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Method and apparatus for transparency scanning with a duplex reflective scanner

  • US 7,142,335 B2
  • Filed: 07/22/2002
  • Issued: 11/28/2006
  • Est. Priority Date: 07/22/2002
  • Status: Active Grant
First Claim
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1. A document scanner for performing a duplex or a transparency scanning operation comprising:

  • a first camera including a first light source and a first aperture;

    an opposed second camera including a second light source and a second aperture, wherein each aperture of each camera is offset from the light source of the oppositely positioned camera during duplex scanning;

    a motor for moving said second camera from a first position for duplex scanning to a second position for transparency scanning;

    a controller for sending a drive signal to said motor to cause said motor to move said second camera from said first position to said second position when a transparency scanning mode is selected; and

    wherein said controller, during movement of the second camera from the first duplex scanning position to the second transparency scanning position, moves the second light source from a first offset position for duplex scanning to a second position aligned with the first aperture of the first camera to enable transparency scanning.

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