Method and apparatus for determining optimum ink drop formation-

Details Method and apparatus for determining optimum ink drop formation- Method and apparatus for determining optimum ink drop formation-

1996-07-08

1999-08-17

Le, N.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

B41J 212

Patent

active

059401010

ABSTRACT:
The optimum excitation frequency for forming successive ink drops in an ink jet printer is determined by forming a sequence of ink drops at a plurality of different drop-formation frequencies and phases thereof and integrating a detected current representative of the value of the charge on the ink drops as a function of time for each the plural frequencies and phases thereof to create a corresponding plurality of waveforms. The frequency of the optimum waveform, which minimizes the undesired formation of satellite ink drops and undesired drop dispersion, is then selected for use during the next print mode. The optimum waveform is characterized by a single maxima and minima separated in phase by a value no greater than a predetermined maximum value.

REFERENCES:
patent: 5583552 (1996-12-01), Mutoh
Nilsson, Johan "Applications of Micro Drops" Dept. of Electrical Engineering, Lunds University, Lund, Sweden (ISSN 0346-6221), Jun. 1993, pp. 90-101.

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