Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1992-05-20
1995-03-07
Smith, Matthew S.
Incremental printing of symbolic information
Ink jet
Ejector mechanism
347 5, 347 74, B41J 212
Patent
active
053962745
ABSTRACT:
A method and apparatus are disclosed in which deflection and print speed are controlled by varying the nozzle drive frequency to increase or decrease drop velocity thereby to control drop deflection. The variation is done in a manner to maintain the ratio .lambda./d and drop size substantially constant. By altering the drop velocity the transit time of the drops through the high voltage deflection field is changed, permitting increased or decreased deflection. The system includes a pressure controller, a velocity sensor, a variable frequency nozzle drive and a processor. Calculations and operations are performed by the processor, based on the size of an operator selected image.
REFERENCES:
patent: 3736593 (1973-05-01), Keur et al.
patent: 3787882 (1974-01-01), Fillmore et al.
patent: 4216480 (1980-08-01), Buehner et al.
patent: 4217594 (1980-08-01), Meece et al.
patent: 4337470 (1982-06-01), Furukawa
patent: 4435720 (1984-03-01), Horike et al.
patent: 4555711 (1985-11-01), Sato
patent: 4612553 (1986-09-01), Kohler
patent: 4626867 (1986-12-01), Furukawa et al.
patent: 4860027 (1989-08-01), Ozelis et al.
patent: 4990932 (1991-02-01), Houston
patent: 5160939 (1992-11-01), Bajeux et al.
IBM Technical Disclosure Bulletin, vol. 21, No. 3, "Controlling Drop Velocity and/or Drop Size in an Ink Jet", Chaudhary, K. C., Aug. 1978, pp. 1212-1213.
"High Frequency Oscillography with Electrostatically Deflected Ink Jets", Mar., 1964, Sweet, Richard G.
Braun Timothy
Keur Robert I.
Ortquist Bruce
Smith Matthew S.
Videojet Systems International Inc.
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