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Mimeograph

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720: 790: 932:(where the only ink available is depleted from the master image), mimeograph technology works by forcing a replenishable supply of ink through the stencil master. In theory, the mimeography process could be continued indefinitely, especially if a durable stencil master were used (e.g. a thin metal foil). In practice, most low-cost mimeo stencils gradually wear out over the course of producing several hundred copies. Typically the stencil deteriorates gradually, producing a characteristic degraded image quality until the stencil tears, abruptly ending the print run. If further copies are desired at this point, another stencil must be made. 802: 766: 173: 754: 778: 52: 149: 1021:, a thermal head for stencil cutting, and a large roll of stencil material entirely inside the unit. The stencil material consists of a very thin polymer film laminated to a long-fiber non-woven tissue. It makes the stencils and mounts and unmounts them from the print drum automatically, making it almost as easy to operate as a photocopier. The Risograph is the best known of these machines. 959:, etc.) would fall away during continued printing, causing ink-filled letters in the copies. The stencil would gradually stretch, starting near the top where the mechanical forces were greatest, causing a characteristic "mid-line sag" in the textual lines of the copies, that would progress until the stencil failed completely. 1063:. Because changing ink color in a mimeograph could be a laborious process, involving extensively cleaning the machine or, on newer models, replacing the drum or rollers, and then running the paper through the machine a second time, some fanzine publishers experimented with techniques for painting several colors on the pad. 634:
a sheet of varnished paper with caustic ink, which ate through the varnish and paper fibers, leaving holes where the writing had been. This sheet – which had now become a stencil – was placed on a blank sheet of paper, and ink rolled over it so that the ink oozed through the holes, creating a duplicate on the second sheet.
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patented his Automatic Cyclostyle. This was one of the first rotary machines that retained the flatbed, which passed back and forth under inked rollers. This invention provided for more automated, faster reproductions since the pages were produced and moved by rollers instead of pressing one single
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A major beneficiary of the invention of synthetic dyes was a document reproduction technique known as stencil duplicating. Its earliest form was invented in 1874 by Eugenio de Zuccato, a young Italian studying law in London, who called his device the Papyrograph. Zuccato's system involved writing on
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received US patent 180,857 for Autographic Printing on August 8, 1876. The patent covered the electric pen, used for making the stencil, and the flatbed duplicating press. In 1880, Edison obtained a further patent, US 224,665: "Method of Preparing Autographic Stencils for Printing," which covered
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By 1900, two primary types of mimeographs had come into use: a single-drum machine and a dual-drum machine. The single-drum machine used a single drum for ink transfer to the stencil, and the dual-drum machine used two drums and silk-screens to transfer the ink to the stencils. The single drum
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Compared to spirit duplication, mimeography produced a darker, more legible image. Spirit duplicated images were usually tinted a light purple or lavender, which gradually became lighter over the course of some dozens of copies. Mimeography was often considered "the next step up" in quality,
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Once prepared, the stencil is wrapped around the ink-filled drum of the rotary machine. When a blank sheet of paper is drawn between the rotating drum and a pressure roller, ink is forced through the holes on the stencil onto the paper. Early flatbed machines used a kind of
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between the type element and the paper is disabled so that the bare, sharp type element strikes the stencil directly. The impact of the type element displaces the coating, making the tissue paper permeable to the
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machine, sometimes was used to make mimeo stencils from a typed or printed original. It worked by scanning the original on a rotating drum with a moving optical head and burning through the blank stencil with an
909:. Text from electrostencils had lower resolution than that from typed stencils, although the process was good for reproducing illustrations. A skilled mimeo operator using an electrostencil and a very coarse 801: 736:(example Roneo) machine could be easily used for multi-color work by changing the drum – each of which contained ink of a different color. This was spot color for mastheads. Colors could not be mixed. 1522: 593:, were common technologies for printing small quantities of a document, as in office work, classroom materials, and church bulletins. For even smaller quantities, up to about five, a 1024:
Although mimeographs remain more economical and energy-efficient in mid-range quantities, easier-to-use photocopying and offset printing have replaced mimeography almost entirely in
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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
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the making of stencils using a file plate, a grooved metal plate on which the stencil was placed which perforated the stencil when written on with a blunt metal stylus.
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were printed by mimeograph because the machines and supplies were widely available and inexpensive. Beginning in the late 1960s and continuing into the 1970s,
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capable of producing hundreds of copies. Print runs beyond that level were usually produced by professional printers or, as the technology became available,
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is an ancient art, but – through chemistry, papers, and presses – techniques advanced rapidly in the late nineteenth century:
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process were both used extensively in schools to copy homework assignments and tests. They were also commonly used for low-budget amateur
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were used on the stencil to render lettering, illustrations, or other artistic features by hand against a textured plastic backing plate.
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Stencils were also made with a thermal process, an infrared method similar to that used by early photocopiers. The common machine was a
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Mimeographed images generally have much better durability than spirit-duplicated images, since the inks are more resistant to
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because it is a simple, cheap, and robust technology. Many mimeographs can be hand-cranked, requiring no electricity.
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and the necessary equipment became their own printing factory, allowing for greater circulation of printed material.
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The process was commercialized and Zuccato applied for a patent in 1895 having stencils prepared by typewriting.
1599: 1537: 73: 1093: 102: 1237:, Edison, Thomas A., "Method of Preparing Autographic Stencils for Printing", issued 1880-02-17 795:
Jackson & O'Sullivan's "The National" Duplicator. Produced in Brisbane, Queensland during World War II.
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base and later became an oil in water emulsion. This emulsion commonly uses turkey-red oil (sulfated
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The mimeograph became popular because it was much cheaper than traditional print – there was neither
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Letters and typographical symbols were sometimes used to create illustrations, in a precursor to
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During the declining years of the mimeograph, some people made stencils with early computers and
62: 209: 1177: 1495: 1306:"mimeograph. The American Heritage® Dictionary of the English Language: Fourth Edition. 2000" 1147: 690: 329: 299: 1083: 567: 349: 8: 1234: 1218:, Edison, Thomas A., "Improvement in autographic printing", issued 1876-08-08 1215: 1153: 1111:(also known as a "Rexograph" or "Ditto machine" in the US or a "Banda machine" in the UK) 714: 389: 164: 1128: 109: 1029: 1010: 917: 808: 189: 1280: 825: 701:, was another trademark used for mimeograph machines, the name being a contraction of 1157: 1108: 1048:, including club newsletters and church bulletins. They were especially popular with 1041: 1025: 983: 929: 860: 679: 664: 629:
A description of the Papyrograph method of duplication was published by David Owen:
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Company (and others) devised various methods to make mimeo stencils more durable.
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in the US Patent Office. It is currently listed as a dead entry, but shows the
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This article is about the stencil-based process. Not to be confused with the
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in the places where the optical head detected ink. It was slow and produced
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as a way to print illegal newspapers and publications in countries such as
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Mistakes were corrected by brushing them out with a specially formulated
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gradually displaced mimeographs, spirit duplicators, and hectographs.
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In addition, mimeographs were used by many resistance groups during
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in the middle 20th century, before photocopying became inexpensive.
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during World War II to produce underground newspapers and pamphlets
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Writing in the Shadow: Resistance Publications in Occupied Europe
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Over time, the term became generic and is now an example of a
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Mimeographs and the closely related but distinctly different
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Often, the stencil material covering the interiors of closed
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screen could make acceptable printed copies of a photograph.
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The image transfer medium was originally a stencil made from
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fans, who used them extensively in the production of
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which is sometimes incorrectly called a "mimeograph".
76:. Unsourced material may be challenged and removed. 743:nor skilled labor involved. One individual with a 759:Advertisement from 1889 for the Edison Mimeograph 1591: 847:) which gives it a distinctive and heavy scent. 1335: 1281:"Agreement, Thomas Alva Edison, Dick (A.B.) Co" 1450: 1373:"How to prepare a mimeograph stencil by hand" 1285:Thomas A. Edison Papers at Rutgers University 1259:Thomas A. Edison Papers at Rutgers University 531: 1579:Mimeograph: Operation Maintenance and Repair 1565:(1st ed.). London: Cass. ISBN 0-7146-3424-7. 1395: 723:A Rotary Cyclostyle No. 6 duplicating press. 152:Illustration of a typical mimeograph machine 667:when he licensed Edison's patents in 1887. 1535: 1480: 1278: 1252: 538: 524: 171: 1365: 1205:Improvement for stencils from typewriting 783:1918 illustration of a mimeograph machine 136:Learn how and when to remove this message 718: 147: 578:, and a copy made by the process was a 14: 1592: 1581:. Blue Ridge Summit: Tab Books, 1979. 1233: 1214: 1028:. Mimeography continues to be used in 872:. This is called "cutting a stencil". 816: 674:Registration no. 0356815 for the term 1403:"How to correct a mimeograph stencil" 850: 771:A wooden Edison's mimeograph size 12" 570:that worked by forcing ink through a 1145: 74:adding citations to reliable sources 45: 1464:. SIL International. Archived from 1409:. SIL International. Archived from 1379:. SIL International. Archived from 1349:. SIL International. Archived from 997: 574:onto paper. The process was called 24: 1571: 25: 1626: 1585: 1538:"Dr. Gafia's Fan Terms – VICOLOR" 1166:– via Google book preview. 807:Mimeograph machines used by the 800: 788: 776: 764: 752: 50: 1555: 1529: 1510: 1425: 1316: 1298: 1035: 641: 61:needs additional citations for 1323:Mimeograph Ink Vehicle Formula 1272: 1246: 1227: 1208: 1195: 1183: 1180:Advertisement via Google Books 1170: 1139: 1121: 923: 624: 13: 1: 1542:The FANAC Fan History Project 1115: 1094:List of duplicating processes 977: 708: 464: 239: 224: 1536:Rich Brown (June 26, 2006). 1255:"Circular Edison Mimeograph" 39:For the EP by Old 97's, see 7: 1077: 27:Type of duplicating machine 10: 1631: 1201:Eugenic de Zuccato (1895) 1129:"Definition of MIMEOGRAPH" 918:dot-matrix impact printers 896:Another device, called an 712: 686:as the owner of the name. 645: 612: 38: 31: 1437:psap.library.illinois.edu 875:A variety of specialized 839:The ink originally had a 503: 493: 485:Thermal-transfer printing 483: 473: 458: 448: 438: 428: 418: 408: 398: 388: 378: 368: 358: 348: 338: 328: 318: 308: 298: 288: 278: 268: 258: 248: 233: 218: 208: 198: 188: 1190:Antique Copying Machines 585:Mimeographs, along with 360:Photostat and rectigraph 1133:www.merriam-webster.com 159:Part of a series on the 724: 636: 554:(often abbreviated to 210:Intaglio (printmaking) 153: 1600:Obsolete technologies 1561:Stone, Harry (1996). 1488:"Duplicating stencil" 1312:on September 8, 2008. 1178:Library Journal 3:390 722: 691:genericized trademark 631: 558:, sometimes called a 330:Hot metal typesetting 151: 1468:on February 13, 2008 1154:Simon & Schuster 1146:Owen, David (2004). 1084:Duplicating machines 1030:developing countries 350:Daisy wheel printing 70:improve this article 1577:Hutchison, Howard. 1462:LinguaLinks Library 1413:on October 16, 2012 1407:LinguaLinks Library 1383:on October 22, 2011 1377:LinguaLinks Library 1353:on October 16, 2012 1347:LinguaLinks Library 1026:developed countries 972:xerographic copiers 855:One uses a regular 817:Mimeography process 715:Cyclostyle (copier) 568:duplicating machine 390:Dot matrix printing 165:History of printing 1192:from Office Museum 1011:digital duplicator 930:spirit duplicators 851:Preparing stencils 809:Belgian resistance 725: 663:was first used by 587:spirit duplicators 560:stencil duplicator 552:mimeograph machine 475:Solid ink printing 190:Woodblock printing 154: 18:Mimeograph machine 1498:on April 21, 2013 1332:Chemical Industry 1149:Copies in Seconds 1109:Spirit duplicator 1042:spirit duplicator 984:ultraviolet light 732:sheet at a time. 680:A.B. Dick Company 665:Albert Blake Dick 566:) was a low-cost 548: 547: 513: 512: 380:Spirit duplicator 290:Chromolithography 146: 145: 138: 120: 34:spirit duplicator 16:(Redirected from 1622: 1610:Printing devices 1605:Office equipment 1566: 1559: 1553: 1552: 1550: 1548: 1533: 1527: 1526: 1525: 1521: 1514: 1508: 1507: 1505: 1503: 1494:. Archived from 1484: 1478: 1477: 1475: 1473: 1454: 1448: 1447: 1445: 1443: 1429: 1423: 1422: 1420: 1418: 1399: 1393: 1392: 1390: 1388: 1369: 1363: 1362: 1360: 1358: 1339: 1333: 1320: 1314: 1313: 1308:. Archived from 1302: 1296: 1295: 1293: 1291: 1279:Dick (A.B.) Co. 1276: 1270: 1269: 1267: 1265: 1253:Dick (A.B.) 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Index

Mimeograph machine
spirit duplicator
Mimeograph (EP)

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History of printing

Woodblock printing
Movable type
Intaglio (printmaking)
Printing press
Etching
Mezzotint
Relief printing
Aquatint
Lithography
Chromolithography
Rotary press
Hectograph
Offset printing

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