Sometimes when viewing microfiche film on a Scan Pro reader, there is an area of missing print about the size of a quarter, however, not entirely circular in shape, and the edges diffused as opposed to defined. After a short period of time, I place the same film on the reader and the area is gone and the print is visible. Does anyone know why this is occurring?
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closed as off topic by mattdm, John Cavan♦, whuber, Nir, Mark Whitaker Dec 13 '12 at 9:39
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