| 摘要 |
PURPOSE:To reduce the number of parts, by performing the positioning of a housing position in which the tray of a housing part is housed by detecting the tray or a detecting member adjacent to a prescribed side by a photosensor. CONSTITUTION:The photosensor 41 to detect the tray 1 is arranged separately from the supporting position of the tray in a supporting body by interval of the trays to be housed adjacently to the housing part 18, and also, the detecting member is provided separately by the interval from the tray 1 to be housed in an end on one side of the housing part 18. And by detecting the tray 1 or the detecting member adjacent to the prescribed side, the positioning of the housing position where the tray 1 is housed, in the housing part 18, is performed. In such way, it is possible to perform the positioning of the housing position of the housing part 18 by using the photosensor to detect the presence/absence of the tray 1 at each housing position of the housing part 18, and to reduce the number of the parts, and to improve workability.
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