Image printing apparatus having a camera mountable thereto

1. Field of the Invention An image printing apparatus includes a digital camera for taking a picture image and a main body for printing the image. The digital camera supplies a photographic image signal to the main body. The main body takes one screen of a still image signal out of the image signal supplied. The still image signal thus taken out is returned to the digital camera where it is delivered to a built-in monitor. The monitor displays thereon a still image corresponding to the delivered still image signal. Thereafter, if a print button is manipulated, a still image being displayed on the monitor is then printed by a printer provided on the main body.