Importance

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Abstract

A page scanner employing a plurality of light pipes such as optical fibers is gathered to provide a linear geometry at one end and merely gathered in a pigtail at the other. The pigtail is coupled optically to a photosensor array such as a CID which is accessible on a random access basis. The linear end is arranged astride a page to be scanned to define a scan segment across the page. During operation, the scan segment is exposed to light and the photosensors in the CID are read out in a sequence which organizes the pixel data in a proper sequence to correspond to the sequence of pixels in the linear end. The photosensors of the CID are all read with essentially identical soak-read times by accessing the sensors twice, the second time in a reverse order (and subsequent to the resetting to zero of all sensors in the array), and by storing and by normalizing the resulting data thus producing like exposure times for all sensors of the array and eliminating smearing.

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First Claim