| 摘要 |
A tray unit can accommodate a stack of recording mediums. A side fence performs alignment of the stack of the recording mediums in one direction and an end fence performs alignment in another direction. A first lever has a first corrugated portion and it pivots with the tray unit according to sliding motion of the side fence. A second lever has a second corrugated portion and it pivots with the tray unit according to sliding motion of the end fence. A sensor is provided integrally with the tray unit and has portions that are selectively pressed by a composite corrugated portion formed of the first corrugated portion and the second corrugated portion.
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