Electrochromic scanning backing material

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United States of America Patent

PATENT NO 9942432
SERIAL NO

15240777

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Abstract

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A scanning device includes a transparent platen which receives a sheet to be scanned. A backing assembly is spaced from the platen by the sheet during scanning. The backing assembly includes a backing plate of a fixed color and an electrochromic layer intermediate the backing plate and the platen. The electrochromic layer has a first state in which the electrochromic layer is opaque and has a different color from the fixed color, and a second state, in which the electrochromic layer is transparent to expose the backing plate through it. A sensor is positioned to acquire an image of the sheet based on light passing through the platen. A controller selectively applies a voltage across the electrochromic layer to change the electrochromic layer between the first and second states.

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Patent Owner(s)

  • XEROX CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
de, Echaniz Sebastián Rodrigo Milton Keynes, GB 5 9
Golding, Paul Simon Hertford, GB 13 27
Thurnell, Benjamin Thomas Stevenage, GB 7 11
Wilsher, Michael John Letchworth, GB 51 159

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