1 May 1990 Ion printing: past, present, and future
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In 1842 Ronalds called down lightning from the sky to generate the world's first ion print. His "Recorder of Atmospheric Electrical Events" employed a wire, supported from an elevated anchor paint, as a atmospheric charge collector. The wire was connected to a stylus which radially traversed a rotating insulating disk to form a spiral track on the surface of the disk. When the potential across the recording gap at the tip of the stylus exceeded the breakdown strength of air, a discharge occurred which formed an electrostatic latent image on the surface of the insulating disk.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Richard A. Fotland "Ion printing: past, present, and future", Proc. SPIE 1252, Hard Copy and Printing Technologies, (1 May 1990); doi: 10.1117/12.19767; https://doi.org/10.1117/12.19767

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