Printing of pixel locations by an ink jet printer using multiple

Details Printing of pixel locations by an ink jet printer using multiple Printing of pixel locations by an ink jet printer using multiple

1988-12-27

1990-10-16

Hartary, Joseph W.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

346140R, B41J 201, B41J 205

Patent

active

049638823

ABSTRACT:
An ink jet printer (60) prints dots (30) of colorant at pixel locations using a printing strategy that reduces the visual impact of improperly operating or inoperable nozzles (18), by using multiple nozzles (18) per pixel location or per pixel row. In one approach, used either for single color or multicolor images, multiple droplets of colorant of the same color are deposited upon a single pixel location from two different nozzles (18). In another approach, used primarily for multicolor images, different pixels of a single pixel row are printed using droplets of a single color from different nozzles (18).

REFERENCES:
patent: 4528576 (1985-07-01), Koumura
patent: 4631543 (1986-12-01), Milbrandt
patent: 4672432 (1987-06-01), Sakurada
patent: 4746935 (1988-05-01), Allen
patent: 4748453 (1988-05-01), Lin et al.

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