Ionographic printing with a focused ion stream controllable in t

Details Ionographic printing with a focused ion stream controllable in t Ionographic printing with a focused ion stream controllable in t

1994-10-27

1997-04-01

Fuller, Benjamin R.

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

347 55, B41J 2415, B41J 206

Patent

active

056171293

ABSTRACT:
An ionographic printer directs a stream of ions from a source to a charge receptor to create an electrostatic latent image thereon. The ion stream passes through a relatively large aperture having associated therewith a focusing pinch electrode for narrowing the ion stream to a preselected width, displacing electrodes for positioning the narrowed ion stream within the aperture, and focus electrodes. Varying the biases of the displacing electrodes causes the ion stream to scan across the aperture to deposit multiple spots of charged areas at desired locations on the receptor. Varying the biases of the focus electrodes cures positional and ion-stream cross-section anomalies.

REFERENCES:
patent: 4675703 (1987-06-01), Fotland
patent: 4763141 (1988-08-01), Gundlach et al.
patent: 4839670 (1989-06-01), Snelling
patent: 5257045 (1993-10-01), Bergen et al.
patent: 5325121 (1994-06-01), Genovese

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