The Collaborative International Dictionary
Photographic \Pho`to*graph"ic\, Photographical \Pho`to*graph"ic*al\, a. [Cf. F. photographique.] Of or pertaining to photography; obtained by photography; used ib photography; as a photographic picture; a photographic camera. -- Pho`to*graph"ic*al*ly, adv.
Photographic printing, the process of obtaining pictures, as on chemically prepared paper, from photographic negatives, by exposure to light.
Wikipedia
Photographic printing is the process of producing a final image on paper for viewing, using chemically sensitized paper. The paper is exposed to a photographic negative, a positive transparency (or slide), or a digital image file projected using an enlarger or digital exposure unit such as a LightJet printer. Alternatively, the negative or transparency may be placed atop the paper and directly exposed, creating a contact print. Photographs are more commonly printed on plain paper, for example by a color printer, but this is not considered "photographic printing".
Following exposure, the paper is processed to reveal and make permanent the latent image.
Usage examples of "photographic printing".
All we did was to put the envelope into a printing-frame with a bit of photographic printing paper behind it and expose it to light for a while.