Diagnostic apparatus, system, and diagnostic method

A system in which a transport apparatus that transports a medium and an information processing apparatus are connected to each other via a network, wherein

• the information processing apparatus includes
• a communication section that communicates with the transport apparatus,
• an acquisition section that acquires measurement data indicating a period of time required to transport the medium in a predetermined transport section on a transport path of the transport apparatus,
• a storage that stores the acquired measurement data,
• a setting section that sets a determination criterion used for error determination of the transport apparatus by time-series analysis performed on the stored measurement data,
• a determination section that determines, when measurement data is newly acquired from the transport apparatus, an error relating to transport of the new measurement data based on the new measurement data and the determination criterion, and
• a notification section that notifies a result of the determination of the error, and
• the setting section sets the determination criterion at a time point when the new measurement data is acquired based on a tendency of a temporal change of the stored measurement data.

A diagnostic method that causes a computer to execute:

• acquiring measurement data indicating a period of time required to transport a medium in a predetermined transport section on a transport path of a transport apparatus that transports the medium;
• storing the acquired measurement data in a storage;
• setting a determination criterion used for error determination of the transport apparatus by time-series analysis performed on the stored measurement data;
• determining, when measurement data is newly acquired from the transport apparatus, an error relating to transport of the new measurement data based on the new measurement data and the determination criterion;
• and
• notifying a result of the determination of the error, wherein
• in the setting, the determination criterion at a time point when the new measurement data is acquired is set based on a tendency of a temporal change of the stored measurement data.