IBM produces its Copier I,
the first machine to use an organic polymer as the Photoconductor.
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2
As the conveyor belt(with the Photoconductor coating) moves, it takes the electrical shadow along with it too.
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3
English engineer Willoughby Smith
discovers that selenium is a particularly effective Photoconductor(it's later used by Chester Carlson in his invention of the photocopier).
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4
Its use as a Photoconductor in plain-paper copiers once was a leading application,
but in the 1980s, the Photoconductor application declined(although it was still a large end-use) as more and more copiers switched to organic Photoconductors.