1. An image printing apparatus comprising: a setting device for setting an image printing condition in printing a copied image from an original image; an image reader for reading original image of a plurality of pages on a page basis; a read start button which causes the image reader to start reading an original image; a storage for storing original images of a plurality of pages read by the image reader; an image printing device for printing a copied image on the basis of an original image stored in the storage in accordance with an image printing condition set by the setting device; an image printing start button which instructs the image printing device to start printing a copied image; and a controller for performing control to form originals constituted by a plurality of pages into a plurality of groups in printing copied images from the originals constituted by the plurality of pages, make the setting device set image printing conditions for each group, make the image reader read images on originals for each group when the read start button is pressed, make the storage store original images, and make the image printing device print copied images for each group in accordance with the image printing conditions set for each group with respect to all the groups when the image printing start button is pressed.