An original feeding apparatus has a sensor for detecting an original by a light emitting element and a light receiving element. A first detector for detecting presence/absence of a sheet, and a second detector capable of being electrically switched between a detection possible condition that the presence/absence of the sheet can be detected and a detection impossible condition that the presence/absence of the sheet cannot be detected are provided and the second sensor is switched to the detection impossible condition when presence of the original is detected by the first detector.

 
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