An image recorder for recording image data into a recording medium and supplying the image data recorded into the recording medium to a connected host through a predetermined communication interface, according to one of a plurality of different communication specifications, includes: a device configured to notify the host of information indicating a plurality of different usable communication specifications, in reply to a request from the host; a device configured to check the communication specification specified by the host, according to a return from the host based on the information indicating the different usable communication specifications notified by the notifying device; and a device configured to supply the image data recorded in the recording medium to the host through the predetermined communication interface, according to the communication specification checked by the checking device.