| 摘要 |
An image processing device comprising a second side image sensor to determine whether the second side of a document also requires processing. The second side image sensor preferably uses a camera or measures reflected infrared light with an infrared photosensor. The invention relates to a wide variety of image processing devices such as copy machines, facsimile machines, annotators, scanners, printers, etc., which process documents. When the system detects an image or markings on the second side of a document it may merely alert the user or automatically process the second side of the document without additional user interaction.
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