Voltage modulated drop-on-demand ink jet method and apparatus

Details Voltage modulated drop-on-demand ink jet method and apparatus Voltage modulated drop-on-demand ink jet method and apparatus

1979-06-29

1981-05-05

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1518

Patent

active

042662320

ABSTRACT:
A drop-on-demand ink jet printer in which the print head includes a cavity having a nozzle portion at one end and a transducer mounted to contract a wall portion of the cavity when energized by a suitable voltage drive pulse. The drive pulses are produced at a predetermined rate but at a selectively controlled amplitude in response to the print data. In cases where no drop is required to print the data, the drive pulse is at a lower amplitude than the threshold voltage level, and for the first drop to be formed following a time at which no drop was formed, the amplitude of the drive pulse is greater than the threshold voltage level. At steady state operation of producing drops in sequence, the amplitude of the drive pulses equals the threshold voltage level.

REFERENCES:
patent: 3683212 (1972-08-01), Zoltan
patent: 3787884 (1974-01-01), Demer
patent: 3828357 (1974-08-01), Koeblitz
patent: 4072958 (1978-02-01), Hayami

Affiliated with

Also associated with

Rating

Voltage modulated drop-on-demand ink jet method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Voltage modulated drop-on-demand ink jet method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage modulated drop-on-demand ink jet method and apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-298343