Method and apparatus for multiple drop error diffusion in a liqu

Details Method and apparatus for multiple drop error diffusion in a liqu Method and apparatus for multiple drop error diffusion in a liqu

1997-10-30

2000-05-30

Pendegrass, Joan

Incremental printing of symbolic information

Ink jet

Controller

347 43, 358298, B41J 221, B41J 2205

Patent

active

060683619

ABSTRACT:
A apparatus and method for multiple drop error diffusion in a liquid ink printing system having a print driver including a multiple drop error diffusion circuit. The print driver controls a liquid ink printhead and includes an error diffusion circuit which generates a drop signal as a function of an error signal and a threshold reference signal. The drop signal causes the liquid ink printhead to deposit a plurality of ink drops within one of a plurality of pixel locations on a recording medium. A method includes producing a print driver, for a color liquid ink printer including determining a number of a plurality output levels as a function of a number of a plurality of input levels where a number of ink drops are assigned to each of the determined number of the plurality of output levels.

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