Ink drop velocity control system

Details Ink drop velocity control system Ink drop velocity control system

1984-08-03

1985-11-26

Goldberg, E. A.

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Record receiver deforming

346140R, 73861, G01D 1518

Patent

active

045557128

ABSTRACT:
A method and apparatus are disclosed for providing feedback control of the ink drop velocity in a drop marking system. The control system maintains essentially constant velocity of the ink drops as they pass through a deflection field which causes certain of the electrically conductive drops to be directed onto a substrate to be marked. The ink flow between two selected points is monitored by a control device to generate ink flow rate data and compared against a reference value. In the event that a flow rate deviation is sensed, appropriate action is taken to change the flow rate. Such action includes altering ink viscosity and/or ink pressure.

REFERENCES:
patent: 3930258 (1975-12-01), Dick et al.
patent: 4067020 (1978-01-01), Arway
patent: 4121222 (1978-10-01), Diebold et al.
patent: 4337468 (1982-06-01), Mizuno
patent: 4382382 (1983-05-01), Wang

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