CPC H04N 1/00047 (2013.01) [H04N 1/00005 (2013.01); H04N 1/00013 (2013.01); H04N 1/00037 (2013.01); H04N 1/00063 (2013.01); H04N 1/00074 (2013.01); H04N 1/00084 (2013.01); H04N 1/00798 (2013.01); H04N 1/02815 (2013.01); H04N 1/0692 (2013.01); H04N 1/124 (2013.01); H04N 1/4097 (2013.01); H04N 2201/0446 (2013.01); H04N 2201/0458 (2013.01)] | 9 Claims |
1. A reading device comprising:
an image reading device configured to read an image on a recording medium being conveyed;
a background device serving as a background image when the image is read by the image reading device; and
a foreign-object detector configured to compare a first read image obtained as the background device is read by the image reading device with a second read image obtained as the background device and the recording medium are read by the image reading device to detect an attached foreign object.
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