Method and apparatus for generating a gray scale with a high spe

Details Method and apparatus for generating a gray scale with a high spe Method and apparatus for generating a gray scale with a high spe

1983-04-29

1985-03-05

Tarcza, Thomas H.

Recorders

Markers and/or driving means therefor

With ink supply to marker

346 11, G01D 1518

Patent

active

045034443

ABSTRACT:
A thermal ink jet printer emits discrete drops of a variable volume in order to create a printed gray scale. A pulse train of packets of pulses is used to generate drops comprising packets of connected or merged droplets; the reciprocal of the pulse repetition rate is greater than the bubble collapse time and the pulse packet rate is less than the maximum single droplet emission rate of the print head. The individual droplets within the packet merge in flight to create a single drop whose volume depends upon the number of pulses contained within the pulse packet. The summing of impulses generated by the individual pulses is also useful so that drops of ink may be emitted by a resistor which is physically undersized for the particular ink being used.

REFERENCES:
patent: 4339762 (1982-07-01), Shirato et al.
patent: 4353079 (1982-10-01), Kawanabe

Affiliated with

Also associated with

Rating

Method and apparatus for generating a gray scale with a high spe does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for generating a gray scale with a high spe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for generating a gray scale with a high spe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1737248