Multi-tone recording method for ink jet printer

Details Multi-tone recording method for ink jet printer Multi-tone recording method for ink jet printer

1986-04-21

1987-02-10

Goldberg, E. A.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

346 75, G01D 1518

Patent

active

046426531

ABSTRACT:
A method for a charge control and multi-step deflection control type ink jet printer is disclosed which renders halftone by multi-step gradation. When an ink ejected from a nozzle is to be charged, a charging voltage is suitably varied to cause a shift in deflection by a pitch smaller than one dot pitch in the deflection direction, thereby selectively causing dots in the deflection direction to overlap and separate from each other. The pitch for developing the shift is variable to control the overlapping or separating degree of the dots in order to accomplish gradation in numerous densities.

REFERENCES:
patent: 4115787 (1978-09-01), Fujimoto et al.
patent: 4115788 (1978-09-01), Takano et al.
patent: 4189754 (1980-02-01), Gamblin
patent: 4303925 (1981-12-01), Harbour, Jr. et al.

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