Conveying apparatus and tray unit

A tray unit used for a conveying apparatus, the conveying apparatus comprising (a) a plurality of receiving trays each comprising a receiving surface configured to receive a medium, the plurality of receiving trays being arranged in a vertical direction, the plurality of receiving trays comprising (i) a lowest tray located at a lowest position among the plurality of receiving trays and (ii) a first receiving tray that is each of at least one of the plurality of receiving trays other than the lowest tray, (b) a conveying mechanism configured to convey the medium to the receiving surface of one of the plurality of receiving trays, selectively, and (c) a supporter supporting the plurality of receiving trays,

• the tray unit comprising the plurality of receiving trays,
• the first receiving tray being supported by the supporter so as to be situated selectively to one of a receiving position at which the first receiving tray receives the medium conveyed by the conveying mechanism and an upper position at which a position of a downstream end of the first receiving tray in a conveying direction in which the medium is conveyed by the conveying mechanism is higher than a position of the downstream end of the first receiving tray located at the receiving position,
• the plurality of receiving trays comprising:
• an uppermost tray located at a highest position among the plurality of receiving trays;
• and at least one second receiving tray that is at least one of the plurality of receiving trays other than the uppermost tray,
• each second receiving tray of the at least one second receiving tray being supported by the supporter so as to be situated selectively to one of the receiving position and a lower position at which a position of a downstream end of said each second receiving tray in the conveying direction is lower than a position of the downstream end of said each second receiving tray located at the receiving position,
• the at least one second receiving tray comprising one second receiving tray disposed just below the first receiving tray, with no receiving tray between the one second receiving tray and the first receiving tray,
• the tray unit further comprising a transmission mechanism configured to perform at least one of:
• transmission of upward movement that is movement of the first receiving tray from the receiving position to the upper position, to downward movement that is movement of the one second receiving tray disposed just below the first receiving tray from the receiving position to the lower position;
• and transmission of the downward movement of the one second receiving tray to the upward movement of the first receiving tray.