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Typewriter - Wikipedia, the free encyclopedia |
 | | The method by which the typewriter actually marks the paper now varies as greatly as types of computer printers do, but until the end of the 20th century was by the impact of a metal (or, later, metallized plastic) type element against an "inked" ribbon which caused ink to be deposited on the paper. |
 | | Typewriter erasers were equipped with a brush for brushing away eraser crumbs and paper dust, and using the brush properly was an important element of typewriting skill, because if erasure detritus fell into the typewriter, a very small buildup could cause the typebars to jam in their narrow supporting grooves. |
 | | In the Eastern Bloc, typewriters (together with printing presses, copy machines, and later computer printers) were a controlled technology, with secret police in charge of maintaining files of the typewriters and their owners. |
| en.wikipedia.org /wiki/Typewriter (3485 words) |
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