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?
closed as off topic by mattdm, John Cavan♦, whuber, Nir, Mark Whitaker Dec 13 '12 at 9:39
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