Method and apparatus for recording information on a recording su

Details Method and apparatus for recording information on a recording su Method and apparatus for recording information on a recording su

1974-07-03

1976-11-16

Hartary, Joseph W.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

346 75, G01D 1518

Patent

active

039927121

ABSTRACT:
A plurality of magnetic liquid streams is simultaneously excited to produce a plurality of streams of magnetic droplets of substantially uniform spacing and substantially uniform velocity. Each of the droplets in each of the streams passes over a separate selector for each stream to determine whether the droplet will be utilized for printing on a paper. A predetermined number of the droplets of each of the streams is subjected to a time periodic deflection to cause a first half of the predetermined number of droplets, which have been selected for printing by the selectors, to engage a paper in a first line and a second half to engage the paper in a second line. A ramp voltage deflection is separately applied to the predetermined number of droplets of each stream subjected to each half of the time periodic deflection to cause the print lines of the droplets to be orthogonal to the direction of movement of the paper.

REFERENCES:
patent: 3136594 (1964-06-01), Ascoli
patent: 3641588 (1972-02-01), Metz
patent: 3786517 (1974-01-01), Krause
patent: 3805272 (1974-04-01), Fan et al.
patent: 3828354 (1974-08-01), Hilton
patent: 3864692 (1975-02-01), McDonnell et al.
patent: 3878518 (1975-04-01), Garwin

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