See the T-shirt images above. The left artwork is the print made in CMYK color mode and the right artwork is the print made in RGB color mode. What do you think what's happening?
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To tell very complicated story short, color matching is a kind of "translation" among devices.
Imagine if all attenders from various countries speak English, the conference will be understandable. But if two or three translators are necessary between two attendees, what will happen? Indirect "messages" imply ambiguity and vagueness. Maybe some mis-translation. The same trouble happens when the artwork is made in CMYK.
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Example:
Compare the process below when you want to fill an object in solid 100% yellow:
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| |
action |
RGB color mode with sRGB |
CMYK color mode with
some profile |
| 1 |
user |
Maximum Yellow |
Maximum Yellow |
| 2 |
user / application |
Yellow: R=G=255, B=0 |
Yellow: Y=100% CMK=0% |
| 3 |
application with proper color settings |
RGB->RGB
R=G=255 B=0 |
CMYK->RGB
R=246 B=235 C=22 |
| 4 |
Printer Driver |
RGB->CMYK
Y=100% |
RGB->CMYK
Y=94% M=0.1% |
| 5 |
GT-541 printer |
Y head
Y=100% |
Y & M heads
Y=94% M=0.1% |
| 6 |
T-shirt |
Maximum Yellow |
slightly reddish grayish Yellow |
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This is just an example: if the CMYK profile is different, the output color will be different, unexceptionally lesser color satulation and grayisher. Needless to say, if the RGB is not sRGB, the same trouble happens. If you use Pantone® palette, the difference will be worse because of the application process. And it depends on applications to decide the "3" action. Generally Microsoft Windows-oriented applications have less trouble, because they only accept RGB color mode (or color space). But highend graphic application like Adobe Illustrator, they have a histroy of CMYK, PostScript. Those who can make beautiful graphics are more easier to have trouble!
Please do proper color settings (refer to each application pages) so you can get a best performance from GT541. Remember, remarkably worst-effected colors are Yellow, Black, and Purple: if your artwork is grayish and dull colored, or you cannot get colors like Color Chart, maybe the color settings are wrong.
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