Roland COLORCHOICE Podręcznik Użytkownika Pobierz pdf (Strona 20)

curves.

Perceptual

is best for photographic images. The relationship between colors in the original is scaled proportionally to fit

the output device’s color gamut.

Relative Colorimetric

When a color in the current color space is out of gamut in the target color space, it is mapped to

the closest possible color within the gamut of the target color space, while colors that are in gamut are not affected. Only

the colors that fall outside of the destination gamut are changed. This rendering intent can cause two colors which appear

different in the source color space to be the same in the target color space. This is called "clipping".

Absolute Colorimetric

Colors match exactly with no adjustment made for white point or black point that would alter

the image’s brightness. This intent works well with logos and other design elements, were exact matching is important.

Saturation

is best for images where true color matching is not as important as vivid colors. Colors outside of the output

device’s gamut are converted to colors within the same saturation but with a different lightness. This intent may be used

to boost colors within a photographic image.

Spot

Color

is best for use with vector images. This intent, which produces the greatest saturation possible, should only

be used with non-photographic images.

•

Info

: Click this button for information pertaining to the ICC output profile that has been chosen under Profile. This

dialog box contains a variety of information about the selected profile, including the ink and media names. If you are not

sure whether or not you are using the correct profile, be sure to view this information. Following are a few guidelines to

help you identify a profile:

FJDyeLcLm

indicates dye ink for Cyan, Magenta, Yellow, Black, Light Cyan, and Light Magenta.

Pig

indicates pigment

- If a name has

Fine, Super, or Photo

in it, then it is appropriate for 720dpi output.

- If a name has

Fine2

in it, then it is appropriate for 540dpi output.

- If a name has

Normal or Fast

in it, then it is appropriate for 360dpi output.

- If a name contains none of the above descriptions in it, then it is appropriate for either dpi value.

Color Mode-

Select either CMYK LcLm, or CMYK OrGr.

CMYK

is four-color printing with Cyan, Magenta, Yellow, and Black

ink.

LcLm

is four-color printing plus two additional colors: Light Cyan and Light Magenta. The LcLm option is a good way to

create smooth transitions between colors. However, even if you have six inks, some jobs may print satisfactorily using only four.

The

OrGr

option increases the capability to produce reds and greens, and their various shades.

Driver Options (HiFi JET)

- Clicking this button launches the Driver Options dialog, shown below.

By checking Enable Driver Options, printer-specific options defined here are sent to your printer to override option settings

currently made through your printer menu. When it’s unchecked, the printer settings are used.

Print Quality-

The Options that are available in the Print Quality list are linked to the Resolution setting in on the Print tab, changing according to

the DPI setting.

You can select from among six print modes. Print mode is an embedded combination of printing resolutions and

number of printing passes. Generally, higher printing resolution assures higher printing quality, but this quality is a “trade off” with

printing time, with higher quality output taking longer to print. Besides, due to the features and specifications of the material in use,

improvement of print quality by using a different print mode may be unapparent. If you select an appropriate ICC output profile

for the target material, and a profile for the material is given a name with a print mode, then that print mode will probably yeild the

best print in terms of time and quality.

Each print mode configures the printing resolution as follows, and should match your selection in the COLORCHOICE Print tab.

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