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2. Photocopier - Wikipedia

   en.wikipedia.org/wiki/Photocopier

   A Xerox digital photocopier in 2010. A photocopier (also called copier or copy machine, and formerly Xerox machine, the generic trademark) is a machine that makes copies of documents and other visual images onto paper or plastic film quickly and cheaply.

3. Xerox 914 - Wikipedia

   en.wikipedia.org/wiki/Xerox_914

   An improved version, Camera #1, was introduced in 1950. Haloid was renamed Haloid Xerox in 1958, and, after the instant success of the 914, when the name Xerox soon became synonymous with "copy", would become the Xerox Corporation. In 1963, Xerox introduced the first desktop copier to make copies on plain paper, the 813. [9]

4. Duplicating machines - Wikipedia

   en.wikipedia.org/wiki/Duplicating_machines

   When spread over 20 or more copies, the cost per copy (2 to 4 cents) is close to photocopiers. But for every additional copy, the average cost decreases. At 100 prints, the master cost per copy was only 0.4–0.8 cents per copy, and the cost of the paper printed upon will start to dominate.

5. List of duplicating processes - Wikipedia

   en.wikipedia.org/wiki/List_of_duplicating_processes

   Manifold stylographic writer, using early "carbonic paper" Letter copying book process; Mechanical processes Tracing to make accurate hand-drawn copies; Pantograph, manual device for making drawn copies without tracing, can also enlarge or reduce; Printmaking, which includes engraving and etching. Relief printing including woodcut

6. Risograph - Wikipedia

   en.wikipedia.org/wiki/Risograph

   A good lifespan for a risograph might involve making 100,000 masters and 5,000,000 copies. Risograph printers use a soy ink made from vegetable soybean oil. One disadvantage of this soy based ink printing medium is that all paper stock has to be uncoated for the ink to dry and adhere to the paper stock.

7. Mimeograph - Wikipedia

   en.wikipedia.org/wiki/Mimeograph

   The primary preservation challenge is the low-quality paper often used, which would yellow and degrade due to residual acid in the treated pulp from which the paper was made. In the worst case, old copies can crumble into small particles when handled. Mimeographed copies have moderate durability when acid-free paper is used. [18]