- Fingerprints on white borders – nightmare on a short print run. A fingerprint is an impression left by the friction ridges of a human finger = fingerprints are the traces of an impression from the friction ridges of any part of a human hand. Impressions of fingerprints may be left behind on a surface by the natural secretions of sweat from the eccrine glands that are present in friction ridge skin, or they may be made by ink or other substances transferred from the peaks of friction ridges on the skin to a relatively smooth surface such as a fingerprint card. Fingerprints records normally contain impressions from the pad on the last joint of fingers and thumbs, although fingerprint cards also typically record portions of lower joint areas of the fingers.
- Action Painting – Pollock. Print dribbled paint.