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Re:CMS Printers.

Posted by: Anonymous Coward on March 16, 2005 09:14 PM
Actually, it's not the printer that wants data in RGB form, it's the driver. Printers with card sockets have firmware (really a driver built into the printer) to perform the conversion, but all of the inkjets I'm familiar with do indeed expect input data in CMYK, or whatever particular combination of inks the printer uses.

Drivers can accept data in whatever format they want, and convert it to the ink set used by the printer. Most drivers accept RGB input. Gutenprint (the new name for Gimp-Print) accepts CMY and CMYK input in addition to RGB input.

For most people, using RGB input yields better results. Unless you know the precise characteristics of the printer, or have some other reason to need the more precise control, you're generally better off using RGB and letting the driver do its thing.

-Robert Krawitz, Gutenprint/Gimp-Print project lead

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