An image producing device by which image data that is produced by an image producing unit is written in an external memory medium, or by which image data is read from the external memory medium and written to a device main unit of the image producing device, the device main unit includes: a record unit configured to record first identification information of image data that is written in the external memory medium; a data storage unit configured to store image data that is recorded by the record unit; and a data operation unit configured to move image data from the external memory medium to the data storage unit based on the first identification information in the record unit.