Apparatus for ionographic printing with a focused ion stream

Details Apparatus for ionographic printing with a focused ion stream Apparatus for ionographic printing with a focused ion stream

1994-10-31

1995-09-12

Wong, Peter S.

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

G01D 1506

Patent

active

054501156

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 pinch electrode for narrowing the ion stream to a preselected width, and displacing electrodes for positioning the narrowed ion stream within the aperture. 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. The electrodes can be designed to compensate for spot placement skew and anomalies in the cross-sectional shape of the displaced ion stream.

REFERENCES:
patent: 4544933 (1985-10-01), Heinzl
patent: 4675703 (1987-06-01), Fotland
patent: 4763141 (1988-08-01), Gundlach et al.
patent: 5170185 (1992-12-01), Takemura et al.
patent: 5257045 (1993-10-01), Bergen et al.
patent: 5270741 (1993-12-01), Hosaka et al.
patent: 5325121 (1994-06-01), Genovese

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