| 摘要 |
In an embodiment, an apparatus for determining a state of stacked sheets composed of a plurality of sheets loaded on a table in a standing state includes an illumination unit to irradiate a slit light to an end face composed of side faces of the stacked sheets, a light receiving portion to receive a reflection light of the slit light irradiated by the illumination unit and reflected from the stacked sheets, a detecting unit to detect edges of the sheets based on the reflection light that is reflected from the stacked sheets and received by the light receiving portion, and a determination unit to determine a state of the stacked sheets based on the edges detected by the detecting unit.
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