A duplicating or printing machine that used a stencil and rotating drum to produce copies, popular in offices and schools in the 20th century.
From cyclo- (circle, rotation) + -style (relating to an instrument), named for its rotating drum mechanism that applied ink through a stencil.
Before photocopiers and Xerox machines, the cyclostyle (also called a Roneo or mimeograph) filled every school office with that distinctive purple-inked smell—a whole generation's first experience with mass reproduction technology.
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