Recorders – Markers and/or driving means therefor – With ink supply to marker
Patent
1981-01-21
1983-04-05
Hartary, Joseph W.
Recorders
Markers and/or driving means therefor
With ink supply to marker
G01D 1518
Patent
active
043793045
ABSTRACT:
A mosaic ink recorder having a number of outlet nozzles in a nozzle plate for discharging ink droplets on a recording media has a screen with apertures therein which are disposed in groups in registry with the outlet nozzles, the apertures in the screen having a diameter which is substantially less than the diameter of the outlet nozzles. The apertures increase the pressure necessary to break the meniscus of the ink remaining in a channel after discharge of a droplet by a ratio approximately equal to the ratio of the diameter of the aperture to the diameter of the nozzle. The recording head is thus rendered substantially less sensitive to vibration and other disturbances which may otherwise break the meniscus and permit ink to flow in a channel at undesired times. The screen may be a separately attachable element or may be integrated with the body of the recording head.
REFERENCES:
patent: 3747120 (1973-07-01), Stemme
patent: 4158847 (1979-06-01), Heinzl et al.
patent: 4233610 (1980-11-01), Fischbeck
Denny, C. M.; Nozzle Filter and Orifice Configuration for an Ink Jet Printer; IBM TDB, vol. 21, No. 11, Apr. 1979, pp 4590-4592.
Kendall et al.; Combined Nozzle and Filter Assembly and its Fabrication; IBM TDB, vol. 22, No. 8A, Jan. 1980, pp. 3441-3442.
Heinzl Joachim
Kattner Erich
Hartary Joseph W.
Siemens Aktiengesellschaft
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