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Making negatives and plates for printing by electroerosion: Introduction and overview

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1 Author(s)
Pennington, K.S. ; IBM Research Division, Thomas J. Watson Research Center, P.O. Box 704, Yorktown Heights, New York 10598, USA

The most familiar electroerosion printers operate by removing the whitish or silvery aluminum overlayer from discrete areas of a special paper so as to reveal a black underlayer. The direct negative/direct plate (DNP) material described here is a new dual-function printing material which, when employed together with an electroerosion printer, allows direct generation of negatives or (short-run) offset printing plates suitable for use in printing and publishing applications. The DNP material has been specifically developed for use with the IBM 4250 electroerosion printer family, allowing these printers to generate negatives, plates, and camera-ready copy directly from the computer with no chemical processing.

Note: The Institute of Electrical and Electronics Engineers, Incorporated is distributing this Article with permission of the International Business Machines Corporation (IBM) who is the exclusive owner. The recipient of this Article may not assign, sublicense, lease, rent or otherwise transfer, reproduce, prepare derivative works, publicly display or perform, or distribute the Article.  

Published in:

IBM Journal of Research and Development  (Volume:35 ,  Issue: 4 )