Features for systems and methods for loading items into a tray are disclosed. The system may have an item conveyor configured to move the items towards a tray conveyor. The tray conveyor may be configured to move trays to receive items from the item conveyor into the tray. One or more sensors may detect the height of the items on the item conveyor and/or in the tray, and/or the position of the trays on the tray conveyor. A controller may receive data related to the one or more detected heights of the items and/or the position of the trays on the tray conveyor and correspondingly control movement of the item and/or tray conveyors for efficient loading of items into the tray and efficient movement of the trays for further processing. Tray conveyor movement sensors may detect movement of the trays or tray conveyors for further control or reliability of the system.

A medium handling apparatus according to the present disclosure comprises: a conveyor that transports media; recognition circuitry that recognizes the media transported by the conveyor; a safe that comprises disposed therein an internal storage configured to store the media; a discharge port that discharges the media to an external storage disposed outside the safe and configured to store the medium; and an attachment configured to connect the external storage with the discharge port, in which the external storage is any one of a plurality of the external storages having external shapes different to each other.