Printing with multiple print heads

Details Printing with multiple print heads Printing with multiple print heads

2005-05-10

2005-05-10

Nguyen, Thinh (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

06890058

ABSTRACT:
Reducing deterioration of the printing quality due to the deviation of the dot forming position in the case of printing with multiple print heads.The present invention is a printing apparatus for printing by recording ink dots on a print medium while moving a print head group in a main scan direction. In the printing apparatus closer to a center in the sub-scan direction a nozzle is, greater a recording-target pixel rate is set for the nozzle among the plurality of nozzles on each of the print head. The recording-target pixel rate being a rate of pixels in which the nozzle is in charge of a formation of a dot while the nozzle among the plurality of nozzles passing over one raster line.

REFERENCES:
patent: 4198642 (1980-04-01), Gamblin
patent: 6206502 (2001-03-01), Kato et al.
patent: 2001-096734 (2001-04-01), None
patent: 2001-277658 (2001-10-01), None

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