1814), the second of which he presented in Vienna to the congress carving up Europe

Question: Who invented the world's first photocopier?
Answer: Chester Carlson