Image supply apparatus, image recording system, and control method

摘要

A recording system comprises an image supply device such as a digital still camera (DSC) and a recording apparatus such as a photo-direct (PD) printer, that can communicate via a versatile interface. After applications installed in the DSC and PD printer establish a communication procedure, the DSC issues a request to the PD printer. A time required for data transfer involved in the request is predicted. An elapse time until a response is received from the PD printer in response to the request is estimated on the basis of the time predicted for data transfer. If no response is returned from the PD printer within the estimated elapse time, the request is disabled.