Re: How does the printer choose which black ink to use when it has pigment and dye based black ??

"Michael Johnson" <cds@xxxxxxxxx> wrote in message news:yYqdnUbML8ZYrQPanZ2dnUVZ_u-unZ2d@xxxxxxxxxxxxxxx

I just performed the tests that Dan mentioned and they do show that pigment black is used when printing color on plain paper. When I specified photo paper the black lead-in ink wasn't present and it looked like all the colors (including black) were laid on the page during one pass of the head. Because of the configuration of the nozzles, this would only be possible if it used only the dye black cartridge.

The last statement is just not true. Printers can and do lay down drops from black and color in the same swath, even if the black drops are larger and contained in a different printhead with a different swath size. This happens to be the absolute truth, you can doubt it if you wish but I have said all I care to on the subject.

- Bob Headrick, MS MVP Printing/Imaging


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