An image-printing system for printing a fine image represented by digital image data, which is being displayed by a television receiver. The system comprises an image-processing section 13, an image output section 13, a printer apparatus 5, and a printing control section 23. The image-processing section 13 processes an externally input image signal, generating image data. The image output section 13 outputs a packet to the printer apparatus 5. The packet complies with the IEEE (The Institute of Electrical and Electronic Engineers) 1394 standards and contains the image data generated by the image-processing section 13. The printing control section 23 controls the printer apparatus 5 so that the apparatus 5 may print the data represented by the image data contained in the packet that the image output section 13 has output to the printer apparatus 5.