Progress in Pressureless Printing.

Electric attraction across a paper to plate gap of .001 inch transfers ink in a completely workable manner without pressure or wear. The principle of this Electronographic Press and its plates will be explained. Experiments to eliminate inking and drying problems have made use of fine powders. Printed samples of this Smoke Onset method will be shown and discussed. Experiments with transparent negatives and positives to replace printing plates have used light as a driving ion force instead of electrostatic pressures. Applications of this principle to office duplicators, photo-type composition, and the endless negative belt idea to book production will be described.