CASH PROCESSING DEVICE

A cash processing device including: one or more medium holder units, each medium holder unit including a depository and a liquid spray mechanism configured to spray liquid onto mediums held in the depository; one or more spray controllers, each spray controller capable of reading unique identification information associated with the one or more medium holder units, and including a controller configured to control operation of a corresponding liquid spray mechanism based on a wireless signal from a first wireless communication section; and a system controller including a state controller that monitors occurrence of an abnormal state based on an input detection signal, and a second wireless communication section that uses the unique identification information acquired from each of the spray controllers to wirelessly communicate a control signal related to liquid spraying in response to a monitoring outcome.