a photographic printer , having a monitor for displaying thereon a simulated image of a picture frame of an original film to be printed , includes a printing optical system for forming an optical image of the picture frame to which a photographic paper is exposed so as to create a latent image thereon . an electronci imaging system has an image receiving surface which receives the optical image and converts it into video signals for displaying a simulated image on a screen of the monitor . the electronic imaging system is so disposed as to offset a center of the image receiving surface from an optical axis of the printing optical system , whereby displaying the simulated image of said optical image on the monitor screen leaves an area on the screen for displaying another image .