Drive circuit for ink jet discharging head

Details Drive circuit for ink jet discharging head Drive circuit for ink jet discharging head

1978-09-20

1981-01-13

Miller, Jr., George H.

Recorders

Record receiver deforming

346140R, G01D 1518

Patent

active

042452244

ABSTRACT:
A drive circuit for an ink-on-demand type ink jet discharging head used for generating characters and patterns with the jet of ink. A driving pulse delivery circuit is conneted to the ink jet discharging head for delivering it with the driving pulses for causing it to discharge the jet of ink. A control circuit for controlling the voltage of the driving pulses applied to the switching element is connected to a switching element of the driving pulse delivery circuit. The voltage of the driving pulses applied to the switching element may be maintained higher than that of the pulses applied in the normal operation for a predetermined time interval after the driving pulse delivery circuit and the control circuit are turned on so that the pulses applied to the head are stronger than those applied in the normal operation.

REFERENCES:
patent: 3661304 (1972-05-01), Martinez et al.
patent: 3925788 (1975-12-01), Kashio
patent: 3946398 (1976-03-01), Kyser et al.
patent: 4034380 (1977-07-01), Isayama
patent: 4042937 (1977-08-01), Perry et al.
patent: 4126867 (1978-11-01), Stevenson, Jr.
patent: 4161670 (1979-07-01), Kern

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